User's Manual

RF Exposure
This amplifier and associated exciter constitute a RF transmitting system that both
the FCC and Industry Canada has established RF exposure requirements for.
In order to comply with the RF exposure requirements of both countries the
transmitting antenna must maintain a specific physical separation from all persons.
The antennas for this device usually are mounted on outdoor permanent structures
and the installer must see that the separation distance be maintained. The RF
exposure report was written for one typical power output and antenna gain. If your
situation is different than the one described your minimum separation distance will be
different. RF exposure takes into account many different contributing factors some of
which are: power output, system losses, coax cable losses, and antenna gain.
For a typical installation of a 5 dBi antenna and 3W UHF band (450 to 480 MHz)
transmitter. Operated in a push to talk radio system were the average ratio of
transmit to receive time is limited to 50% the separation distance would be 1.8 meters
or approximately 6 feet. This separation distance also does not take into account any
other transmitters that might be considered co-located at the same site.
An RF exposure report was prepared for this transmitter and in it are the typical
calculations on which the above is based.