Sample MATV Specification General Clauses
A Specialist MATV System Contractor shall be contracted to design, supply, install, connect complete, test and commission a television aerial system (the MATV System) capable of receiving and distributing to all specified TV outlets: (Delete as appropriate)
- UHF/VHF/FM band signals
- Satellite (Optus B1) Sky TV and TVNZ Digital Signals
- Other satellite signals (Optus B3, PanAmSat 2, PanAmSat 8, etc)
- Sky TV 3 to 15 (select) channel Head End System
- A DVD Distribution System
- A Video Distribution System
- CCTV Security Camera and Access Control over the MATV System
- IHUG terrestrial or satellite data and TV
The Main Contractor shall, at the time of tender, advise who their Specialist MATV System Contractor will be. The Specialist MATV System Contractor shall be an experienced MATV Commercial Contractor.
Where a digital signal service is specified, it is the responsibility of theSpecialist MATV System Contractorto ensure that the MATV system complies with Sky TV’s and TVNZ’s minimum specified requirements for digital TV services.
The installation is to comply with NZS 6603:1984 “The Design and Installation of Multiple Outlet Distribution Systems for Sound and Television Signals”.
General MATV System Description
The system shall come complete with aerial arrays, satellite dish and all necessary translators, boosters, amplifiers, taps, splitter units, line couplers, SAT/TV dividers, down leads, distribution cables, outlets plates and fixing as necessary for a complete and fully working system.
Leave provision for a Sky TV Head End. If possible, determine if the end user / Body Corporate wishes to comply with Sky TV’s bulk subscription criteria.
MATV System Frequency Capabilities
The MATV system shall support the following frequencies:
- Forward (TV and Data signals) 47-2050 MHz (Satellite L-Band IF: 950-1750 MHz)
- Reverse (Data only) 5-30 MHz
The MATV system shall support at least 55 channels.
Minimum Outlet Signal Strengths on Completion
The MATV system shall, on completion of the installation, have the following minimum signal strengths at each outlet position:
- VHF: 65dBmV ± 5dB AMTV CNR > 43dB. CSO CTB >54dB. No more than 2dBmV between channels and 6dBmV across bands.
- UHF: 65dBmV ± 5dB. AMTV CNR > 43dB. CSO CTB>54dB. No more than 2dBmV between channels and 6dBmV across bands.
- Sky TV- Digital:
- Bit Error Rate: 1X10E-4 or better on all carriers and transponders
- Signal Level: No less than 60dBmV and not to exceed 77dBmV
- Carrier/Noise Ratio: 15dB or better
Pre-installation Signal Level Tests
Carry out and record signal strength and reception quality tests on site at the proposed aerial location to verify signal levels and quality utilising the best available transmission location and provide a basis for the selection of the appropriate aerial and Distribution System.
Main MATV Equipment Locations
The Specialist MATV System Contractor in conjunction with the Architect / Project Manager shall agree the location of all Distribution Panels, amplification, Head End and distribution equipment on site.
Passive equipment associated with the MATV system shall be installed in accessible locations for future maintenance, preferably in a Communication Riser or any other secure Common Area location.
The Electrical Contractor shall supply, install and connect complete the 230 volt outlets necessary to power the MATV system. The Specialist MATV System Contractor shall liaise with the Electrical Contractor and determine the location of the required 230-volt socket outlets. Electrical supply shall be derived from the nearest Common Area distribution board.
Cables and Aerials
The Specialist MATV System Contractor shall utilise where possible in-ground trenches by others.
The Specialist MATV System Contractor shall provide 25mm to 40mm diameter (as required) PVC electrical conduit, run in such a way as to prevent ingress of water. Underground cable must be flooded type.
The Specialist MATV System Contractor shall ensure that the cabling network is designed and installed in accordance with NZS 6603:1984 Clause 8.3 and 8.4
The cabling throughout the installation shall be concealed from view wherever possible.
Distribution cables shall be secured to the communications cable trays (supplied by others) within Communications Risers and ceiling spaces. Cable shall be placed in position in such a way as to avoid hazard or risk of damage. Fixing shall not cause deformation of, or other damage to, the cable. Cable shall be adequately supported or protected where it passes over any obstruction.
The MATV System backbone cables shall be fully supported and distribute through the building via the cable trays (provided by others) within the risers and supported on catenary wires supplied by the Electrical Contractor within the corridor ceiling space.
Any other wiring shall be concealed within the building fabric, down walls to the positions of TV outlet points.
A cabling star configuration shall be used between each residential unit's splitter location and all other TV outlets in that residential unit. (TV Outlets shall not be wired in series). Each main TV outlet shall receive at least two and preferable three RG-6 coaxial cables running from the residential unit's main splitter location.
The distribution cabling shall be tied at regular intervals utilising plastic ties. Staples or pin clips shall not be used.
Coaxial cables shall be segregated from all other electrical services.
Cable types shall be as detailed below or equal and approved. Cable brand shall be Belden or TFC rated to over 2GHz. In all instances the cable types must be suitable/acceptable to Sky TV for digital signal distribution.
- Aerial to Distribution Panel equipment: Coaxial trunk cable type RG11 or RG6 as required.
- Distribution Panel equipment to Passives: Coaxial trunk cable type RG11. If the distance between the Distribution Panel and a Passive is more than 100 meters then use ½ inch Semiflex cable.
- Between Distribution Panels: If the distance between Distribution Panels is more than 300 meters then use fibre-optic cable backbones.
- Passives to Room Outlets: Coaxial dropper cable type RG6 Belden or TFC rated to over 2 GHz
Comply with all minimum cable bend radii as specified by the cable manufacturer. Cable subject to excessive bending, kinked, crimped or otherwise damaged during installation shall be replaced at no additional cost.
All cable shall be run continuously between components of the system. No joints or splices or intermediate connections shall be permitted. A minimum of 300mm tails shall be left for cut off before termination.
If the end user requires Sky TV digital interactive services, then each main TV point (usually in the living room) shall have a telephone cable connection (supplied by the telephone contractor and connected by the Specialist MATV System Contractor)
All Passive devices shall be fitted with a printed label identifying the device.
All cables connecting to a Distribution Panel or within a Riser shall be clearly labeled (with printed permanent labels) to identify its destination and source.
All Distribution Panel covers shall be clearly and permanently labeled “MATV SYSTEM”.
Single Cluster Aerials and Satellite Dish
The aerial array and the satellite dish shall be mounted in a single cluster at a location (or locations) as determined by the Specialist MATV System Contractor in conjunction with the Architect / Project Manager.
The Specialist MATV System Contractor shall liaise with Sky TV on the size of Satellite Receiver (Dish) required, however it is envisaged that a standard “Winegard” 1000 mm-diameter dish will be suitable.
Aerials shall be high quality and high gain, capable of receiving the minimum signal levels as specified herein. Where the maximum received signal levels possible are less than the minimum levels specified (using the largest aerial possible) then a masthead low noise amplifier shall be used to achieve the minimum specified levels.
A combined VHF / UHF aerial shall not be used. Recommended NZ manufacturers for VHF aerials are Strongline, Antronic, Alkris and Quantum. Recommended manufacturers for UHF aerials are Strongline and Hills.
Adjust the aerial to obtain the maximum signal level and minimize ghosting. Aerials shall achieve a minimum level at the input to the distribution amplifier of 65 dBmV and be located to receive the best possible signal quality for the area.
Securely mount the aerials and satellite dish with hardware of appropriate gauge, designed and mounted to withstand a sustained wind velocity of 160 kph and gusts of up to 200 kph without incurring damage or detachment from the mast.
Protect all surfaces exposed as a result of site work, drilling and cutting by approved rust inhibiting treatment.
Waterproof all external surface penetrations as recommended by the product manufacturers specifications.
The Electrical Contractor shall connect the aerials to the Electrical Contractor's lightning protection system as required by the New Zealand Building Code.
Main Distribution Panel MATV Outlets
Main Distribution Panel
Distribution amplifiers shall provide broadband amplification and incorporate adjustable gain and equalisation controls. Gain shall be adequate to provide the specified signal levels with at least 5 dB reserve gain. Noise figures shall be less than 6 dB. No more than three amplifiers shall be in series.
All taps, combiners, filters and splitters shall be ‘F' connector type in shielded metal enclosure with unused ports terminated with 75 ohms terminations and rated to 2050 MHz or better.
Where a Sky Head End of up to 10 channels is specified, then DSB or equal quality modulators shall be used and each free to air channel shall have a single channel amplifier.
Where a Sky Head End of over 10 channels is specified, then VSB or equal quality modulators shall be used and each free to air channel shall have a single channel amplifier with automatic gain control.
TV Connections / Wall Outlets
All connectors and wall plates must use F-type connections and be preferably ‘Radial' crimped with the correct crimping tool for the specific type of connectors used. Twist type connectors are not acceptable. Where connections are susceptible to moisture the connectors must be of a suitable outdoor quality. RG11 connectors must have a separate pin. The centre conductors of the cable may not be used as the connecting pin.
Residential unit TV connection outlets shall be provided on the basis of one outlet per living room and one outlet per bedroom. The quantity of splitters, line couplers and the like required for a complete and fully working system shall be decided by the Specialist MATV System Contractor in order to achieve the minimum signal levels required at each outlet as specified herein.
Outlet modules shall be 75-ohm Belling Lee B/L-F Type for standard TV outlets or “F-F Type” for Satellite TV Outlets.
Each residential unit's main TV outlet, usually in the living room, shall also be provided with an appropriate phone jack or provisional phone cable and complete ‘Out' module or coax cable connected to the residential unit's splitter for potential re-distributing of SKY, DVD or VCR signals to all other TV outlets.
The recessed outlet wall plates shall match the residential unit's power-point fittings in terms of orientation and finish and shall come complete with recessed boxes.
Where TV and Satellite signals share the same cabling, an appropriate Sat/TV separator/duplexer should be used. This duplexer is to provide independent feeds to the TV and the satellite receiver and ideally will be placed in the wall cavity behind the outlet plate.
Visually check subjective picture quality using a high quality portable television receiver.
Signals at all TV connection points shall be of a high quality. When received on normal TV receivers the quality shall not be significantly worse than received “off air” at the distribution panel. The picture shall be free from discernible cross modulation, inter modulation, noise or ghosting.
Test results documenting signal levels and quality at the Aerial, Distribution Amplifiers and at each TV outlet on the system shall be provided by the contractor along with ”As-Built” and Schematic Diagrams of the system in the form of a system operation and maintenance manual
The Specialist MATV System Contractor shall provide a written ONE-YEAR warranty commencing from the completion of the installation and covering the building against all MATV system defects including design, installation and signal losses.
The Specialist MATV System Contractor shall not be responsible for matters pertaining to the quality of signal transmission from source, or for any subsequently constructed or grown obstacles.
Best Trade Practice
Where dissimilar metals are used together provide adequate separation in the form of nylon washers or the like to prevent galvanic reaction.
Mount all external devices in weather tight, UV stabilized enclosures. Use UV stabilized cable and ties in conjunction with PVC tape to securely fasten cables.
Conduit ends, where outside bend downwards to prevent the ingress of water and dust.
Waterproof all external surface penetrations as recommended by the product manufacturers specifications
Back to back recessed outlets shall be avoided to prevent noise transfer between residential units and between rooms, and to comply with Fire Resistant Ratings of fire rated partitions.