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Wireless: What type of coaxial cable / length restrictions are required for Tempest antennas?

Wireless: What type of coaxial cable / length restrictions are required for Tempest antennas?

Apr 06, 2019

In the Tempest 2400 reference manual we recommend the following coaxial cable types for extending the standard whip antennas and remote directional antennas:
LMR-400 coaxial cable can be used to remote directional antennas, the recommended maximum length is 25 feet (7.5m).  Typical loss of 15 feet (4.5m) of LMR-400 is approximately 1dB at 2400 MHz. 
LMR-195 coaxial cable can be used for remoting the standard 1/2 wave whip antennas (omini-directional) from the base station.  The recommended maximum length is 10 feet (3m).  Typical loss of 5 feet(1.5m) of LMR-195 is 1 dB at 2400 MHz. 
To make custom length coaxial extension cables the proper connectors to use are RP-TNC (reverse polarized – TNC).
When locating the antennas at distances greater than 25 feet (7.5m), use the optional Tempest Remote Transceiver. The remote transceiver allows locating antennas up to 1,500 feet (450m) away from the BaseStation without the RF signal loss that is associated with using RF cable. Antennas can be mounted directly to the Tempest Remote Transceiver or they can be separated from the remote transceiver using high quality, low loss, 50 Ohm RF cable as described above.


















CCT-RT Remote Transceiver unit


















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