Installation
RFI-9256 Radio Modem User Manual
Page 10 of 109
3.4 Antenna Installation
Use extreme caution when installing antennas and follow all instructions provided.
Antennas should be placed away from walls and poles as these will affect the radiated pattern and VSWR.
Placing the antenna as high above ground as possible will result in the best communication link.
Antennas in close proximity are potential sources of mutual interference. It is possible that slight
adjustments in antenna placement (as little as 1 meter in either vertically or horizontally) may solve
interference problems.
The use of external antennas subjects the transceiver to greater exposure to direct lightning strikes. STI
Engineering recommends use of lightning surge arrestors to protect all antennas and attached equipment
against lighting strike.
