274133 cable antenna television system.pdf

F5W61608 USPFO Warehouse Ohio Army National Guard Rev. 0 Defense Supply Center Columbus, Ohio 30 January 2009 Bid Final

CABLE ANTENNA TELEVISION SYSTEM 274133 - 1

SECTION 274133 - CABLE ANTENNA TELEVISION SYSTEM - CATV

PART 1 - GENERAL

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

1.2 SUMMARY

A. Section Includes:

1. CATV equipment using cable television service as the signal source.

2. Distribution components.

B. Related Sections:

1. Division 27 Section "Communications Backbone Cabling" for coaxial, UTP, and fiber-optic cables and connectors.

2. Division 27 Section "Communications Horizontal Cabling" for coaxial, UTP, and fiber-optic cables and connectors.

1.3 DEFINITIONS

A. Agile Receiver: A broadband receiver that can be tuned to any desired channel.

B. A/V: Audio/Visual.

C. Broadband: For the purposes of this Section, wide bandwidth equipment or systems that can carry signals occupying in the frequency range of 54 to 1002 MHz. A broadband communication system can simultaneously accommodate television, voice, data, and many other services.

D. Carrier: A pure-frequency signal that is modulated to carry information. In the process of modulation, the signal is spread out over a wider band. The carrier frequency is the center frequency on any television channel.

E. CATV: Community antenna television. A communication system that simultaneously distributes several different channels of broadcast programs and other information to customers via a coaxial cable.

F. CEA: Consumer Electronics Association.

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G. dBmV: Decibels relative to 1 mV across 75 ohms. Zero dBmV is defined as 1 mV across 75 ohms. dBmV = 20 log 10(V1/V2) where V1 is the measurement of voltage at a point having identical impedance to V2 (0.001 V across 75 ohms).

H. I/O: Input/Output.

I. CATV: Master antenna television. A small television antenna distribution system usually restricted to one or two buildings.

J. RF: Radio frequency.

K. User Interface: End point of Contractor's responsibility for Work of this Section. User interfaces are the 75-ohm co-axial cable on device plates.

1.4 SYSTEM DESCRIPTION

A. System shall consist of service provider, cable television service and a coaxial cable distribution system.

1. Headend equipment shall consist of service provider electronic equipment associated with signal source, signal amplification, and associated signal distribution amplification and equalization.

2. Distribution of direct broadcast satellite-service signals, which includes coordinating with Owner's selected service provider for installation of its dish-type antennas and processing the signals as needed to provide specified services combined into a single-feed point ready for connection into the distribution system. Obtain signal levels and noise and distortion characteristics from service provider as the point of departure for system layout and final equipment selection.

3. Distribution of cable television service signals, which includes coordinating with Owner's selected service provider for installation of cable to the service point ready for connection into the distribution system. Obtain signal levels and noise and distortion characteristics from service provider as the point of departure for system layout and final equipment selection.

4. Cable distribution system consisting of coaxial cables, user interfaces, signal taps and splitters, RF amplifiers, signal equalizers, power supplies, and required hardware, complying with CEA-310-E and CEA-2032 and resulting in performance parameters specified in this Section. System shall be capable of distributing television channels according to CEA-542-B.

B. Hardware Requirements: Use plug-in, modular, solid-state electronic components.

Mount amplifiers and other powered equipment in standard 19-inch cabinet complying with CEA-310-E.

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1.5 PERFORMANCE REQUIREMENTS

A. Minimum acceptable performance of distribution system at all user-interface points shall be as follows:

1. RF Video-Carrier Level: Between 3 and 12 dBmV.

2. Relative Video-Carrier Level: Within 3 dB to adjacent channel.

3. Carrier Level Stability, Short Term: Level shall not change more than 0.5 dB during a 60-minute period.

4. Carrier Level Stability, Long Term: Level shall not change more than 2 dB during a 24-hour period.

5. Channel Frequency Response: Across any 6-MHz channel in the 54- to 220-

MHz frequency range, referenced to video; signal amplitude shall be plus or minus 1 dB, maximum.

6. Carrier-to-Noise Ratio: 45 dB or more.

7. RF Visual Signal-to-Noise Ratio: 43 dB or more.

8. Antenna Combiner Insertion Loss: 40 dB maximum.

9. Signal Power Splitter and Isolation Tap Return Loss: 17 dB maximum.

10. Cable Connectors Attenuation: Less than 0.1 dB.

11. Cross Modulation: Less than minus 50 dB.

12. Carrier-to-Echo Ratio: More than 40 dB.

13. Composite Triple Beat: Less than minus 53 dB.

14. Second Order Beat: Less than minus 60 dB.

15. Terminal Isolation from Television to Television: 25 dB, minimum.

16. Terminal Isolation between Television and FM: 35 dB, minimum.

17. Hum Modulation: 2 percent, maximum.

18. RF FM Carrier Level: 13 to 17 dB below video-carrier level.

19. FM Frequency Response: More than in the 88- to 108-MHz frequency range;

signal amplitude is plus or minus 0.75 dB, maximum.

20. FM Carrier-to-Noise Ratio: More than 24 dB.

1.6 SUBMITTALS

A. Product Data: For each type of product indicated.

B. Shop Drawings: For headend and distribution system. Include plans, elevations, sections, details, and attachments to other work.

1. Show fabrication and installation details for television equipment.

2. Functional Block Diagram: Show single-line interconnections between components for headend and distribution system to user-interface points.

Show cable types and sizes.

3. Dimensioned Plan and Elevations of Headend Equipment: Show access and workspace requirements.

4. Wiring Diagrams: For power, signal, and control wiring.

C. Samples: Full size for each outlet device plate in required color.

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D. Design Calculations: Calculate signal attenuation budget and show calculated line and equipment losses for the system based on the functional block diagram, to show that proposed system layout can be expected to perform up to specification.

Calculate signal strength from sources to headend input points for each CATV grouping. Allowable losses between components and user interface shall be used to determine size and type of coaxial cable.

E. Coordination Drawings: Include dimensioned plan and elevation views of components and enclosures. Show access and workspace requirements.

F. Equipment List: Include each piece of equipment and include model number, manufacturer, serial number, location, and date of original installation. Insert testing record of each piece of adjustable equipment, listing name of person testing, date of test, and description of as-left set points.

G. Field quality-control reports.

H. Operation and Maintenance Data: For headend and distribution system to include in emergency, operation, and maintenance manuals.

1.7 QUALITY ASSURANCE

A. Electrical Components, Devices, and Accessories: Listed and labeled as defined in NFPA 70, by a qualified testing agency, and marked for intended location and application.

1.8 PROJECT CONDITIONS

A. Environmental Limitations: System components shall be equipped and rated for the environments in which they are installed.

B. Environmental Conditions: Capable of withstanding the following environmental conditions without mechanical or electrical damage or degradation of operating capability:

1. Interior, Controlled Environment: System components, except central-station control unit, installed in temperature-controlled interior environments shall be rated for continuous operation in ambient conditions of 36 to 122 deg F dry bulb and 20 to 90 percent relative humidity, noncondensing.

2. Interior, Uncontrolled Environment: System components installed in non-temperature-controlled interior environments shall be rated for continuous operation in ambient conditions of 0 to 122 deg F dry bulb and 20 to 90 percent relative humidity, noncondensing.

3. Exterior Environment: System components installed in locations exposed to weather shall be rated for continuous operation in ambient conditions of minus 30 to plus 122 deg F dry bulb and 20 to 90 percent relative humidity, Defense Supply Center Columbus, Ohio 30 January 2009 Bid Final

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condensing. Rate for continuous operation when exposed to rain as specified in NEMA 250, winds up to 85 mph and snow cover up to 24 inches.

1.9 COORDINATION

A. Coordinate size and location of raceway system and provisions for electrical power to equipment specified in this Section.

B. Coordinate Work of this Section with requirements of cable television service provider.

C. Coordinate sizes and locations of concrete bases with actual equipment provided.

D. Coordinate installation of roof curbs, equipment supports, and roof penetrations with actual equipment provided.

1.10 MAINTENANCE SERVICE

A. Initial Maintenance Service: Beginning at Substantial Completion, provide 12 months' full maintenance by skilled employees of CATV system Installer. Include quarterly adjusting as required for optimum system performance. Provide parts and supplies the same as those used in the manufacture and installation of original equipment.

B. Continuing Maintenance Proposal: From Installer to Owner, in the form of a standard yearly (or other period) maintenance agreement, starting on date initial maintenance service is concluded. State services, obligations, conditions, and terms for agreement period and for future renewal options.

1.11 EXTRA MATERIALS

A. Furnish extra materials that match products installed and that are packaged with protective covering for storage and identified with labels describing contents. Provide no fewer than one of each item listed below. Deliver extra materials to Owner.

1. Fuses: One for every 10 of each type and rating.

2. Splitters: One for every 10 installed.

3. CATV Distribution Power Amplifiers: One for every 10 of each type installed, but not less than one total.

4. CATV Signal Traps: One for every 10 of each type used, but not less than one total.

5. CATV Attenuators: One for every 10 of each type used, but not less than one total.

6. Cable: 100 feet of each type used.

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PART 2 - PRODUCTS

2.1 SYSTEMS REQUIREMENTS

A. Components: Plug-in, modular, heavy-duty, industrial- or commercial-grade units.

B. Equipment: Silicon-based, solid-state, integrated circuit devices.

C. Power Supply Characteristics: Devices shall be within specified parameters for ac supply voltages within the range of 105 to 130 V.

D. Protect signal cables and connected components against transient-voltage surges by suppressors and absorbers designed specifically for that purpose. Comply with requirements in Division 26 Section "Transient-Voltage Suppression for Low-Voltage Electrical Power Circuits."

E. Provide ac-powered equipment with integral surge suppressors complying with

UL 1449.

F. RF and Video Impedance Matching: Signal-handling components, including connecting cable, shall have end-to-end impedance-matched signal paths. Match and balance devices used at connections where it is impossible to avoid impedance mismatch or mismatch of balanced circuits to unbalanced circuits.

2.2 CATV EQUIPMENT

A. Description: Signal-source components, signal-processing and amplifying equipment, distribution components, and interconnecting wiring. System shall receive, amplify, process, and distribute signals to outlets for receiving sets.

Equipment shall translate UHF channels to VHF channels before distribution to outlets.

B. Identification of Signal Sources Distributed:

1. Channel selection set shall be those channel sets as contracted for by Ohio Army National Guard..

C. CATV System Qualitative and Quantitative Performance Requirements: Reception quality of color-television program transmissions at each system outlet from each service and source shall be equal to or superior than that obtained with performance checks specified in "Field Quality Control" Article, using standard, commercial, cable-ready, multiple A/V input color-television receivers.

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2.3 CATV HEADEND COMPONENTS

A. Headend Equipment: Broadband amplifier, combining networks for receiving television signals and outputting the signals to cable distribution system. Headend component performance specified in this article is minimum acceptable; better performance may be required to comply with minimum acceptable system performance standard in "Performance Requirements" Article.

1. Manufacturers: Subject to compliance with requirements, provide products by one of the following:

a. Blonder Tongue Laboratories, Inc.

b. Channel Master; Part of Andrew Corporation.

c. Scientific-Atlanta, Inc.; a subsidiary of Cisco Systems, Inc.

B. Broadband Amplifier:

1. Manufacturers: Subject to compliance with requirements, provide products by one of the following:

2. Basis-of-Design Product: Subject to compliance with requirements, provide or comparable product by one of the following:

a. Blonder Tongue Laboratories, Inc.

b. Channel Master; Part of Andrew Corporation.

c. Scientific-Atlanta, Inc.; a subsidiary of Cisco Systems, Inc.

3. Frequency Range: 54 to 220 MHz.

4. Frequency Response: Plus or minus 1.0 dB across passband.

5. Maximum Noise: 10 dB.

6. Minimum Return Loss: 16 dB.

7. I/O Impedance: 75 ohms.

2.4 DISTRIBUTION COMPONENTS

A. Signal Power Splitters and Isolation Taps: Metal-enclosed directional couplers with brass connector parts. Where installed in signal circuits used to supply cable-powered amplifiers, power throughput capacity shall exceed load by at least 25 percent.

1. Manufacturers: Subject to compliance with requirements, provide products by one of the following:

a. Blonder Tongue Laboratories, Inc.

b. Channel Master; Part of Andrew Corporation.

c. Scientific-Atlanta, Inc.; a subsidiary of Cisco Systems, Inc.

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2. Return Loss: 17 dB.

3. RFI Shielding: 100 dB.

4. Isolation: 25 dB.

5. I/O Impedance: 75 ohms.

B. Distribution System Amplifiers: Powered by coaxial cable system and equipped with surge protection device and external test points to allow convenient signal monitoring.

1. Manufacturers: Subject to compliance with requirements, provide products by one of the following:

a. Blonder Tongue Laboratories, Inc.

b. Channel Master; Part of Andrew Corporation.

c. Scientific-Atlanta, Inc.; a subsidiary of Cisco Systems, Inc.

C. Cable System Power Supplies: Plug-in, modular construction, with surge, short-circuit, and overload protection.

D. Signal Traps: Packaged filters tuned to interference frequencies encountered in Project.

E. Attenuators: Passive, of fixed value, and used to balance signal levels.

F. Terminating Resistors: Enclosed units rated 0.5 W and matched for coaxial impedance.

G. User-Interface Device: Flush, female-type outlets, designed to mimic power duplex outlet; for mounting in standard outlet box; with metallic parts of anodized brass, beryllium copper, or phosphor bronze. Cable connector mounting shall be semirecessed so its protrusion is flush with the plane of device plate. Feed-through-type cable connection shall not be used.

1. Manufacturers: Subject to compliance with requirements, provide products by one of the following:

a. Blonder Tongue Laboratories, Inc.

b. Channel Master; Part of Andrew Corporation.

c. Scientific-Atlanta, Inc.; a subsidiary of Cisco Systems, Inc.

2. Cable Connector: Female, Type F.

3. Wall Plates: Match materials and finish of power outlets in same space.

4. Attenuation: Less than 0.1 dB.

5. Voltage Standing-Wave Ratio: Less than 1.15 to 1.

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PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine roughing-in for cable TV signal equipment to verify actual locations of cable connections before installation.

B. Examine walls, floors, roofs, equipment bases, and roof supports for suitable conditions where television equipment is to be installed.

C. Proceed with installation only after unsatisfactory conditions have been corrected.

3.2 INSTALLATION

A. Install signal line surge suppressors on coaxial cables entering headend equipment space and at amplifiers.

1. Place and secure anchorage devices. Use setting drawings, templates, diagrams, instructions, and directions furnished with items to be embedded.

2. Install anchor bolts to elevations required for proper attachment to supported equipment.

B. Outdoor connections shall be installed in enclosures meeting NEMA 250, Type 4X.

Connectors shall be corrosion resistant with properly designed O-rings to keep out moisture.

C. Do not use water-based cable pulling lubricants with PVC-jacketed cable.

D. Do not exceed manufacturer’s recommended minimum bending radiuses.

E. Pulling Cable: Do not exceed manufacturer’s recommended pulling tensions. Do not install bruised, kinked, scored, deformed, or abraded cable. Do not splice cable between termination, tap, or junction points. Remove and discard cable if damaged during installation and replace it with new cable.

F. Signal Equalization: Coordinate distribution system component requirements and testing with the Cable Signal Service Provider to provide a balanced signal across the entire system.

G. Install passive circuit devices, such as splitters and attenuators, in wire closets or cabinets. Do not install attenuators as part of user-interface device outlets.

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3.3 HEADEND INSTALLATION

A. Coordinate equipment to facilitate access for maintenance and to preserve headroom and passage space. Parts that require periodic service or maintenance shall be readily accessible. Headend components that require tuning adjustments shall be accessible from the front of equipment cabinets.

B. Arrange equipment to facilitate access for maintenance and to preserve headroom and passage space. Parts that require periodic service or maintenance shall be readily accessible. Headend components that require tuning adjustments shall be accessible from the front of equipment cabinets.

C. Cable Entrance: Use weatherproof entrance fittings, and seal at penetrations of the building envelope.

3.4 IDENTIFICATION

A. Identify system components, wiring, cabling, and terminals. Comply with requirements for identification specified in Division 26 Section "Identification for Electrical Systems."

3.5 FIELD QUALITY CONTROL

A. Manufacturer's Field Service: Engage a factory-authorized service representative to inspect, test, and adjust components, assemblies, and equipment installations, including connections.

B. Perform tests and inspections.

1. Manufacturer's Field Service: Engage a factory-authorized service representative to inspect components, assemblies, and equipment installations, including connections, and to assist in testing.

C. Inspection: Verify that units and controls are properly installed, connected, and labeled, and that interconnecting wires and terminals are identified.

D. Tests and Inspections:

1. Align and adjust system and pretest components, wiring, and functions to verify that they comply with specified requirements.

2. Replace malfunctioning or damaged items.

3. Retest until satisfactory performance and conditions are achieved.

4. Prepare television equipment for acceptance and operational testing.

5. Use an agile receiver and signal strength meter or spectrum analyzer for testing.

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6. CATV Sources: Connect receiver to an agile demodulator or CATV set-top converter at CATV service entrance to the facility.

7. Test Schedule: Schedule tests after pretesting has successfully been completed and system has been in normal functional operation for at least 14 days. Provide a minimum of 10 days' notice of test schedule.

8. Operational Tests: Perform tests of operational system to verify that system complies with Specifications. Include all modes of system operation. Test equipment for proper operation in all functional modes.

9. Distribution System Acceptance Tests:

a. Field-Strength Instrument: Rated for minus 40-dBmV measuring sensitivity and a frequency range of 54 to 812 MHz, minimum. Provide documentation of recent calibration against recognized standards.

b. Signal Level and Picture Quality: Use a field-strength meter or spectrum analyzer, and a standard television receiver to measure signal levels and check picture quality at all user-interface outlets.

1) Test the signal strength in dBmV at 55, 151, 547, and 750 MHz.

2) Minimum acceptable signal level is 0 dBmV (1000 mV).

3) Maximum acceptable signal level over the entire bandwidth is 15 dBmV.

4) Television receiver shall show no evidence of cross-channel intermodulation, ghost images, or beat interference.

10. Signal-to-Noise-Ratio Test: Use a field-strength meter to make a sequence of measurements at the output of the last distribution amplifier or of another agreed-on location in system. With system operating at normal levels, tune meter to the picture carrier frequency of each of the designated channels in turn and record the level. With signal removed and input to corresponding headend amplifier terminated at 75 ohms, measure the level of noise at same tuning settings. With meter correction factor added to last readings, differences from first set must not be less than 45 dB.

11. Qualitative and Quantitative Performance Tests: Demonstrate reception quality of color-television program transmissions at each user interface from each designated channel and source. Quality shall be equal to or superior than that obtained with performance checks specified below, using a standard, commercial, cable-ready, color-television receiver. Level and quality of signal at each outlet and from each service and source shall comply with the following Specifications when tested according to 47 CFR 76:

a. RF video-carrier level.

b. Relative video-carrier level.

c. Carrier level stability, during 60-minute and 24-hour periods.

d. Broadband frequency response.

e. Channel frequency response.

f. Carrier-to-noise ratio.

g. RF visual signal-to-noise ratio.

h. Signal power splitter loss.

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i. Cable connector attenuation.

j. Cross modulation.

k. Carrier-to-echo ratio.

l. Composite triple beat.

m. Second order beat.

n. Terminal isolation.

o. Terminal isolation between television and FM.

p. Hum modulation.

q. RF FM carrier level.

r. FM frequency response.

s. FM carrier-to-noise ratio.

E. Headend and distribution system will be considered defective if they do not pass tests and inspections.

F. Prepare test and inspection reports.

G. For fiber-optic- and UTP-cable performance test, see Division 27 Section "Communications Horizontal Cabling."

H. Cap all unused connectors and seal weathertight.

3.6 DEMONSTRATION

A. Engage a factory-authorized service representative to train Owner's maintenance personnel to adjust, operate, and maintain CATV equipment.

1. Train Owner's maintenance personnel on procedures and schedules for troubleshooting, servicing, and maintaining equipment.

2. Demonstrate methods of determining optimum alignment and adjustment of components and settings for system controls.

END OF SECTION 274133