Technical Evaluation of the Comcast Cable System
Techmical Evaluation of the
Comcast Cable System
Serving
Spokane Valley, Washington
May 2006
Prepared by
Columbia Telecommunications Corporation
5550 Sterrett Place, Suite 200
Columbia, MD 21044
410.964.5700
www.intemetCTC.com
1'C
_ LINVOMMUNICATIONS
~ ~ ~ ~ . FORiTHE~PUBLlC NTEREST
'I'able of Contents
I. EXECUTIVE SUMMARY 1
1.1 Adequacy of the Overall Picture Quality 1
1.2 Cable Network Physical Plant 1
1.3 Public, Educational, and Government Transmission Facilities 1
H. SYSTEM DESCRIPTION AND OPERA7'ION 3
2.1 Headend 3
2.2 Distribution System 7
2.3 Subscriber Channels 7
2.4 Video On Demand 10
2.5 Emergency Alert System 10
2.6 Public, Educational, and Government Channels 11
2.7 Cable Modem Service 11
III. PERFOT'.MANCE TESTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12
IV. PHYSICAL PLANT IIVSPECTION 14
4.1 Physical Plant Standards 14
4.1.1 Bonding and Grounding 15
4.1.2 Lashing ..................................................................................................................15
4.1.3 Construction ..........................................................................................................16
4.1.4 Clearances 16
4.1.5 Guying and anchoring 16
4.2 Subscriber Drop-Related Violations 17
4.2.1 Drop Grounding 17
4.2.2 Exposed, Broken, or Missing Underground Plant or Equipment 19
4.2.3 Drop Clearance 19
Appendices
Appendix A: Performance Test Results
Appendix B: Drop Inspection Field Data
Appendix C: FCC Technical Standards
Appendix D: About Columbia Telecommunications Corporation
Table of Figures
Figure 1: Spokane Cable System Configuration 4
Figure 2: Spokane Headend Building and Satellite Antenna 5
Figure 3: Modern Analog Channel Signal Processing Equipment 5
Figure 4: UPS and Battery Backup System 6
Figure 5: 750 kW Diesel Generator 6
Figure 6: Analog Channel Line-Up 9
Figure 7: Emergency Alert System Equipment 10
Figure 8: Cable Grounded to Exterior Water Pipe 18
Figure 9: Modern Fully-Compliant Cable Drop Installation 18
Spokane Valley- 2006
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1. EXECiJTIVE SUMIVIARY
Columbia Telecommunications Corporation ("CTC") conducted an inspection of the cable system
in the franchise area served by Comcast Communications in the City of Spokane Valley,
Washington from April 19 - 20, 2006. This review included an inspection of the headend,
electrical testing of the system, and inspection of portions of the physical plant.
The purpose of our assignment was to determine if the cable system as operated by Comcast
Communications meets the terms of the technical requirements of the Cable Television Franchise
Agreement and to determine if the network is performing at or above the performance levels
defined by the Federal Communications Commission.
1.1 Adequacv of tbe Overal9 Picture Oualitv
Our examination and quantitative measurement of the picture quality of the individual cable
channels at the headend and at four tests points located in selected neighborhoods of the City
verified that the cable system provides excellent picture quality on all television broadcast, analog
satellite and satellite delivered digital video services. We found that the public, educational, and
government channels carried on the basic tier were delivered to subscribers with quality that was
comparable to the commercial broadcast services.
All of the individual channels measured by CTC during the onsite visit as well as the measurement
data contained in the FCC proof test data provided by Comcast confirm that the system exceeds
the FCC minimum performance criteria for cable systems. Further, we found that the cable
network and transmission system transports signals to the subscriber with a level of signal quality
that is highly comparable with the quality to the signals observed at the headend.
1.2 Cable Netvvork Phvsical Plamt
In addition to the system testing, CTC inspected the physical cable plant occupying public and
private rights-of-ways. With regard to the transmission plant inspected on the utility poles and
underground cable plant, we found the cable plant to be in generally good-to-very good condition
in relationship to other cable systems that we have inspected, and more specifically, with
relationship to the other utilities serving the City. There were no obvious problems identified,
such as hanging cables, missing cable guy guards, or ungrounded cable plant. We observed that
pole-mounted power supplies were locked and properly grounded as required.
W ith regard to subscriber drop cables that connect subscriber residences to the cable system, we
found a significant number of cable drops that were not compliant with the current electrical code.
More detailed information regarding the non-compliant drop cables is provided in Section 5.2.
1.3 Public. Educational, and Government Transrnflssion Facilities
As part of our testing, we examined the quality of the public, educational, and government
("PEG") channels. PEG channels carry locally produced programming for subscribers in Spokane
Valley and other communities served by the cable system. PEG programming covers a wide range
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of video and imaging material produced locally by governments and educational organizations
such as the Cities of Spokane Valley, Spokane, local colleges, as well as locally produced
independent programming. At present, there is no separate PEG channel assigned to the City of
Spokane Valley. The program feeds for the existing PEG programming consists of dedicated fiber
optic links connecting the program origination centers to the Spokane headend.
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II. SYSTEM DESCIZIPTION AND OPERATION
The cable television system in Spokane Valley is part of the Comcast greater Spokane
metropolitan area system. The Spokane Valley systems are served from the Comcast headend
located at 1717 East Buckeye Avenue in Spokane. This site includes all headend equipment to
receive, process, and monitor signals for transmission to subscribers.
The Spokane Valley system was upgraded from a bandwidth of 450 MHz to 750 MHz technology
during the 2000-2002 time period. The upgraded system offers a wide range of analog and digital
television channels, pay-per-view channels, video on demand, high-definition television, and high-
speed data services. The bandwidth in MHz is a measure of the systems capacity to provide
services to subscribers. The very newest cable TV systems have a capacity of up to 860 MHz. The
Comcast system has a capacity of 750 MHz about 110 MHz less the most modern state of the
art systems. In the major television markets that have 20 or more local TV broadcast channels;
this extra capacity is often needed to support the traditional cable programming as well as the
many newer interactive services.
In view of the modest number of local broadcast stations in the Spokane area as well as the
upcoming move by the FCC to all digital broadcast stations by the year 2009, we find the 750
MHz system, which employs modern digital compression transmission technology, adequate to
meet the existing and projected near-term future network capacity needs for the subscribers in
Spokane Valley.
2.1 Headend
On April 19, 2006, CTC inspected the headend site. The headend facility serves as the network
control for the cable system. In addition to serving the City of Spokane Valley, the headend also
serves Comcast cable customers in Spokane and other nearby areas. A system overview diagram
for the network is provided in Figure 1.
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Figure 1: Spokane Cable System Configuration
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We found the headend facility to be in excellent condition. All electronic equipment has recently
been upgraded with modern control and signal processing equipment (see Figures 2 and 3).
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Figure 2: Spokane Headend Building and Satellite Aotenna
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All modulators, signal processors, fiber interface, cable control, and other associated equipment is
mounted in telecommunications equipment racks.
Figure 3: Modern Analog Channel Sigoal Processing Equipment
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The facility is centrally air-conditioned and temperature regulated to maintain all electronic
equipment at the desired operating temperature independent of outside weather conditions.
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The electronic power is conditioned from the power utility source by an uninterrupted power
supply ("UPS"), shown in Figure 4. A stand-alone back-up diesel generator has been installed in
the headend building that automatically goes into operation in the event of failure of the
commercial power. The 750 kW generator has more than sufficient power to operate the headend
equipment continuously until commercial power is restored (see Figure 5). The UPS maintains
continuous operation of the network during the transmission phase between commercial power
operation and the back-up generator.
Figure 4: UPS and Battery Backup System
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2.2 IDistribution Svstem
The plant distribution system is hybrid fiber-coaxial cable with fiber optic nodes and a maximum
amplifier cascade of six, plus the optical node. This is an acceptable cascade length in a recently
rebuilt system. The architecture is a standard design for cable systems upgraded in the past few
years (see Figure 1 in Section 2.1). The average number of residential dwelling units passed per
fiber optic node is 1,000 or less, with a maximum number passed of 2,000 units. The electronic
equipment in the fiber node is capable of segmenting the return path into multiple paths so that the
maximum number of residences passed on a return can be reduced to 500 dwelling units. This
network segmentation effectively multiplies the return bandwidth available to interactive services,
such as cable modems, by a factor of four. It allows for an immediate upgrade of the system by
simply inserting modules into existing equipment to expand the network capacity.
Approximately one-third of the nodes in Spokane Valley are connected to optical hubs which
expand the capacity of existing fiber by creating additional optical wavelength in existing fiber
links connected to the headend. Comcast uses this relatively new technology to serve Spokane
Valley and other adjacent communities.
The upper system bandwidth is 750 MHz providing 700MHz downstream transmission capacity.
The upgraded network has unassigned bandwidth that can support additional services in the future.
Comcast engineers estimate that there are 186.8 underground miles and 358.64 aerial miles of
cable plant, for a total of 545.44 miles. The power supplies for the cable plant are backed-up with
3 or 6 batteries that are capable of operating the system in the absence of external primary power
for 3 to 4 hours. The power supplies have a remote sta.tus monitoring system that allows the
system managers to remotely monitor the battery charge level and to alert the operators when
power supplies are operating in the stand-by mode.
Based on the findings of our inspection, we conclude that the existing cable network has sufficient
capacity to support advanced interactive cable services, such as video on demand, telephony and
high speed Internet (cable modems).
2.3 Subscriber Channels
The Spokane Valley system provides 75 analog channels, 54 digital audio channels, and more than
170 digital channels. The Comcast channel line-up is provided in Figure 6. The Limited tier
consists of 32 analog channels, which are a mix of local off-air broadcast channels, imported
broadcast channels, and PEG services. All system subscribers receive the Limited Tier. The
Basic Tier consists of an additional 43 analog channels that mainly provides satellite delivered
programming.
Digital channels are received from the satellites and re-packaged or groomed onto the various
digita.l channels carried on the system. Standard definition digital service (SDTV) subscribers use
either the Motorola Model DCT 2000 converter box for standard (NTSC) format digital service or
the DC 6200 converter box for the HDTV service.
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At the time of our inspection, Comcast reported the following subscriber base in the City of
Spokane Valley:
Total dwelling units passed 45,644
Video service subscribers 23,179
Digital tier subscribers 8,833
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Figure 6: Analog Channel Line-tTp
Channel ~ Channel
2-KREM (CBS) 139-ABC Family
3-KAYU (FOX) ~ 40-Nickelodeon ~
14-XLY (ABC) ~ 41-I)isne_y Channel ~
I 5-City Cable 5-TVW ~ 42-Cartoon Network
16- KHQ (NBC) ~ 43-Animal Planet
' 7- KSPS ( PBS) 144-CNN ~ 8-PAX-TV I 45-Headline 1Vews ~
9-Discovery Channel 146-CNBC
10-Home Shopping Network 147-1VISNBC
11-ESPN ~ 48-FOX 1Vews Channel
~ 12-ACE-TV ~ 49-Court TV
~ 13-QVC ~ 50-Oarygen
~ 14-Community ProductionlNASA ~ 51-Lifetime
15-Educational Access 152-A&E ~
~ 16- Educational Access ~ 53-FX ~
~ 17- Educational Access ~ 54-'TNT ~
18- Educational Access ~ 55-TBS ~
~ 19- Educational Access 156-BE'T
~ 20-The Weather Channel ~ 57-SQike TV
21-WGN ~ 58-gJSA
122-KSKN (WB) ~ 59-Sci-Fi Cbannel
I 23-Norhtwest Cable News ~ 60-Comed_y Central
124-KQUP . ~ 61-Country Music Television
25-TVW 162-VH1 26-KCDT 163-NI'I'V ~
27-C-SPAN I 64-E! Entertainmeat 'I'V
28-C-SPAN 2 165-Bravo
29-Trinity Broadcast Network ~ 66-FOX 1Vlovie Channel
30-Speed Channel ~ 67-American 1Vlovie Classics ~
31-Outdoor Life 168-HGTV ~
32-FOX Sports Net ~ 74-PIN
33-Golf Channel ~ 75-AZN 'I'V
34-ESPN2 ~ 76-Telemundo
35-Food Network ~ 77-Hallmark Channel
~ 36-Travel Channel ~ 78-Jewelry TV
~ 37-The History Channel ~ 99-TV Guide Channel
~ 38-'The Learniog Channel ~
Bolcl - Basic cable
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2.4 Video On Demand
Rather than using dedicated channels, video on demand ("VOD") programming is selected and
narrowcast to individual subscribers as they order a program, thus allowing the subscriber to
control program navigation (start, pause, fast-forward, rewind, and stop) on their own. VOD
services have been offered to subscribers on this system for more than six months.
2.5 Emergencv Alert Svstem
The nationwide Emergency Alert System ("EAS") enables authorized government authorities to
override the programming on a cable system to provide emergency information to subscribers.
The minimum requirements for EAS system operation are outlined in the FCC rules and
regulations. These regulations detail a testing procedure and the documentation required.
The Spokane Valley Comcast system uses the Sage system (see Figure 7). According to Comcast,
a full-screen message is displayed on all analog and digital channels, except for local off-air
channels, which requested that the cable operator not override its channels.
The Sage system provides an EAS message on all analog channels. The digital subscriber set-top
converters are automatically force-tuned to an analog channel to view the EAS message. The EAS
equipment is programmed to forward only weather, state primary, state, local, federal, and
required test alerts to the subscriber.
Figure 7: Emergency Alert System Equipment
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The cable operator is required to maintain records documenting the FCC-required EAS testing
results as well as recent copies of the FCC technical performance tests in a Public Reference file
that is available for review by the general public. As part of our inspection, we reviewed the
Public file and found that it contained the required technical materials.
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2.6 Public. Educational, and Government Channels
The Comcast headend receives programming provided by the PEG programmers on dedicated
fiber optic transmission links. The PEG programming in Spokane Valley comes from providers in
the City of Spokane. The following PEG programming is carried on the system:
• Channel 5: Spokane City Channel
0 Channel 14: Community Production
• Channel 15: Educational Access
a Channel 16: Educational Access
• Channel 17: Educational Access
• Channel 19: Educational Access
The City of Spokane Valley currently has no local source of PEG programming. There do not
appear to be any technical barriers to providing specific PEG channels for Spokane Valley. This
capability might be implemented by adding a channel to the current line or by segmenting the
system and replacing one or more of the Spokane City channels with a Spokane Valley channel. If
live origination or local program playback is desired, then a program feed line from Spokane
Valley to the Comcast headend will have to be implemented.
2.7 Cable Modem Service
Comcast provides high speed Internet through cable modem service. The routing and control
network equipment is manufactured by Cisco and is located at the headend. The subscribers of
cable modem service access the Internet through a network hub controller located at the headend
(see Figure 1). Comcast did not provide any data on the number of customers subscribing to the
cable modem service.
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III. PERIFOIZMANCE T'ESTIlNG
The FCC requires semi-annual Proof-of-Performance ("proofl') tests to verify the system meets the
FCC's minimum technical standards. The tests must be performed once in the winter and once in
the summer. The testing procedures presume that a sample of ineasurements taken for a number
of channels at a number of locations across the system will be representative of the system as a
whole. However, the operator is required to have all channels meet the FCC minimum technical
requirements. The number of channels and locations to be tested is determined using an FCC
formula based on the number of subscribers and the cable system design. Prior to the onsite test
and inspection, we reviewed the results of the three most recent sets of proof tests conducted by
Comcast: Winter 2005, Summer 2005, and Winter 2006. The test data and supporting
documenting were provided in an extremely detailed and comprehensive form.
The FCC requires the tests to be performed to ensure that all subscribers receive a basic minimum
level of service. The Spokane Valley system performs at a level substantially above the FCC
minimum standards. The FCC standards, if achieved, deliver a picture to the subscriber similar in
quality to a good consumer grade VHS video tape. The industry goal is to provide a picture of
higher quality, more in line with DVD quality.
Signal amplitude level tests and subject monitoring tests were performed and recorded for all
analog channels. Further, the FCC requires cable operators to perform a more detailed signal
quality testing on a select number of analog video channels to provide a quantitative measurement
of the system performance. For the 750 MHz system, Comcast is required to examine 9 channels
in detail.
For the 9 channels selected, measurements were made of the signal-to-noise ratio, and second and
third order distortions or other coherent disturbances. A hum measurement is required on at least
one channel. Frequency measurements of both carrier and separation are also required.
The FCC requires that each cable operator measure and record signal leakage radiating into the air
from a cable plant to demonstrate compliance with a cumulative leakage index ("CLI"). Signal
leakage is caused by defects in the distribution hardware, which can cause interference with other
communications signals such as aeronautical and navigation signals. To protect against these
harmful signals, the FCC requires that the cable operator check the CLI of the cable plant at least
once a year. The CLI tests verify the isolation of the cable system from the outside world. An
ideal cable system neither radiates radio frequency signals nor allows external signals to enter or
leak into the cable system. As a part of our testing, CTC used the Comcast leakage test equipment
at each of the test locations to monitor for the level of signals radiated from the cable system. No
measurable leakage was encountered during our tests.
The required FCC leakage measurements may be accomplished by either extensive ground-based
observations or by measurements made while flying over the system. The most recent flyover test
was conducted on August 21, 2005 by Martech Engineering a firm that specializes in performing
CLI tests. The Martech certification showed that 99.64 % of the Comcast Spokane system had
radiation levels below the allowable FCC lOµV/m field level and therefore is in full compliance.
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On April 19 and April 20, 2005, in cooperation with Comcast technical staff, CTC performed a
subset of the FCC proof tests at the headend and at four locations in the City of Spokane Valley.
The headend tests were first made to confirm that the signals assembled at the headed were
properly received and processed prior to transmission on the system, and that they were all
adjusted to the same audio and video carrier levels. Each of the analog and a few selected digital
channels were examined. Starting with the basic tier, we examined each channel for picture
quality.
For the proof tests we selected 9 channels for testing at the following sites:
• Test Point 1: 14220 East Mission, Spokane Valley Node SZE3
a Test Point 2: Robie & l Oth, Spokane Valley Node SZEW
• Test Point 3: 10605 East Buckeye St. Spokane Valley Node SDWA
• Test Point 4: 8th& Joel, Spokane Valley Node SDSP
A Stealth signal level meter model SDA4040D supplied by CTC, and a television receiver and
spectrum analyzer provided by Comcast was used to conduct tests of the signal level, carrier-to-
noise, hum, and subjective picture viewing tests at the sites. The detailed test results are provided
in Appendix A.
Overall, the visual testing and quantitative measurements support that the system was operating
properly at all test points. Measurements were made with regular programming to minimize
subscriber inconvenience. Typically, FCC proof ineasurements are made with the removal of
programming and may result in slightly better measurement results. All test points met FCC
minimum technical requirements.
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IV. PHYSICAL PI.ANT Il`15PEC'TION
A physical inspection of the cable plant, which included both underground and aerial construction,
was conducted in the area around the proof test sites. The inspection concentrated on an
examination of the quality of the plant construction, appearance, and compliance with national
construction standards. The national inspection standards and authorities, along with descriptions
of the violations, are included in this section of the report. Accompanied by Comcast
representatives, CTC inspected cable plant in the public rights-of-way and at individual subscriber
residence connections ("drops") in residential areas. These walkout inspections were focused in
the vicinity of the test points concentrating at the Mission and l Oth Street sites. The areas selected
for inspection represented a reasonable cross-section of established, new aerial, and underground
areas for plant and drop inspection. The areas were selected by CTC in concurrence with City
staff and Comcast representatives. The specific areas examined were in and around the
neighborhoods of:
• Inspection Area 1: Mission Avenue, Spokane Valley
o Bolivar Avenue
o Bannen Avenue
o Inspection Area 2: Mallon Avenue, Spokane Valley .
o Best Road
o Evergreen Road
• Inspection Area 3: Robie , Spokane Valley
0 10~' Avenue .
0 11 t' Avenue
• Inspection Area 4: Perrine Avenue, Spokane Valley
0 12t' Avenue
0 13t' Avenue
During the physical plant inspection, we did not find any significant violations on the cable system
plant that were under the control of the cable company.
4.1 Phvsical Plant Standards
There are two primary national construction standards cited with which the cable system must
comply.
The first standard, the National Electrical Safetv Code ("NESC") published by the Institute of
Electrical and Electronics Engineers, Inc., 2002 and revisions of 2005, is the primary guide to
construction of the cable system in the public rights-of-way. The NESC is a national code
designed to provide standards and work rules to protect persons against hazards from the
installation, maintenance, and operation of electrical systems and communications lines.
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The second standard is the National Electrical Code ("NEC") published by the National Fire
Protection Association, Inc., 2002 and revisions of 2005. This national code establishes rules for
the safe installation of electrical conductors and equipment.
Other industry standards and authorities for construction and installation practices will also be
mentioned as they relate to problems we found that warrant correction.
During our inspection of the cable plant in the areas around the test points and the drop inspection,
we did not find any infractions on the poles relating to these codes. The following sections address
the categories for violations of physical plant construction that we look for in the public rights-of
way.
4.1.1 Bonding and Grounding
We inspect bonding and grounding according to NEC and NESC and industry standards for the
safety of workers on the aerial and underground cables and at subscriber homes and equipment.
Grounding protects against injury from lightning and surges of excessive electrical current on the
system.
Grounding is required for electrified system components at specified locations along the plant
itself. This is accomplished by bonding the cable plant and equipment to the common neutral
ground of the other utilities on the poles. Alternatively, when there is no other ground, the cable
system is directly grounded with a ground rod at the site where grounding is required. Bonding
creates "the permanent joining of inetallic parts to form an electrically conductive path that '
ensures electrical continuity and the capacity to conduct safely any current likely to be imposed"
(NEC ART. 100). The authorities for reporting these kinds of violations may be found in the
following:
• NEC, Rules 820-33, 820-40; and
• NESC, §092C, §093D, §215, and §239.
No grounding or bonding violations were found during our inspection.
4.1.2 Lashing
In aerial portions of the cable system, the cables are attached to steel cables or "strand" that is
bolted to the poles. A strong thin lashing wire is wrapped around both the cable and strand to
secure the cable to its supporting strand. This practice places the weight of the cable on the strand
rather than on the cable itself.
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Improper lashing can result in undue stress on the cable and connectors, potentially causing signal
quality problems. If the lashing wire breaks and unravels, it usually causes the cable to fall from
its supporting strand toward the ground, thereby reducing clearances over streets, driveways, or
sidewalks and presenting hazards to vehicular and pedestrian traffic.
No loose or broken lashing wires were observed during the inspection.
4.1.3 Construction
The construction category addresses the manner in which the cable system is built. Poor
construction practices are evident in such violations as bolts of improper length, which if too long
create hazards for personnel climbing the poles, or if too short fail to secure the cables to the poles
(NESC §217A4). Other violations in this category include missing bolts, strand that is not
attached to poles, strand that does not have the proper tension, cable supports and spacers that are
missing or improperly installed, and equipment that is improper for the system.
No construction violations were observed in the inspected areas.
4.1.4 Clearances
Clearances of the cables from the ground, streets and sidewalks, and other utilities are specified in
national codes such as the NESC §23 and NESC Tables 232 and 234. All cables on the utility
poles and underground should be placed in a manner to avoid contact with one another. The codes
establish acceptable distances between power, telephone, and other communications lines placed
on the same poles and in the same area in the public rights-of-way or public utility easements.
Proper distance between cable television lines and other utility cables provides a level of safety for
all workers on the poles. The clearance dista.nces from power lines and streets and sidewalks are
established to permit safe and unhindered access to cables on the poles and to avoid obstructions
to vehicular traffic and pedestrians passing under the cables.
No violations were observed in the inspected areas.
4.1.5 Guying and anchoring
In aerial construction, guy wires are necessary to provide additional support to the utility pole
where the weight of cables on the poles is greater than can be safely supported by the poles alone.
Guy wires are required not only for poles that support a large number of cables, but also for poles
supporting very long spans of cable, and on corners or at the end-of-lines where there is also
additional weight on the poles.
Missing or improperly installed guy wires can create a public safety hazard because of a greater
potential for pole failure under stress from high winds, accidents, or pole degradation over time.
The steel cables used to guy the poles must be properly bolted to the poles and anchored in the
ground at prescribed tensions. At ground level, the guy wire itself is required to be covered with a
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. plastic "guard" to alert passersby to the presence of the wire and protect pedestrians from
accidental injury.
The requirements for guy wire violations are documented in NESC Rules 261 B, 261 C, 261 D, and
264.
No violations in this category were observed in the inspected areas.
4.2 Subscriber I)rop-Related Violations
"Drops" are the wires that connect the subscriber homes to the cable system on the street. Under
the NEC, drops are required to meet specific construction standards for attachment to the homes.
These standards have requirements for attachment to the residence, clearance from the ground or
depth of buried cable, and grounding to protect against shock, equipment damage, and fire
hazards. Drop violations include drops from aerial plant down a utility pole to an underground
service connection not being secured to the pole and which may become inadvertently snagged
and disconnected.
Safety is a significant concern in installation and maintenance of drops. For example, a common
operator practice is to place a temporary unburied drop to a home serviced by underground plant.
This can also occur when the ground is frozen or snow covered and cable cannot be buried at the
time of installation. This may be acceptable for a few days, if properly guarded or marked, but
when left exposed for weeks it is not only an annoyance to subscribers but presents a safety hazard
in the public rights-of-way. These situations are also reported as violations. Standards for drop
installation and maintenance are governed by generally accepted industry practices and by the
NEC §250 and §820.
Drop Grounding
During the drop inspection, we found a substantial portion of the accessible subscriber drops
inspected were grounded at the dwelling unit in a manner not provided for in the current electrical
code; however, they were sanctioned in codes prevailing at the time of original insta.llation. The
drops in question represent older homes where the power, telephone and cable enter the property
in different areas of the house. Figure 8 is a photo illustrating a drop grounded to a water pipe
which may or may not be grounded to the power network as required under the current code.
17
Spokane Valley- 2006
Draft
Figure 8: Cable Grounded to Egterior Water Pipe
_
- = -
_
~
.
.
`k • ~ .
' . . < t.:•. . .
_ . . . .
J . _ - .
_ ~
~ - ~
Figure 9 illustrates the common utility entry of newer construction which facilitates common
grounding as required in the existing electrical codes.
Figure 9: Modern Fully-Compliant Cable Drop Installation
. - ,
,
, ,
~ _ -
r ~ .
~ _ .
- + ,roYf _ ~,~i~ ♦t ~ ~
_',;s'1 ' ~ . '~,r " P•`~' • ` 4.
x~ ec-~ r l~i~ ~ t • ~
, _ ~ ' '
-„~,~,ti,. ~ "ti~. ~ ~
18
Spokane Valley- 2006
Draft
Exposed, Broken, or Missing Underground Plant or Equipment
In areas of new construction, we often find exposed, broken, or missing plant or equipment.
Where public utilities are placed underground, cable and related equipment must also be placed
underground. Cables are to be buried at specified depths and at specified dista.nces from public
utilities. When repairs or replacement of the cables is necessary, temporary exposed "jumper"
cables are often installed to maintain service while work to properly install and bury the new
cables is scheduled. When temporary jumper cables are installed, the cables should be marked
with tape or cones to alert the public to the hazard and to protect the public from injury.
Temporary cables must be replaced with properly installed cables as soon as possible.
In other cases, drops may be installed without properly burying the cable in order to facilitate a
subscriber service connection, with the cable operator scheduling burial of the cable for a later
date. These unburied cables also present safety hazards to residents passing by the cables. When
we find this type of installation that has been in place for some time or is unprotected, we report it
as a violation. Temporary cables are addressed in the NESC at §230 A(2)(d).
No violations were observed in the inspected areas.
4.2.1 Drop Clearance
We did not observe any locations where the cable drop had insufficient clearance from power
cables.
Q:\Spokane Valley, WA\Spokane Valley Evaluation report_final 060206.doc
19
Appenclix A
Performance Test igesults
(Spokane Valley, WA Cable Signal Level Test Results)
Headend 04/19/06
CARRIER-TO-NOISE AND HUM PERFORMANCE C/N PERFORMANCE DISTRIBUTION
55
50 ~ • • • • * ~ 10 5/ i
m 45 43d8
~ 40 8 4 / c '
35
Z 30 6~ ~ 3/ ~
0 25 B a ~
20 4 E ~ 2/ ~
. . . . . . . . . . . . . . . . . . 3% ~
to- 15 ,y = - ~
U 10 ~ Z ,
5 ' 0~~~ I 0 0- I//I9I//I/~d~~~/
50 100 150 200 250 300 350 aoo 450 500 550 <35 36 38 40 42 44 46 48 50 52 54>
Frequency (MHz)
Carrier-to-Noise (0)
VIDEO CARRIER LEVELS VIDEO-TO-AUDIO RATIO
. .
i 10 dB 17 d8
20 i 40
i i
i
E i i
m 15 y 30 ~ i i
-y I I C ~ ~ . .
J 10 ~ y ZO c
U 5 I ~ ' ~ t V 10"
olill p -
55 127 175 223 271 319 367 415 463 529 5 7 9 11 13 15 17 19 21 23 25
Frequency (MHz) Level Difference (dB)
ADJACENT CHANNEL DIFFERENCE Carrier-to-Noise
40- , Average 51.1 dB Min. allowable 43 dB
~
35 3 dB
30- ~
~ 25~ Carrier Level Variation
° 20 ' 1I Overall 3.9 dB Max. allowable 13 d6
N C 15 !I Adjacent 2.5 dB Max. allowable 3 dB
5 ~
o 1 2 3 a s s 7 $ 910 Hum
vdeo Carrier Difference (d6) Average 1.08% Max. allowable 3%
AN Ratio
Maximum 16.9 d6 Max. allowable 17 d6 i
Minimum 12.8 dB Min. allowable 10 dB
TP File: HEADSPO 76 7 0.0 0.0
Spokane Valley, WA
Cable Signal Level Test Results
1#033582 Cal Date: 09/27/OS
]Time: Model: SDA-4040 Seria . 0
Operator: ? File: HEADSPO DOS File: I~EAI)SPO :Date: 04/19/06 14:53:00 0.0 0.0
_ - . ~ - .
Description:
.
Location Heade
nd
Channe _ l . Label ~ . Video. . I. Au_:._dio IDelta A/VJ : C/N Hum I Hum .
~ I (dBmV) ~ (dBmV) ~ (dB)_ ~ (dB) (dB)
2 1KREM 1 11.2 . 1 -3.4 1 14.6 1 . . . . . . ~ ,
3 1KAYU 1 11.3 1 -3.9 1 15.2 1
4 1KXLY 1 11.2 1 -4.2 1 15.4 1
51 CITY 1 14.4 1 -0.8 1 15.2 1 ~ 1.1 1 -39.3 '
6 1KHQ 1 119 1 -3.0 1 14.9 ~ 1 .
95 ( FIRE 1 14.7 1 1.9 1 12.8 1 1 .
99 1TVG 1 12.8 1 -2.0 ~ 14.8 1 1
, 141LOCL 1 15.0 1 -1.0 ~ 16.0 1 1 1 '
, 15 JEDAC 1 14.6 1 -0.2 1 14.8 1 1 1
~ 16JEDAC 1 14.1 1 -1.4 1 15.5 1 52.0 1 1
17 JEDAC 1 13.7 ~ -3.2 1 16.9 1
18 JEDAC 1 14.6 -0.5 1 15.1 1
19JEDAC 13.8 1 -1.7 1 15.5 1 201TWC 1 13.6 1 -2.7 1 16.3 1
211 WGN 1 13.1 1 -2.4 1 15.5
22 1KSKN 1 12.7 1 -2.3 1 15.0 1
71KSPS 129 1 -2.1 1 15.0 1 ~ ~ .
8 1KGPX 1 13.4 1 -2.1 ~ 15.5 1
' 91DISC 1 14.9 1 -0.3 1 15.2 1 1 1
: lOIHSN 1 13.2 1 -2.2 1 15.4 1 50.4 1 1
11 JESPN 1 13.1 1 -2.6 1 15.7 1
12JACE 1 12.9 1 -2.2 1 15.1 1
131QVC 1 13.4 1 -2.2 1 15.6 1 ~
23 1NWCN 1 12.9 1 -2.1 1 15.0 1
24 1KQUP 1 13.4 1 -2.3 1 15.7 1
251TVw 1 12.8 1 -Z.o 1 14.8 I I I 26 1KCDT 1 14.1 1 -0.6 1 14.7 1 50.6 1
I
271CSPN 1 12.5 1 -2.5 1 15.0 1 1
. 28 1CSP2 1 13.1 1 -2.4 1 15.5 1 1 1 ~
- 29 1TBN 1 12.8 1 -2.1 ~ 14.9 ~ 1 1
_ 3 01 SPED 1 12.9 1 -1.9 1 14.8 1 1
311 OLN 1 14.1 ~ -1.3 1 15.4 ~ ~ ~
Spokane Valley, WA
Cable Signai Level Test Results
~ eadend
LocationlH
' Channel Label ~ Video I Audio IDelta A/Vl C/N ( Hum ~ Hum
321FSN 1 13.6 1 -2.0 1 15.6 1
33 1 GOLF 1 14.8 1 -1.0 1 15.8 1
34 1ESP2 1 13.7 1 -1.4 1 15.1 1 1 ~
351FOOD 1 14.4 1 -1.6 1 16.0
361TRAV 1 13.7 1 -0.7 1 14.4
. 371HIST 1 14.0 1 -1.8 1 15.8 1 ~ 381TLC 1 13.8 1 -0.9 1 14.7 1 1 3 9 1FAM 12.1 1 -3 . 5 1 15.6 1 40INICK 1 13.5 1 -2.0 15.5 1 51.2 1
41 IDISN 1 11.5 1 -3.3 1 14.8
~ 42 1TOON 1 13.0 1 -2.6 1 15.6 1 43 1APL 1 12.0 1 -3.0 1 15.0 1
44 1CNN 1 13.6 1 -2.2 1 15.8 1
45 1HN 1 11.1 1 -2. 8 1 13.9 1
46 1CNBC 1 13.6 1 -2.3 1 15.9 1
47 1MSNB ~ 12.7 ~ -2.2 ~ 14.9
' 481FOXN 1 13.3 1 -3.2 1 16.5 1 ~ ~ .
49 1CRT 1 13.2 -1.5 1 14.7 1
5 0 1OXYG 1 13.7 1 -2.0 1 15.7 1 1 1 ~
. 511 LIFE ~ 13.7 ~ -2.2 ~ 15.9 ~ 51.5
521A_E 1 13.9 1 -1.7 1 15.6 1
53 1FX-W 1 14.0 1 -2.2 1 16.2 1
54 1TNT 1 13.7 1 -0.2 1 13.9 1 1 1
55 1TBS 1 14.1 1 -2.1 1 16.2 1 561BET 1 13.0 1 -1.9 1 14.9 1 ~
5 7 1 SPIK 1 14.1 1 -1.9 1 16.0 1
58JUSA 1 13.5 1 -1.6 1 15.1 50.3 1
.
59 1SCIF 1 13.6 1 -2.0 1 15.6
601COME 1 13.4 1 -1.9 1 15.3 1
611 CMT ~ 13.6 ~ -1.7 ~ 15.3
~ 62 1VH-1 1 13.8 1 -2.0 15.8 1
. 63 1MTV 1 13.6 1 -1.4 1 15.0 1 51.5 1
64 JETV 1 13.8 1 -2.0 1 15.8 1
65 1BRAV 1 13.8 1 -0.7 1 14.5 1
: 66 1FMC 1 14.1 1 -2.1 1 16.2 1 1 1
67 1AMC 1 13.9 1 -0.7 1 14.6 1 68 1HGTV 1 14.2 1 -0.6 1 14.8 1
691 1 13.1 1 -2.0 ~ 15.1 1
741PIN 1 13.6 1 -1.4 1 15.0 1 1 1
Spokane Valley, WA
Cable Signal Level Test Results
LocationlHeaden-'d-
~ Audio IDelta AM . .C/N I Hum ~ . Hum
Channel Label Video I
741PIN 1 13.6 1 -1.4 1 15.0 1 75 1 IC 1 13.4 1 -2.7 1 16.1 1
' 761TELE 1 13.1 1 -1.8 1 14.9 1 ~
` 77 1HALM 12.7 1 -3.1 1 15.8
78 JACN 12.5 1 -2.8 1 15.3 1
,
(Spokane Valley, WA Cable Signal Level Test Results)
Test Point 1: 14220 East Mission 04/19/06
CARRIER-TO-NOISE AND HUM PERFORMANCE C/N PERFORMANCE DISTRIBUTION
55
50 10 5' ~
■ ' a3dB
m 45
° 40 s ^ 4
c
vi 35
~
~
Z ao s a a 3/ ~
a 25 E W ,
d zo a~ ~ 2 / ;
'
N 15 H = - i
~ - - - - - - - - - - - - - - - - - - - - 39'0 :
' 10 2 5 _ 0 0 ~
50 100 150 200 250 300 350 400 450 500 550 <35 36 38 40 42 44 46 48 50 52 54>
Frequency (MHz)
Carrier-to-Noise (d6)
VIDEO CARRIER LEVELS VIDEO-TO-AUDIO RATIO
!s 10 dB 17 d8
~50 ~ Li
cti 20 E 40 15 "1 ~ ~ 30 10 1 7,1 20
• ?
v 5 ~ 10~ 1E I1;i{ 1111111, I ~ 11 1 111p 0
55 127 175 223 271 319 367 415 463 529 5 7 9 11 13 15 17 19 21 23 25
Frequency (MHz) Level Difference (dB)
ADJACENT CHANNEL DIFFERENCE Carrier-to-Noise
40-„ . Average 49.1 dB Min. allowable 43 dB
35- 3 de
30 ~
~ ZS ; Carrier Level Variation
° 20 ' Overall 9.1 dB Max. allowable 13 dB
N C i5 Adjacent 2.7 d6 Max. allowable 3 dB
S
o
0 1 2 3 4 5 6 7 8 9 10 HUm
Vdeo Carrier Difference (dB) Average 0.97% Max. allowable 3%
AN Ratio
Maximum 16.1 dB Max. allowable 17 dB
Minimum 13.0 d6 Min. allowable 10 dB
TP File: TP1 SPO 76 9 0.0 0.0
Spokane Valley, WA
Cable Signal Level Test Results
' Cal Date: 09/27/05
:Model: SDA-40404Seri a1 0033582
~ . , _
Operator: . ~File: TP1 SPO DOS File. TP1 SPO .
. A - , , . . , f-.-~• „s . . . . . . .
Date:04/19/06 jTime: 16:04:17 0.0 0.0
. :
Description
• _ . , _ . . .
. . . . . . - - _ . . . ~ .
=LocationiTe _ . . . . . - .
st Po'nt 1: 14220 East Mission V -
~
Video I Audio lDelta_A/V` C/N I Hum ~ Hum
Channel Label .
(dB)
~ . . . ~ (dBmV)..I.. (dBmV) ~ (dB) (dB)
2 IKREM 1 10.6 1 -3.6 1 14.2 1
31 KAYU 1 10. 81 -3 . 8 1 14.6 1 ~
.
4 1KXLY 1 11.8 1 -4.3 1 16.1 1
5 1CITY 1 13.0 1 -2.4 1 15:4 1 49.4 1 1.0 1 -40.3
6 1KHQ 1 109 1 -4.5 1 15.4 1 1 1
95 1 FIRE 1 13.1 1 0.1 1 13.0 1 1 1 991TVG 1 9.4 1 -5.1 1 14.5 1 1 1
.
141LOCL 1 12.1 1 -4.0 1 16.1 1
15 EDAC 1 12.2 1 -2.3 ~ 14.5 1
, 16 EDAC 11.7 1 -3.4 15.1 ~ 49.6
17 JEDAC 1 11.8 1 -4.1 1 15.9
18 JEDAC 1 12.4 1 -2.5 1 14.9 ~ 1 ~
19 JEDAC 1 12.1 1 -3.1 1 15.2 1 ~
201TWC 1 11.6 1 -4.3 1 15.9 1
211 WGN 1 11.8 1 -3.9 1 15.7 1
22 1KSKN 1 11.2 1 -3.4 1 14.6 1
. 7 1KSPS 1 11.6 1 -3.1 1 14.7 1 1 1, '
: 8 1KGPX 1 12.2 1 -3.1 1 15.3 1 91DISC 1 13.9 1 -1.4 1 15.3 1
lOIHSN 1 12.0 1 -3.0 1 15.0 1 47.1 1 ~
11 JESPN 12.0 ~ -3.6 1 15.6 1
~ 12JACE 11.7 -2.8 1 14.5 1
13 1QVC 1 12.4 1 -2.7 1 15.1 1
g
; 23 1NWCN 1 12.6 -2.8 1 15.4 1 1 ~
' 24 ( KQUP 1 12.6 -2.6 1 15.2 1 1 ~ ' .
~ 25 1TVW 1 13.0 1 -2.3 1 15.3 1 1
26 1KCDT 13.6 ~ -0.5 ~ 14.1 ~ 47.8 1 ~ 271CSPN 1 12.6 -2.6 1 15.2 1
v
. 28 1CSP2 1 13.4 1 -2.1 1 15.5 1
; 291TBN 1 13.5 1 -1.9 1 15.4
: 301 SPED 1 12.9 1 -2.0 1 14.9 1
311 OLN ~ 14.1 1 -1.3 ~ 15.4 ~ ~ ~ :
. Spokane Valley, WA
Cable Signal Levei Test Results
. _
'
',Location 1: 14220 East Miss
iTe's't'Point ion
I ~ ( ~ - - ~ Hum ~Hum : :
. Channel Label Video Audio Delta C/N _
. 321FSN 1 13.9 1 -1.9 1 15•8 1
~ 33 GOLF ~ 14.7 ~-0.4 ~ 15.1
~ 341ESP2 1 13.9 1 -1.0 1 14.9 1
' 351FOOD 1 14.9 1 -0.7 1 15.6 1 ~
' 36 1TRAV 1 14.7 1 -0.6 1 15.3 1 371HIST 1 13.8 -19 ~ 15.7
381TLC 1 13.8 1 -1.1 ~ 14.9 1
: 391FAM 1 12.1 1 -3.0 1 15.1 1
40INICK 1 14.3 1 -1.2 1 15.5 1 48•2 1 ~
~ 41 IDISN 1 12.3 -2.0 1 14.3 1
42 1TOON 14.6 1 -0.7 15.3 1
43 1 APL ~ 14.0 1 -1.5 15.5
44 1CNN 15.2 1 0.1 ~ 15.1 1
451HN 13.5 1 -0.7 1 14.2 1
46 1CNBC 1 15.9 1 0.6 1 15.3 1
47 1MSNB 1 15.5 1 -0.4 15.9 1
48 1FOXN 15.3 1 -0.5 15.8 1
~ 49 1CRT 1 15.6 1 0.6 1 15.0 1
5 0 1OXYG 1 15.5 1 0.4 1 15.1 1
511 LIFE ~ 16.0 ~ 0.4 ~ 15.6 49•7
52 1A_E 1 16.1 1 0.6 1 15.5 1 ~ ~ .
. 531FX-W 1 16.4 1 0.9 1 15.5 1 54 1TNT 1 16.6 1 2.1 1 14.5 1
551TBS 1 15.8 1 1.0 1 14.8 1
561BET 1 15.9 1 0.7 1 15.2 1
5 71 SPIK 1 16.1 1 1.0 1 15.1 1
58JUSA 1 16.5 1 1.1 1 15.4 1 50.1 1 1 .
591 SCIF 1 16.5 1 1.4 1 15.1 1 1 1
~ 60 1COME 1 16.2 1 1.3 1 14.9 1 1 1
61 ~ CMT 1 16.7 ~ 1.8 1 14.9
621VH-1 1 17.0 1 1.7 1 15.3 1
631M1'V 1 17.0 1 2.2 1 14.8 1 50.1 1
64 JETV 1 17.5 1 2.0 1 15.5 1
65 1BRAV 1 179 1 2.9 1 15.0 1
,
: 66 1FMC 1 18.1 1 2.6 1 15.5 1
~ 67 1AMC 1 18.0 1 3.2 1 14.8 1
68 1HGTV 1 18.5 1 4.4 1 14.1 1
691 1 17.8 1 1.9 1 15.9 1 1 74 1PIN 1 18.5 1 2.8 1 15.7 1
~ ~ :
Spokane Valley, WA
Cable Signal Level Test Results
. - - - . .
Location Test Point 1: 14220 East Mission
um
Channel Label ~ viaeo~ ~I Auaio IDelta C/N ~ Hum I H
741P1N 1 18.5 1 2.8 1 15.7
7511C 1 18.3 1 2.6 1 15.7
76 1TELE 1 18.0 1 2.8 1 15.2 1
77 1HALM 1 17.5 1 2.7 1 14.8 1 49.9 1 ~
~
78JACN 1 18.0 1 2.5 1 15.5 1 1 1
(Spokane Valley, WA Cable Signal Level Test Results)
Test Point 2: Robie & 10th 04/20/06
CARRIER-TO-NOISE AND HUM PERFORMANCE C/N PERFORMANCE DISTRIBUTION
55 5 / ,
~ 10 ~
50 s -r ■ ■ + 43dB
pp 45 ~
/ a 40 I 8 ~ 4 35
. `
Z so 6 a a) 3~,
b 25 m
u 20 4 ~ c 2~i ~
_ - i
~ 15- - - - - - - - - - - - - - - - - - - - - 3% ~
V 10 2
5
0 ~-M-- 0 IL
5o too 15o zoo 250 300 35o aoo aso 5o0 550 <35 36 38 40 42 44 46 48 50 52 54>
Frequency (MHz)
Carrier-to-Noise (d6)
VIDEO CARRIER LEVELS VIDEO-TO-AUDIO RATIO
~ i
i I 70 dB 17 dB
~ 50
20" E i-- ~ 40
m 15
~
a~
L
30
J 10
20 ,
a~
~ 5 ,o-
o C tr~ F E p
55 127 175 223 271 319 367 415 463 529 5 7 9 11 13 15 17 19 21 23 25
Frequency (MHz) Level Difference (dB)
ADJACENT CHANNEL DIFFERENCE Carrier-to-Noise
40- . ; Average 49.2 dB Min. allowable 43 d6
35 3 d8
30 ~
C'o zs ; Carrier Level Variation
U ° 20 Overall 7.8 dB Max. allowable 13 d6
10 : Adjacent 3.7 dB Max. allowable 3 dB X
s Not a failure - due to irregularity of leakage channel modulation
0 1 2 3 4 5 6 7 8 9 10 HUm
Vdeo Carrier Diiference (dB) Average 0.91 % Max. allowable 3%
AN Ratio
Maximum 16.2 dB Max. allowable 17 dB
Minimum 11.7 dB Min. allowable 10 d6
i
TP File: TP2_SPO 76 9 0.0 0.0 i
Spokane Valley, WA
Cable Signal Level Test Results
Model: SDA-4040 Serial 0033582 Cal Date: 09/27/05
Operator: ? File: TP2_SPO DOS File: TP2=SPO
Date:04/20/06 ]Time: 11:46:49 0.0 0.0
Description:
Location~Test Point 2: Robie & lOth ~
Channel Label I Video I Audio IDelta A/V1 C/N I Hum I Hum
I I(dBmV) I (dBmV) I (dB) I (dB) I ~(dB)
2 1KREM 1 12.6 1 -3.5 1 16.1 1 1 ~
3 1KAYU 1 10.7 1 -4.0 1 14.7 1 1 ~
4 1KXLY 1 11.6 1 -3.7 15.3 1
5 CITY 1 14.6 ~ -0.2 14.8 1 49.4 ~ 0.9 1 -40.8
6 KHQ ~ 12.9 ~ -2.3 15.2
95 FIRE ~ 15.6 ~ 2.8 12.8
991TVG 1 12.8 1 -1.9 14.7
14 LOCL ~ 14.9 ~ -1.2 ~ 16.1
15 EDAC ~ 14.9 -0.1 ~ 15.0 ~
16JEDAC I 14.1 -1.6 1 15.7 48.6 ~ 17 JEDAC 1 11.0 1 -0.7 1 11.7 1
18JEDAC 1 14.7 1 -1.0 1 15.7 1
19 JEDAC 1 13.5 1 -2.5 16.0 1
20 TWC 1 12.4 ~ -3.1 15.5 1
21 WGN 1 12.4 ~ -3.2 15.6
22 1KSKN 1 12.4 1 -2.1 14.5
71KSPS 1 13.0 1 -1.8 14.8 1 ~
81KGPX 1 13.2 1 -1.6 14.8 1 1
91DISC 15.0 1 0.2 14.8 1 1 1
lOIHSN 13.6 1 -1.2 1 14.8 1 46.5 1 1
11 JESPN 14.0 1 -1.7 1 15.7 1
12JACE 14.0 1 -1.0 15.0 1
13 1QVC 1 14.3 1 -0.6 14.9 1
23 NWCN ~ 14.6 ~ -0.7 15.3 1
24 KQUP ~ 14.7 ~ -0.3 15.0
25 1TVW 1 14.2 1 -0.3 14.5
26 1KCDT 15.7 1 1.2 14.5 48.6
271 CSPN 14.4 1 -0.8 ~ 15.2 1
28 1CSP2 1 15.0 1 -0.2 15.2 1 ~
29 1TBN 1 15.2 1 0.3 14.9 1 ~
301SPED 15.5 1 0.5 15.0 ~
311 OLN 16.3 1 1.0 ~ 15.3 ~
Spokane Valley, WA
Cable Signal Level Test Results
Locationi Test Point 2: Robie & lOth ~
Channel Label Video I Audio IDelta A/Vl C/N Hum I Hum
321FSN 16.2 1 0.4 1 15.8 1 1
3 3 1GOLF 1 17.3 1 1.7 15.6 1 1
34 JESP2 1 16.5 1 1.1 15.4 ~
351FOOD 1 17.1 1 1.4 1 15.7 ~
36 1TRAV 1 17.1 1 1.9 1 15.2 1
37 HIST ~ 16.6 ~ 1.3 1 15.3
38TLC ~ 16.4 ~ 1.8 1 14.6 ~
391FAM 1 14.5 1 -0.7 1 15.2 ~
40 INICK 1 16.5 1 0.6 1 15.9 49.0 1 ~
41 IDISN 14.3 -09 1 15.2 1 1 ~
42 1TOON 15.6 0.4 1 15.2 1 1 ~
43 1 APL ~ 15.4 ~ -0.2 1 15.6
44 1CNN 16.9 2.1 1 14.8
451HN 15.1 0.5 1 14.6
461CNBC 16.8 2.2 1 14.6 1 ~
47 1MSNB 1 16.4 1 1.2 1 15.2 1 ~
481FOXN 1 16.7 0.9 1 15.8 1 ~
49 ( CRT 16.8 2.0 1 14.8 1 ~
501OXYG 17.0 1 1.5 1 15.5 1 ~
511 LIFE ~ 16.9 1 1.0 15.9 1 50.5 ~
521A,E 1 16.7 1 0.9 15.8 1
531FX-W 1 16.3 1 0.5 15.8 1
54 TNT ~ 16.4 ~ 2.2 14.2
55 TBS ~ 16.3 ~ 1.5 1 14.8 ~
56 BET ~ 16.7 ~ 1.1 1 15.6 ~
571 SPIK 1 16.8 1.9 1 149 1 ~
58JUSA 1 16.9 1.3 15.6 49.8
591 SCIF 1 16.7 1.2 15.5
601COME 16.3 1.4 14.9 ~
611 CMT 16.8 ~ 1.8 15.0 ~
621VH-1 17.7 1 1.5 16.2 1
63 1MTV 1 16.7 1 1.9 1 14.8 50.6 1
64 JETV 1 17.2 2.0 1 15.2 1
65 1BRAV 1 17.6 2.9 1 14.7 1 ~
66 1FMC 1 17.6 2.4 1 15.2 1 ~
67 1AMC 18.1 1 3.4 1 14.7 1 ~
68 1HGTV 18.5 4.6 1 13.9 1 ~
691 18.2 2.5 1 15.7 ~
~ .
74 1PIN 18.4 2.8 1 15.6 1
Spokane Valley, WA
Cable Signal Level Test Results
LocationI Test Point 2: Robie & lOth
Channel Label Video I Audio IDelta A/Vl C/N I Hum Hum
74 PIN 18.4 ~ 2.8 ~ 15.6 1 1
75IC ~ 17.5 ~ 2.1 15.4 1 1
76 1TELE 1 18.3 1 2.7 15.6 1 ~
77 HALM ~ 17.5 ~ 2.2 ~ 15.3 ~ 50.1 ~
78 ACN ~ 17.6 ~ 2.1 ~ 15.5 ~ ~ ~ .
(Spokane Valley, WA Cable Signal Level Test Results)
Test Point 3: 10605 E. Buckeye St. 04120/06
CARRIER-TO-NOISE AND HUM PERFORMANCE C/N PERFORMANCE DISTRIBUTION
55
50 10 5 ■ ~ ~ ~ ■ ■ ~
45 * = 43d8
~ 40 8 4 / c '
udi 35
~
Z so s a a 3v~ ~
b zs co ~
d 20 4 3 ~ 2/ i
t`o 15- - - - - - - - - - - - - - - - - - - ~
V 3% ~
10 2
Z
~ I 1 /
5 i
0 0 ~
50 100 150 200 250 300 350 400 450 500 550 p <35 36 38 40 42 44 46 48 50 52 54>
Frequency (MHz)
Carrier-to-Noise (dB)
VIDEO CARRIER LEVELS VIDEO-TO-AUDIO RATIO
~ .
10 dB 17 dP
20 ~ 50
E 40
m 15 cn
30 10 20
~ I 1
~
, f ~ ,.i Ik~ ; ;
' 5 10''
,
o ~ o
55 127 175 223 271 319 367 415 463 529 5 7 9 11 13 15 17 19 21 23 25
Frequency (MHz) Level Difference (dB)
ADJACENT CHANNEL DIFFERENCE Carrier-to-Noise
40 . Average 47.4 dB Min. allowable 43 dB
,
35- 3 d8
30 ~ 25- ~ I Carrier Level Variation
B 20 ' Overall 6.0 dB Max. allowable 13 dB
N C 15 Adjacent 2.7 dB Max. allowable 3 dB
o 1 2 s 4 5 s 7 8 910 Hum
Video Carrier Difference (dB) Average 0.94% Max. allowable 3%
AN Ratio
Maximum 16.7 d6 Max. allowable 17 dB
Minimum 13.6 dB Min. allowable 10 dB
TP File: TP3 SPO 76 9 0.0 0.0
Spokane Vailey, WA
Cable Signal Level Test Results
Moydel• . SDA-4040...
Serial 0033582 Cal Date._ 09/27/_._
~ 05
. . .
~ . . ~
O erator: . File: TP3_SPO DOS File. TP3 PO
:
P S.
~ . ~
Date: 04/20/06 'Time: 13:07:47 0.0 0.0 =
o . . . . . _ . . ~
Descri.. ti
P . . .
LocationiTest Point 3: 10605 E. Buckeye S
. t.
~
: ~ - . . . . ,
' Channel Label Video I Audio iDelta A/Vj C/N ~ Hum I Hum
. ~ (dBmV) ~ (dBmV) ~ (dB) ~ (dB) ~ ~ (dB)
_ . _ .
2 1 KREM . .1 1..9.9 1 . 4.3 1 15.6 1
3 1KAYU 18.7 1 2.9 1 15.8 1 1 ~
4 1KXLY 17.6 1 2.0 1 15.6 1 1 ~
5 1CITY 1 20.4 4.5 1 15.9 1 48.3 1 0.9 1 -40.5
61KHQ 1 17.7 1 2.2 1 15.5 1 1 1
95 1FIRE 1 19.5 1 5.9 1 13.6 1 1 1 ~
~ 991TVG ~ 16.9 1.7 1 15.2 1
l 4 1 LOCL 1 19.3 3.1 1 16.2 1
.
: 15 JEDAC 1 18.5 1 3.8 1 14.7 1 ~ ~ .
16 JEDAC 1 18.2 1 2.6 1 15.6 1 47.7 1 ~
I 17JEDAC 1 17.9 1.2 1 16.7 1
18 JEDAC 1 18.9 3.4 1 15.5 1
19JEDAC 1 17.6 1 2.0 1 15.6 1 1 1 '
.
201TWC 1 16.9 1 1.3 1 15.6 1 211 WGN 1 16.6 ~ 1.2 ~ 15.4
22 1KSKN 1 16.4 1 1.3 ~ 15.1 1
71KSPS 1 16.6 1 1.4 1 15.2 1 1 1
.
, 8 1KGPX 1 16.8 1 1.6 1 15.2 1 1 ~
; 91DISC 1 18.5 1 3.4 15.1 1 1
lOIHSN 1 16.6 1 1.6 1 15.0 45.4 1 1
11 JESPN 1 17.3 1 1.1 16.2 1
12 JACE 1 16.7 1 1.8 1 14.9 1 1 1
. 131QVC 1 17.1 1 2.0 1 15.1 1
23 1NWCN 1 16.8 1 1.5 1 15.3 1
241KQUP 1 16.9 1 1.5 1 15.4 1
251TVW 1 16.4 1 1.6 1 14.8 1
26 1KCDT 1 17.4 1 3.0 1 14.4 1 45.3 1 ~
271CSPN 1 16.0 1 0.9 1 15.1 1
. 281CSP2 1 16.5 0.8 1 15.7 1
29 1TBN 1 16.0 1.1 1 14.9 1
301 SPED 1 16.1 1 1.0 1 15.1 1 1
~
311 OLN 1 16.9 1 1.3 ~ 15.6 1 1
Spokane Valley, WA
Cable Signal Level 1"est Results
. . .
. .
LocationlTest Point 3: 10605 E. Buckeye st.
.
Channel Label ~ Vi.deo ~ Audio IDelta AM C/N I Hum I Hum ~
321FSN 1 16.0 1 0.4 ~ 15.6 1 1 ~ .
33 1GOLF 1 17.5 1 2.0 ~ 15.5
~ 34 JESP2 1 16.8 1 1.1 1 15.7 1 351FOOD 1 16.8 1 1.4 ~ 15.4
361TRAV 16.8 1 1.6 1 15.2 1 371HIST 16.5 1 1.2 1 15.3 1
381TLC 1 16.6 1 1.7 1 14.9 1 1 ~
391FAM 1 14.5 1 -0.2 1 14.7 1 1 ~
40I1vICK 1 16.8 1.1 1 15.7 1 47.4 1 1
41 IDISN 1 14.4 -0.4 1 14.8
42 1TOON 1 16.1 1 0.6 1 15.5 1
~ 43 1 APL 1 15.5 ~ -0.1 1 15.6 1
~ 44 1CNN 1 16.7 1 1.7 1 15.0 1
45 1HN 1 14.5 1 -0.2 1 14.7 1 1 ~
' 46 1 CNBC 1 16.6 1 1.6 1 15.0 1
47 1MSNB 1 16.4 1 1.2 1 15.2 1 1
; 481FOXN 1 16.5 1 0.3 1 16.2 1 1 ~
49 1CRT 1 16.5 1 1.5 1 15.0 1 ~
50 1OXYG 1 16.9 1 1.1 1 15.8 1 1 ~
511 LIFE ~ 16.9 ~ 1.3 ~ 15.6 47.7
: 52 1A_E 1 16.7 1 1.0 1 15.7 1 53 1FX-W 1 16.8 1 0.5 1 16.3 1
54 1TNT 1 16.9 1 2.0 1 149 1
551TBS 1 16.6 1 1.2 1 15.4 1
561BET 1 16.0 1 0.6 15.4 1
57 1 SPIK 1 16.1 1 1.2 14.9 1
. 58JUSA 1 16.2 1 0.5 1 15.7 1 48.6 1
591 SCIF 1 16.1 1 0.5 1 15.6 1 1 '
60 1CONiE 1 15.6 1 0.0 1 15.6 1 1 1 611 CMT ~ 15.7 1 0.1 ~ 15.6
62 1VH-1 1 15.9 1 -0.1 1 16.0 1
: 63 1MTV 1 15.5 1 0.3 1 15.2 1 48.8 1 1
` 64 JETV 1 15.7 1 0.2 1 15.5 1
65 1 BRAV 1 15.6 ~ 1.1 ~ 14.5 66 1FMC 1 16.1 1 0.5 1 15.6 1 1 1
671AMC 1 16.2 1 1.3 ~ 14.9 1 1
' 68 1HGTV 1 16.4 1 2.4 1 14.0 1
691 ~ 15.3 1 0.0 ~ 15.3 1 74 1PIN 1 15.6 1 0.0 1 15.6 1
~ ~ ;
Spokane Valley, WA
Cable Signal Level Test Results
. . . . _ . . . - - - . ~ , . :
LocationlTest Point 3: 10605 E. Buckeye St.
. . _ ~ . . . . .
Channel Label I Video I Audio IDelta Afq C/N I Hum Hum
74 1PIN 1 15.6 1 0.0 1 15.6 1 1
75 1IC ~ 14.9 1 -0.6 1 15.5
~ 76 1TELE 1 15.0 1 -0.3 1 15.3 1
77 1HALM 1 14.6 1 -0.6 1 15.2 1 47.8
~ `
78JACN 1 14.6 1 -1.3 1 15.9 1 1
(Spokane Valley, WA Cable Signal Level Test Results)
Test Point 4: 8th & Joel 04/20/06
CARRIER-TO-NOISE AND HUM PERFORMANCE C/N PERFORMANCE DISTRIBUTION
55
50 10 5
43d6
45 +
~ 40 8 4 ✓ '
c '
v~i 35 (D ;
O L)
Z 30 6 a 3
~ ~ i
a 25 W i
N 20 4 = ` c 2 i ;
to 15. . . . . . . _ _ _ . . . _ . . . . . 3% U 10 2 .
5
0 0
p
50 100 150 200 250 300 350 400 450 500 550 <35 36 38 40 42 44 46 48 50 52 54>
Frequency (MHz)
Carrier-to-Noise (d6)
VIDEO CARRIER LEVELS VIDEO-TO-AUDIO RATIO
10 dB 17 d8 I
20 50
E 40
m 15
~ . .
d
-6 30
~ 10
20
U 5 1 p-1'
oLilf I~E. ,~1: , I o
55 127 175 223 271 319 367 415 463 529 5 7 9 11 13 15 17 19 21 23 25
Frequency (MHz) Level Difference (d6)
ADJACENT CHANNEL DIFFERENCE Carrier-to-Noise
40- • Average 47.9 d6 Min. allowable 43 d6
35 3 de
30 ~
~ 25 Carrier Level Variation
° 20 ' ' Overall 6.6 dB Max. allowable 13 dB
N C 15 10 Adjacent 2.6 dB Max. allowable 3 dB
t
0
0 1 2 3 4 5 6 7 8 9 10 Hum
Vdeo Carrier Difference (d6) Average 1.00% Max. allowable 3%
AN Ratio
Maximum 16.8 dB Max. allowable 17 dB
Minimum 12.7 dB Min. allowable 10 dB
TP File: TP4 SPO 76 9 0.0 0.0
Spokane Valley, WA
Cable Signal Level Test Results
Model .
SDA-4040dSerial 00335
. 82 Cal Date: 09/27/05
'.Operator: ? File: TP4 SPO DOS File: TP4 SPO
0.0 0.0
Date: 04 20 06 ITime: 1.5:48:23 . . - - ' _ .
.
-
Description: _ LocationJTest ~
Point 4: 8th & Joel
Hum um
Channel Label ~ Video ~ Audio Delta A/Vj C/N I ~ H
(dB) ~(dB) ~(dB)
- (dBmV. ) ~ (dBmV) ~
. . _ ~
. . .
21KREM . . 14.2 1 . . _0.5 - - 14.7 1. . . . _ . _ . . ~
3 1KAYU 1 13.9 1 -1.3 1 15.2 1 1 1
4 1KXLY 1 13.6 1 -2.0 1 15.6 1
5 1CITY 1 16.2 1 1.0 15.2 1 48.8 1 1.0 1 -40.0 61KHQ 1 13.8 1 -1.6 1 15.4 1
-951FIRE 1 15.6 1 2.9 1 12.7 1 1 1
991TVG 1 13.5 1 -1.4 1 149
141LOCL 1 16.1 1 0.1 1 16.0
15 JEDAC 1 15.7 1 0.7 1 15.0 1 1 1 .
16 JEDAC 14.8 1 -0.6 1 15.4 1 48.1 1 ~
Y
17 JEDAC 14.6 1 -2.2 1 16.8 ~
18 JEDAC 1 15.9 1 0.4 1 15.5 1 ~
19 JEDAC 1 14.4 1 -0.8 1 15.2 1 1 1 .
201TWC 1 14.1 1 -1.6 1 15.7 1
211 WGN 1 13.9 1 -1.4 1 15.3 1
221KSKN 1 13.9 1 -1.2 1 15.1 1 1
71KSPS 1 14.0 1 -1.1 1 15.1 1 1 1
8 1KGPX 1 14.2 1 -0.9 1 15.1 1 1 1
91DISC 1 16.1 1 0.8 1 15.3 1. 1 1
lOIHSN 1 14.1 1 -0.3 1 14.4 1 44.4 1 1
11 JESPN 1 14.7 1 -0.6 1 15.3 1 1 1
12 JACE 1 14.4 -0.3 1 14.7 1 1
131QVC 1 15.3 0.2 1 15.1 1 1 1 .
23 1NWCN 15.3 1 0.1 1 15.2 1 1
241 KQUP 1 15.4 1 0.3 1 15.1 1 ~ .
25 1TVW 1 15.0 1 0.2 1 14.8 1
26 1KCDT 1 16.0 1 1.6 1 14.4 1 47.0 1 1
27 1CSPN 1 15.3 1 -0.2 1 15.5 1
~ 28 1CSP2 1 15.4 0.2 1 15.2 1
291TBN 1 15.2 1 0.3 1 14.9 1
. 301 SPED 1 15.5 1 0.8 1 14.7 1 1 1
~ 311 OLN ~ 16.4 1 1.1 ~ 15.3 ~ ~ ~ ;
Spokane Valley, WA
Cable Signal Level Test Results
- , . . -
;Location.
_ITest Point 4: 8th & Joel
; Channel Label I Video I Audio IDelta A/Vl C/N I Hum I Hum
: 321FSN 1 15.9 1 0.2 1 15.7 1
33 1GOLF 1 17.1 1 1.7 1 15.4 1
~ 341ESP2 1 16.3 1 1.1 1 15.2 1
351FOOD 1 16.8 1 1.2 15.6 1
361TRAV 1 16.4 1 1.5 1 14.9
371HIST 1 16.2 1 1.0 1 15.2 ~ ~ .
381TI,C 1 16.1 1 1.8 1 14.3
391FAM 1 14.4 1 -0.1 1 14.5 1
40INICK 1 16.9 1 1.6 1 15.3 47.7 1
41 IDISN 1 149 1 0.3 1 14.6 1
42 1TOON 1 17.2 1 1.6 1 15.6 1
43 1 APL 1 16.2 1 1.0 1 15.2
44 1CNN 1 18.0 1 3.2 1 14.8
451HN ~ 16.0 1 1.8 1 14.2
461CNBC 18.2 1 3.3 1 149 1 ~
47 1MSNB 1 18.5 1 2.8 1 15.7 1 ~ ~ .
481FOXN 1 18.2 1 2.2 1 16.0 1 11 1
49 1CRT 1 18.0 1 3.5 1 14.5 1
S01OXYG 1 18.8 1 3.3 1 15.5 1
: 51 ~LIFE 1 18.8 ~ 3.2 1 15.6 ~ 48.2 ~ ~ .
: 521A__E 1 18.8 1 3.2 1 15.6 1 1
53 1FX-W 1 18.7 1 3.1 1 15.6 1 1 54 1TNT 1 18.7 1 4.0 1 14.7 1
SS1TBS 1 18.8 1 3.3 ~ 15.5 1 561BET 1 18.2 1 3.0 1 15.2 1 1
571 SPIK 1 18.8 1 3.5 1 15.3 1
58JUSA 1 18.5 1 3.0 1 15.5 1 49.1 1 ~
.
591 SCIF 1 18.6 1 3.2 1 15.4 1
. 601COME 1 18.1 1 2.9 1 15.2 1 611 CMT ~ 18.9 ~ 3.2 1 15.7 ~
~ 621VH-1 1 18.8 1 3.0 1 15.8 ~ 1 1 63 1MTV 1 18.7 1 3.5 1 15.2 49.0 1 1 ~
64 JETV 1 18.0 1 3.4 1 14.6 1
. 65 1BRAV 1 18.9 1 4.3 1 14.6
66 1FMC 1 19.4 1 4.1 1 15.3 1
~ 67 1AMC 1 19.7 1 4.9 1 14.8 1 ~
681HGTV 1 20.0 1 5.9 1 14.1 11 1 1
691 1 19.5 1 3.9 1 15.6 1
74 1PIN 1 20.1 1 4.7 1 15.4 1
~ ~
Spokane Valley, WA
Cable Signal Level Test Results
. - . . . , ~
: Location iTest Point 4: 8th & Joel N
Channel . Label ~ . Video. ' I Audio IDelta A/VJ - - C/N I Hum I Hum
,
' 74 1PIN 1 20.1 1 4.7 1 15.4 1
7511C ~ 19.2 1 4.1 ~ 15.1 1 ~ ~ .
76 1TELE 1 19.8 1 4.3 1 15.5 1 ~
771HALM 1 19.3 1 4.2 1 15.1 1 48.7 1 ~ .
78JACN 1 18.8 1~ 3.9 1 14.9 1
~ ~ ~
Appendiz B
Drop Inspection Field I)ata
Bolivar
1 - Accessible drop cables
Address In Compliaoce Comment
1422 yes Grounded to power per code
Bannen
1 - Accessible drop cables
Address In Compliance Comment
1322 no Grounded to ground rod
Mallon Avenue 13 - Accessible drop cables
Address In Compliance Comment
14022 yes Grounded to power per code
14016 no Grounded to water pipe/ground wire too
long
14010 yes Grounded to power per code
14006 no Grounded to ground rod
13924 no Grounded to ground rod
13923 ? Grounded to wire entering building
14007 yes Grounded to power
14011 no Grounded to ground rod
14023 no Grounded to ground rod
14120 no Grounded to water pipe
14204 yes Grounded to power
14210 no Grounded to ground rod
14223 no Grounded to water pipe
lOt6 Street
4 - Accessible drop cables
Address In Compliance Comment
12019 yes Grounded to power per code
12005 no Grounded to water pipe
11910 no Ground too long
11909 no Too close to power line
12th Street
3 - Accessible drop cables
Address In Compliance Comment
12005 yes Grounded to power per code
12010 no Grounded to water pipe
12016 no Grounded to water pipe
Perrine Rd. - new construction (see Figure 9) ,
6 - Accessible drop cables
Address In Compliance Comrrient
1200 yes
1212 yes
1218 yes
1308 yes
1322 yes
1311 yes
Appendix C
FCC 'I'echnical Standards
[Revised as of October 1, 2005]
From the U.S. Government Printing Office via GPO Access
TI'I"I,E 47--TELEC0MlVIUlVICATION
CHAPTER I--FEDERAL COMNI[JNICATIONS
COIVIlVIISSION (CONTIIVUED)
PART 76 MUI.TICHANNEI. VIDEO AND CABLE TELEVISION SERVICE
Subpart K T'echnical Standards
Sec. 76.601 Performaoce tests.
(a) The operator of each cable television system shall be responsible for insuring that each such
system is designed, installed, and operated in a manner that fully complies with the
provisions of this subpart.
(b) The operator of each cable television system shall conduct complete performance tests of that
otherwise noted below. The performance tests shall be directed at determining the extent to
which the system complies with all the technical standards set forth in Sec. 76.605(a) and
shall be as follows:
(1) For cable television systems with 1000 or more subscribers but with 12,500 or fewer
subscribers, proof-of-performance tests conducted pursuant to this section shall include
measurements taken at six (6) widely separated points. However, within each cable
system, one additional test point shall be added for every additional 12,500 subscribers or
fraction thereof (e.g., 7 test points if 12,501 to 25,000 subscribers; 8 test points if 25,001
to 37,500 subscribers, etc.). In addition, for technically integrated portions of cable
systems that are not mechanically continuous (i.e., employing microwave connections), at
least one test point will be required for each portion of the cable system served by a
technically integrated microwave hub. The proof-of-performance test points chosen shall
be balanced to represent all geographic areas served by the cable system. At least one-
third of the test points shall be representative of subscriber terminals most dista.nt from
the system input and from each microwave receiver (if microwave transmissions are
employed), in terms of cable length. The measurements may be taken at convenient
monitoring points in the cable network: Provided, that data shall be included to relate the
measured performance of the system as would be viewed from a nearby subscriber
terminal. An identification of the instruments, including the makes, model numbers, and
the most recent date of calibration, a description of the procedures utilized, and a
statement of the qualifications of the person performing the tests shall also be included.
(2) Proof-of-performance tests to determine the extent to which a cable television system
complies with the standards set forth in Sec. 76.605(a) (3), (4), and (5) shall be made on
each of the NTSC or similar video channels of that system. Unless otherwise as noted,
proof-of-performance tests for all other standards in Sec. 76.605(a) shall be made on a
minimum of four (4) channels plus one additional channel for every 100 MHz, or fraction
thereof, of cable distribution system upper frequency limit (e.g., 5 channels for cable
television systems with a cable distribution system upper frequency limit of 101 to 216
MHz; 6 channels for cable television systems with a cable distribution system upper
frequency limit of 217-300 MHz; 7 channels for cable television systems with a cable
distribution upper frequency limit to 300 to 400 MHz, etc.). The channels selected for
testing must be representative of all the channels within the cable television system.
(3) The operator of each cable television system shall conduct semi-annual proof-of-
performance tests of that system, to determine the extent to which the system complies
with the technical standards set forth in Sec. 76.605(a)(4) as follows. The visual signal
level on each channel shall be measured and recorded, along with the date and time of the
measurement, once every six hours (at intervals of not less than five hours or no more
than seven hours after the previous measurement), to include the warmest and the coldest
times, during a 24-hour period in January or February and in July or August.
(4) The operator of each cable television system shall conduct triennial proof-of-performance
tests of its system to determine the extent to which the system complies with the technical
standards set forth in Sec. 76.605(a)(11).
(c) Successful completion of the performance tests required by paragraph (b) of this
section does not relieve the system of the obligation to comply with all pertinent
technical standards at all subscriber terminals. Additional tests, repeat tests, or tests
involving specified subscriber terminals may be required by the Commission or the
local franchiser to secure compliance with the technical standards.
(d) The provisions of paragraphs (b) and (c) of this section shall not apply to any cable
television system having fewer than 1,000 subscribers: Provided, however, that any
cable television system using any frequency spectrum other than that allocated to
over-the-air television and FM broadcasting (as described in Sec. Sec. 73.603 and
73.210 of this chapter) is required to conduct all tests, measurements and monitoring
of signal leakage that are required by this subpart. A cable television system operator
complying with the monitoring, logging and the leakage repair requirements of Sec.
76.614, shall be considered to have met the requirements of this paragraph. However,
the leakage log shall be retained for five years rather than the two years prescribed in
Sec. 76.1706.
Note 1 to Sec. 76.601: Prior to requiring any additional testing pursuant to Sec.
76.601(c), the local franchising authority shall notify the cable operator who will be
allowed thirty days to come into compliance with any perceived signal quality problems
which need to be corrected. The Commission may request cable operators to test their
systems at any time.
Note 2 to Sec. 76.601: Section 76.1717 contains recordkeeping requirements for each
system operator in order to show compliance with the technical rules of this subpart.
Note 3 to Sec. 76.601: Section 76.1704 contains recordkeeping requirements for proof of
performance tests.
Sec. 76.605 Technical standards.
(a) The following requirements apply to the performance of a cable television system as
measured at any subscriber terminal with a matched impedance at the termination point or at the output of the modulating or processing equipment (generally the headend) of the cable
television system or otherwise as noted. The requirements are applicable to each NTSC or
similar video downstream cable television channel in the system:
(1) (i) The cable television channels delivered to the subscriber's terminal shall be capable of
being received and displayed by TV broadcast receivers used for off-the-air reception of
TV broadcast signals, as authorized under part 73 of this chapter; and
(ii) Cable television systems shall transmit signals to subscriber premises equipment on
frequencies in accordance with the channel allocation plan set forth in CEA-542-13:
"Standard: Cable Television Channel Identification Plan," (Incorporated by reference,
see Sec. 76.602). .
(2) The aural center frequency of the aural carrier must be 4.5 MHz - 5 kHz above the
frequency of the visual carrier at the output of the modulating or processing equipment of
a cable television system, and at the subscriber terminal.
(3) The visual signal level, across a terminating impedance which correctly matches the
internal impedance of the cable system as viewed from the subscriber terminal, shall not
be less than 1 millivolt across an internal impedance of 75 ohms (0 dBmv). Additionally,
as measured at the end of a 30 meter (100 foot) cable drop that is connected to the
subscriber tap, it shall not be less than 1.41 millivolts across an internal impedance of 75
. ohms (+3 dBmV). (At other impedance values, the minimum visual signal level, as
viewed from the subscriber terminal, shall be the syuare root of 0.0133 (Z) millivolts and,
as measured at the end of a 30 meter (100 foot) cable drop that is connected to the
subscriber tap, shall be 2 times the square root of 0.00662(Z) millivolts, where Z is the
appropriate impedance value.)
(4) The visual signal level on each channel, as measured at the end of a 30 meter cable drop
that is connected to the subscriber ta.p, shall not vary more than 8 decibels within any six-
month interval, which must include four tests performed in six-hour increments during a
24-hour period in July or August and during a 24-hour period in January or February, and
shall be maintained within:
(i) 3 decibels (dB) of the visual signal level of any visual carrier within a 6 MHz nominal
frequency separation;
(ii) 10 dB of the visual signal level on any other channel on a cable television system of
up to 300 MHz of cable distribution system upper frequency limit, with a 1 dB
increase for each additional 100 MHz of cable distribution system upper frequency
limit (e.g., 11 dB for a system at 301-400 MHz; 12 dB for a system at 401-500 MHz,
etc.); and
(iii) A maximum level such that signal degradation due to overload in the subscriber's
receiver or terminal does not occur.
(5) The rms voltage of the aural signal shall be mainta.ined between 10 and 17 decibels below
the associated visual signal level. This requirement must be met both at the subscriber
terminal and at the output of the modulating and processing equipment (generally the
headend). For subscriber terminals that use equipment which modulate and remodulate
the signal the rms voltage of the aural signal shall be maintained between 6.5 and 17
decibels below the associated visual signal level at the subscriber terminal.
(6) The amplitude characteristic shall be within a range of 2 decibels from 0.75 MHz to 5.0
MHz above the lower boundary freyuency of the cable television channel, referenced to
the average of the highest and lowest amplitudes within these frequency boundaries. The
amplitude characteristic shall be measured at the subscriber terminal.
(7) The ratio of RF visual signal level to system noise shall not be less than 43 decibels. For
class I cable television channels, the requirements of this section are applicable only to:
(i) Each signal which is delivered by a cable television system to subscribers within the
predicted Grade B contour for that signal;
(ii) Each signal which is first picked up within its predicted Grade B contour;
(iii) Each signal that is first received by the cable television system by direct video feed
from a TV broadcast sta.tion, a low power TV station, or a TV translator station.
(8) The ratio of visual signal level to the rms amplitude of any coherent disturbances such as
intermodulation products, second and third order distortions or discrete-frequency
interfering signals not operating on proper offset assignments shall be as follows:
(i) The ratio of visual signal level to coherent disturbances shall not be less than 51
decibels for noncoherent channel cable television systems, when measured with
modulated carriers and time averaged; and
(ii) The ratio of visual signal level to coherent disturbances which are frequency-
coincident with the visual carrier shall not be less than 47 decibels for coherent
channel cable systems, when measured with modulated carriers and time averaged.
(9) The terminal isolation provided to each subscriber terminal:
(i) Shall not be less than 18 decibels. In lieu of periodic testing, the cable operator may
use specifications provided by the manufacturer for the terminal isolation equipment
to meet this standard; and
(ii) Shall be sufficient to prevent reflections caused by open-circuited or short-circuited
subscriber terminals from producing visible picture impairments at any other
subscriber terminal.
(10) The peak-to-peak variation in visual signal level caused by undesired low frequency
disturbances (hum or repetitive transients) generated within the system, or by
inadequate low frequency response, shall not exceed 3 percent of the visual signal level.
Measurements made on a single channel using a single unmodulated carrier may be
used to demonstrate compliance with this parameter at each test location.
(11) As of June 30, 1995, the following requirements apply to the performance of the cable
television system as measured at the output of the modulating or processing eyuipment
(generally the headend) of the system:
(i) The chrominance-luminance delay inequality (or chroma delay), which is the change
in delay time of the chrominance component of the signal relative to the luminance
component, shall be within 170 nanoseconds.
(ii) The differential gain for the color subcarrier of the television signal, which is
measured as the difference in amplitude between the largest and smallest segments of
the chrominance signal (divided by the largest and expressed in percent), shall not
exceed 20%.
(iii) The differential phase for the color subcarrier of the television signal which is
measured as the largest phase difference in degrees between each segment of the
chrominance signal and reference segment (the segment at the blanking level of O
IRE), shall not exceed 10 degrees.
. (12) As an exception to the general provision requiring measurements to be made at
subscriber terminals, and without regard to the type of signals carried by the cable
television system, signal leakage from a cable television system shall be measured in
accordance with the procedures outlined in Sec. 76.609(h) and shall be limited as
follows:
Signal leakage
Frequencies limit Distance in (micro-volt/ meters (m) meter)
Less than and including 54 MHz, and over 216
MHz 15 30
Over 54 up to and including 216 MHz 20 3
(b) Cable television systems distributing signals by using methods such as non-conventional
coaxial cable techniques, non-coaxial copper cable techniques, specialized coaxial cable and
fiber optical cable hybridization techniques or specialized compression techniques or
specialized receiving devices, and which, because of their basic design, cannot comply with
one or more of the technical standards set forth in paragraph (a) of this section, may be
permitted to operate: Provided, That an adequate showing is made pursuant to Sec. 76.7
which establishes that the public interest is benefited. In such insta.nces, the Commission may
prescribe special technical requirements to ensure that subscribers to such systems are
provided with an equivalent level of good quality service.
Note 1: Local franchising authorities of systems serving fewer than 1000 subscribers may
adopt standards less stringent than those in Sec. 76.605(a). Any such agreement shall be
reduced to writing and be associated with the system's proof-of-performance records.
Note 2: For systems serving rural areas as defined in Sec. 76.5, the system may negotiate
with its local franchising authority for standards less stringent than those in Sec. Sec.
76.605(a)(3), 76.605(a)(7), 76.605(a)(8), 76.605(a)(10) and 76.605(a)(11). Any such
agreement shall be reduced to writing and be associated with the system's proof-of-
performance records.
Note 3: The requirements of this section shall not apply to devices subject to the TV interface
device rules under part 15 of this chapter.
Note 4: Should subscriber complaints arise from a system failing to meet Sec. 76.605(a)(6)
prior to December 30, 1999, the cable operator will be required to provide a converter that
will allow the system to meet the standard immediately at the complaining subscriber's
terminal. Further, should the problem be found to be system-wide, the Commission may
order all converters on the system be changed to meet the standard.
Note 5: Should subscriber complaints arise from a system failing to meet Sec. 76.605(a)(10),
the cable operator will be required to remedy the complaint and perform test measurements
on Sec. 76.605(a)(10) containing the full number of channels as indicated in Sec.
76.601(b)(2) at the complaining subscriber's terminal. Further, should the problem be found
to be system-wide, the Commission may order that the full number of channels as indicated
in Sec. 76.601(b)(2) be tested at all required locations for future proof-of-performance tests.
Note 6: No State or franchising authority may prohibit, condition, or restrict a cable system's
use of any type of subscriber equipment or any transmission technology.
Sec.76.609 Measurements.
(a) Measurements made to demonstrate conformity with the performance requirements set forth
in Sec. Sec. 76.601 and 76.605 shall be made under conditions which reflect system
performance during normal operations, including the effect of any microwave relay operated
in the Cable Television Relay (CARS) Service intervening between pickup antenna and the
cable distribution network. Amplifiers shall be operated at normal gains, either by the
insertion of appropriate signals or by manual adjustment. Special signals inserted in a cable
television channel for measurement purposes should be operated at levels approximating
those used for normal operation. Pilot tones, auxiliary or substitute signals, and non-
television signals normally carried on the cable television system should be operated at
normal levels to the extent possible. Some exemplary, but not mandatory, measurement
procedures are set forth in this section.
(b) When it may be necessary to remove the television signal normally carried on a cable
television channel in order to facilitate a performance measurement, it will be permissible to
disconnect the antenna which serves the channel under measurement and to substitute there
for a matching resistance termination. Other antennas and inputs should remain connected
and normal signal levels should be maintained on other channels.
(c) As may be necessary to ensure satisfactory service to a subscriber, the Commission may
require additional tests to demonstrate system performance or may specify the use of
different test procedures.
(d) The frequency response of a cable television channel may be determined by one of the
following methods, as appropriate:
(1) By using a swept frequency or a manually variable signal generator at the sending end
and a calibrated attenuator and frequency-selective voltmeter at the subscriber terminal;
or
(2) By using either a multi-burst generator or vertical interval test signals and either a
modulator or processor at the sending end, and by using either a demodulator and either
an oscilloscope display or a waveform monitor display at the subscriber terminal.
(e) System noise may be measured using a frequency-selective voltmeter (field strength
meter) which has been suita.bly calibrated to indicate RMS noise or average power
level and which has a known bandwidth. With the system operating at normal level
and with a properly matched resistive termination substituted for the antenna, noise
power indications at the subscriber terminal are taken in successive increments of
frequency equal to the bandwidth of the frequency-selective voltmeter, summing the
power indications to obtain the total noise power present over a 4 MHz band centered
within the cable television channel. If it is established that the noise level is constant
within this bandwidth, a single measurement may be taken which is corrected by an
appropriate factor representing the ratio of 4 MHz to the noise bandwidth of the
frequency-selective voltmeter. If an amplifier is inserted between the frequency-
selective voltmeter and the subscriber terminal in order to facilitate this measurement,
it should have a bandwidth of at least 4 MHz and appropriate corrections must be
made to account for its gain and noise figure. Alternatively, measurements made in
accordance with the NCTA Recommended Practices for Measurements on Cable
Television Systems, 2nd edition, November 1989, on noise measurement may be
employed. (f) The amplitude of discrete frequency interfering signals within a cable television
channel may be determined with either a spectrum analyzer or with a frequency-
selective voltmeter (field strength meter), which instruments have been calibrated for
adeyuate accuracy. If calibration accuracy is in doubt, measurements may be
referenced to a calibrated signal generator, or a calibrated variable attenuator,
substituted at the point of ineasurement. If an amplifier is used between the subscriber
terminal and the measuring instrument, appropriate corrections must be made to
account for its gain.
(g) The terminal isolation between any two terminals in the cable television system may
be measured by applying a signal of known amplitude to one terminal and measuring
the amplitude of that signal at the other terminal. The frequency of the signal should
be close to the mid-frequency of the channel being tested. Measurements of terminal
isolation are not required when either:
(1) The manufacturer's specifications for subscriber tap isolation based on a
representative sample of no less than 500 subscribers taps or
(2) Laboratory tests performed by or for the operator of a cable television system on a
representative sample of no less than 50 subscriber taps, indicates that the
terminal isolation standard of Sec. 76.605(a)(9) is met. To demonstrate
compliance with Sec. 76.605(a)(9), the operator of a cable television system shall
attach either such manufacturer's specifications or laboratory measurements as an
exhibit to each proof-of-performance record.
(h) Measurements to determine the field strength of the signal leakage emanated by the
cable television system shall be made in accordance with standard engineering
procedures. Measurements made on frequencies above 25 MHz shall include the
following:
(1) A field strength meter of adequate accuracy using a horizontal dipole antenna
shall be employed.
(2) Field strength shall be expressed in terms of the RMS value of synchronizing peak
for each cable television channel for which signal leakage can be measured.
(3) The resonant half wave dipole antenna shall be placed 3 meters from and
positioned directly below the system components and at 3 meters above ground.
Where such placement results in a separation of less than 3 meters between the
center of the dipole antenna and the system components, or less than 3 meters
between the dipole and ground level, the dipole shall be repositioned to provide a
separation of 3 meters from the system components at a height of 3 meters or
more above ground.
(4) The horizontal dipole antenna shall be rotated about a vertical axis and the
maximum meter reading shall be used.
(5) Measurements shall be made where other conductors are 3 or more meters (10 or
more feet) away from the measuring antenna.
(i) For systems using cable traps and filters to control the delivery of specific
channels to the subscriber terminal, measurements made to determine
compliance with Sec. 76.605(a) (5) and (6) may be performed at the location
immediately prior to the trap or filter for the specific channel. The effects of
these traps or filters, as certified by the system engineer or the equipment
manufacturer, must be attached to each proof-of-performance record.
(j) Measurements made to determine the differential gain, differential phase and
the chrominance-luminance delay inequality (chroma delay) shall be made in
accordance with the NCTA Recommended Practices for Measurements on
Cable Television Systems, 2nd edition, November 1989, on these parameters.
APPENDIX I)
ABOiJT COLUMBIA TEI.ECOM1VIiT1lTICA'I'IONS CORPORATIOle1
Columbia Telecommunications Corporation (CTC) provides telecommunications engineering
support to state and local governments as well as public, non-profit, and educational institutions.
For over 23 years, CTC has provided a wide range of technical planning, engineering design, and
implementation support to clients throughout the United States in the following broad, evolving
areas:
(1) Network Planning, Design, and Implementation;
(2) Cable System Technical Evaluation, including
a System Inspection of Physical Plant, and
e System Performance Testing of Electrical Plant;
(3) Franchise Support, including
• Technical Enforcement and Corrective Action Analysis, and
• Negotiation Support;
(4) Tower Siting Engineering and Analysis;
(5) Intelligent Transportation Systems (ITS) Telecommunications; and
(6) Video/PEG Engineering.
For additional information visit our website at www.internetCTC.com.
MARSH ; CERTIFICATE DF 1NSURANCE CERTIFICATENUMBER
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001094353-os
PRODUCER THIS CERTIFICATE IS ISSUED AS A MATTER OF INFORMATION ONLY AND CONFERS
MARSH USA INC. NO RIGHTS UPON THE CERTIFICATE HOLDER OTHER THAN THOSE PROVIDED IN THE
TV1/0 LOGAN SQUARE POLICY. THIS CERTIFICATE DOES NOT AMEND, EXTEND OR ALTER THE COVERAGE
PHILADELPHIA, PA 19103-2797 AFFORDED BY THE POLJCIES DESCRIBED HEREIN.
Attn: COMCAST.CERTS@MARSH.COM FAX: (212) 948-0360 I COMPANIES AFFORDING COVERAGE
COMPANY
)5194 -ALL-GAVW-06-07 COMC BOTHE WA A DISCOVER PROPERTY 8 CASUALTY INSURANCE COMPANY
INSURED COMPANY
COMCAST OF PENNSYLVANIA/WASHINGTON/ B DISCOVER SPECIALTY INSURANCE COMPANY
WEST VIRGINIA, LP
22025 30TH DRIVE SE COMPANY
BOTHELL, WA 98021 C NATIONAL UNION FIRE INS CO OF PITTSBURGH, PA
COMPANY
D FIDELITY & GUARANTY INS. CO.
,
COVERAGES > _ , _
> Tfiis certifcate supersedes and replaces any.prevwus[~r assued ce~tifi~ate'#o~icy: per~ocl:nated belo~rv;
.
THIS 15 TO CERTIFY THAT POLICIES OF INSURANCE DESCRIBED HEREIN HAVE BEEN ISSUED TO THE INSURED NAMED HEREIN FOR THE POLICY PERIOD INDICATED.
NOTWITHSTANDING ANY REQUIREMENT, TERM OR CONDITION OF ANY CONTRACT OR OTHER DOCUMENT WITH RESPECT TO WHICH THE CERTIFICATE MAY BE ISSUED OR MAY
PERTAIN, THE INSURANCE AFFORDED BY THE POL.ICIES DESCRIBED HEREIN IS SUB.IECT TO ALL THE TERMS, CONDITIONS AND EXCLUSIONS OF SUCH POLICIES_ AGGREGATE
LIMITS SHOWN MAY HAVE BEEN REDUCED BY PAID CLAIMS.
CO TypE OF INSURANCE POLICY NUMBER POLICY EFFECTIVE POLICY EXPIRATION LIMITS
LTR DATE (MMIDD/YY) DATE (MMIDD/YY)
GENERAL LIABIUTY
I GENERAL AGGREGATE $ 25,000,000
A I X I COMMERCIAL GENERAL LIABILITY D002QO0I4$ 12/01/06 12101/07 ~ PRODUCTS - COMPlOP AGG I$ 6,000,000
CLAIMS MADE I X I OCCUR ~ PERSONAL & ADV INJURY Is 1,900,000
I I OWNER'S & CONTRACTOR'S PROT IEACH OCCURRENCE I$ 1,900,000
~ I I FIRE DAMAGE (Any one fine) Is 1,900,000
' X~100,000 SI R MED EXP (Any one person) I$ 10,000
I auroMOSiLE uABwnr.
COMBINED SINGLE LIMIT $ 10,000,000
A I X ANY AUTO D002A00516 (AOS ) 12/01 /06 12/01 /07
A I ALL OWNED AUTOS D002A00517 (MA) 12/01/06 12/01/07 80DILYINJURY
$
E3 I SCHEDULED AUTOS D002A00518 (TX) 12/01/06 12/01/07 (Per person)
HIRED AUTOS BODILY INJURY $
~ NON-OWNED AUTOS (Per accident)
I PROPERTY DAMAGE $
~
GARAGE LIABILITY I AUTO ONLY - EA ACCIDENT I$
ANY AUTO OTHER THAN AUTO ONLY:
I I EACH ACCIDENT I$
I AGGREGATE $
EXCESS LIABILITY I EACH OCCURRENCE I$ 5,000,000
C X I UMBRELLA FORM BE4485800 12/01/06 12/01/07 I AGGREGATE Is 5,000,000
l OTHER THAN UMBRELLA FORM I$
wd(~I<ERS COMPENSATION AND X I ORY LIMITS I I~ER k.:::.
EMPLOYERS LJABIUTY
p D002W00571 (AOS) 12/01/06 12/01/07 IEL EACH ACCIDENT 1$ 2,000,000
p THE PROPRIETOR/ I X I INCL D002W00573 (OR, WI) 12/01/06 12/01/07 IEL DlSEASE-POLICY LIMIT I$ 2,000,000
PARTNERS/EXECUTIVE I I
A OFFICERS ARE: DCCL D002W00572 (NJ) 12/01/06 12/01 /07 EL DISEASE-EACH EMPLOYEEI $ 2,000,000
OTHER
DESCRIPTION OF OPERATIONS/LOCATIONSNEHICLES/SPECIAL ITEMS ~
CERTIFICATE HOLDER IS INCLUDED AS ADDITIONAL INSURED AS RESPECTS THE GENERAL LIABILITY POLICY WHERE REQUIRED BY WRITTEN
CONTRACT WITH THE NAMED INSURED. $100,000 PER OCCURRENCE SELF INSURED RETENTION APPLIES ONLY TO THE ABOVE GENERAL
LIABILITY POLICY.
, :
CERTIFICATE::HOLDER . : : . . >~CANCELLATlON
SHOULD ANY OF THE POLICIES DESCRIBED HEREBJ BE CANC0.L.ED BEFORE THE EXPIRATION DATE THEREOF,
THE MSURER AFFORDING COVERAGE VNLL ENDEAVOR TO MAII 3Q DAYS WRITTEN NOTICE TO THE
CITY OF SPOKANE VALLEY CERTIFICATE HOLDER NAMEO HEREIN, BUT FAILURE TO MAII SUCH NOTICE SHALL dJIPOSE NO OBUGATION OR
11707 EAST SPRAGUE, SUITE 106
SPOKANE VALLEY, WA 99206 l-IABILITY OF ANY KIND UPON THE INSURER AFFORDING COVERAGE, ffS AGENTS OR REPRESENTATIVES, OR THE
' ISSUER OF THIS CERTIFICATE.
MARSH USA INC.
BY: Mary Radaszewski `l'nz2,s-j
_ . _ _
.
. . _ .
. . . , .
:
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: . VA D AS OF~:; 1/30/06