VHF-UHF Bi-Directional Amplifier Installation and Users Guide
Installation Guidelines: 4.2 Donor Antenna Installation Guidelines
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4.2 Donor Antenna Installation Guidelines
Accurately determine the azimuth to the donor site. Obtain the donor site
information and approval from the service provider/carrier.
Ensure that the radiation path to the donor site is unobstructed.
Mount the donor antenna at or toward the edge of the roof, in the direction of
the donor site. Avoid having the RF signal from the donor pass above the
location(s) of the service antennas. Normally, the service antennas are
installed behind and below the donor antenna, as viewed from above. This
approach helps avoid interference and feedback to and from the service
antennas.
Normally, mounting the donor antenna higher will allow a less obstructed path
to the donor site. However, in high traffic metro areas, avoid mounting the
donor antenna higher than necessary, as the quality of the donor signal may
become less stable and it is more likely to encounter adjacent filter
interference.
When possible, shield the rear of a donor antenna by locating it so that any
HVAC units and/or penthouse structures are behind the antenna, relative to
the donor site location.
