Functional Block Diagram - Blonder Tongue Laboratories Inc.

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Broadband Specification Guide Analog VHF Off-Air Reception Functionality This system will allow you to distribute a local analog broadcast (standard definition) TV channel that is available in the market. This signal can now be handed off to a traditional coaxial distribution network or a hybrid fiber/coaxial distribution network within the facility. There is almost no where in the continental United States that is incapable of receiving off-air broadcast signals. Since these signals are free to the receiving party, they are often a good basis to start a coaxial distribution plant. In Depth Description The TV broadcast may be from a location some distance away from the property/ reception site. The site must have an antenna mounted on the outside of the building to receive these signals. If there is not adequate reception to hand off to the processor, a pre-amplifier may need to be employed. Since the necessity of a pre-amp can not be determined until a site survey is performed, it is advisable to specify a pre-amplifier, “as required by site survey”. The pre-amplifier is mounted outside on the antenna mast, and requires a separate power supply to be mounted inside the building to power the unit. You must make sure that a power supply is also specified, and that it is the correct power supply for the pre-amplifier. The processor is the piece of electronics that cleans and amplifies the signal that has been received. This unit can convert the received channel to another channel for output onto the system, for example received VHF channel 3 output VHF channel 7. It is common practice to convert desired local UHF channels to nonbroadcast VHF channels in the market. This is done to minimize losses in the distribution and make it easier to construct and manage. When the new channel is combined with other channels in the facility it must be done at the correct level so that the signals do not damage each other. If you pick one product from each category on the next page, you will have all of the components to ensure a working design. Once all of the products are identified, the specifications can be looked up in the specification library at the end of this publication. IMPORTANT NOTE: The Federal government has set February 17, 2009 as the digital cut-off date. This means the current simulcasting of both analog and digital HDTV/SDTV broadcasts will end and only digital broadcasts will be available over the air. 6
Broadband Specification Guide Functional Block Diagram CAUTION: Valid Until February 17, 2009 Digital Transition Deadline. Analog VHF Off-Air Reception A A (ANTENNA) - BTY-5-LB # 4866 (CH 2-6 FM SINGLE CH) - BTY-10-HB # 4867 (CH 7-13 SINGLE CH) - BTY-LP-LB # 4872 (CH 2-6 LOW BAND) - BTY-LP-HB # 4871 (CH 7-13 HIGH BAND) - BTY-LP-BB # 4874 (CH 2-13 BROADBAND) B = ~ ~ B (PRE-AMPLIFIER/POWER SUPPLY) - CMA-b / PS-1526 # 4706/ 1526 (SINGLE CH) - CMA-LB / PS-1536 # 4448-LB/1536 (2-6 LOW BAND) - CMA-HB / PS-1536 # 4448-HB/1536 (7-13 HIGH BAND) - CMA-BB / PS-1536 # 4448-BB/1536 (2-13 BROADBAND) = #__ C C (PROCESSOR) - AP-40-550B # 59802 (AGILE 40 dBmV) (OFF CH Ex 2-3) - W/OPT 14 # 59144 (ON CHANNEL LOCK) (ON CH Ex 2-2) #__ D E D E (COMBINER) - OC-8D COMBINER # 5957 - OC-12D COMBINER # 5953 - OC-24E COMBINER # 5794 - OC-32E COMBINER # 5795 (AMPLIFIER) - RMDA 550-30P # 5500P53 - RMDA 750-30P # 5500P73 - RMDA 860-30P # 5500P83 - RMDA 860-43P # 5500P84 - BIDA 55A-30P # 5800P53 - BIDA 75A-30P # 5800P73 - BIDA 86A-30P # 5800P83 - BIDA 55A-43P # 5800P54 - BIDA 75A-43P # 5800P74 - BIDA 86A-43P # 5800P84 - BIDA 100A-30 # 5800-13 BLONDER TONGUE LABORATORIES INC. OLD BRIDGE, NEW JERSEY 08857 DRAWN ENGINEER 07/16/06 WNW DWG NO. AC-021605C 7 7
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Functional Block Diagram - Blonder Tongue Laboratories Inc.

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