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16.4 Getting Started
Antenna Selection
Installation of the ATSC8 is assumed to be done by trained installers with a strong
understanding of off-air antenna and distribution systems. For reference some information is
offered below:
Some issues to consider when planning an installation and selecting and antenna:
Determine local off air channels
There are multiple web sites which will provide information on available OTA channels by
market.
FCC Reception Maps: http://transition.fcc.gov/mb/engineering/dtvmaps/
Antennaweb.org http://www.antennaweb.org/default.aspx
Note RF transmission frequencies of OTA signals.
Many markets still us VHF frequencies. Determine what frequencies you will be using and
select an antenna(s) accordingly.
16.5 Site Survey
Factors to consider:
Distance from the transmission tower(s)
o Close proximity to a transmission tower does not always guarantee good reception.
Large buildings, mountains, or large bodies of water may create multipath interference.
Multiple transmission towers will probably require multiple antennas.
Use industry standard practices for spacing and combining of signals.
National and local grounding / bonding requirements and lightning protection.
Never work with an antenna near overhead electrical lines or if thundershowers are forecast.
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