Tempest basestations are supplied with 2x 1/2 wave whip antennas. These are located directly on the basestation or can be located directly on the CCT-RT Remote transceiver.
The 1/2 wave whip antenna can be remoted from the Basestation or the Remote transceiver - using LMR-195 or LMR-400 cable. We do not recommend using RG58 style cable as the signal loss is too high
To remotely locate Tempest 2400 antennas the use high quality, low loss, 50 Ohm RF
cable terminated with an RP-TNC connector for the BaseStation side
connection and the appropriate antenna mating connector on the other
end. LMR-195 (or equivalent) coaxial cables can satisfactorily be used
in lengths up to 10 feet. (3m)
LMR-400 coaxial cables (or equivalent) can be used at lengths up to
25 feet (7.5m). Longer RF coaxial cable runs are not recommended due to signal attenuation in the cable.
Some important things to remember when placing Tempest antennas:
1. Every antenna has a certain pattern of coverage for which it is
useful. The patterns of both Tempest antennas need to overlap in the
desired coverage area to ensure best RF results.
Don’t point directional antennas in two different directions
Don’t separate omni-directional antennas too far away from each other
2. Both antennas are necessary and equally important. Redundant
Data Transmit 2xTX, transmissions from both antennas must regularly
reach the belt packs to have a robust, successful RF link.