25
Tempest900 2-Channel Operating Manual
Antenna Congurations
When attaching the supplied ½ Wave Omnidirectional Whip antenna directly to the back of the BaseStation, always ensure that the antenna
is rmly seated, is not cross threaded, and is located away from any metal obstructions. Keep the antenna away from walls or other signicant
structures by at least 24 inches.
To remotely locate antenna, always 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. LMR-400 coaxial cables (or equivalent) can be used at lengths up to 25 feet. Longer RF coaxial cable runs are not
recommended due to signal attenuation in the cable.
When locating the antenna at distances greater than 25 feet, use the optional Tempest Remote Transceiver. The remote transceiver allows
locating antennas up to 1,500 feet away from the BaseStation without the RF signal loss that is associated with using RF cable. The antenna
can be mounted directly to the Tempest Remote Transceiver, or it can be separated from the remote transceiver using high quality, low loss, 50
ohm RF cable as listed above. See the Tempest Remote Transceiver section of this manual for more information on the setup and use of the
remote transceiver.
Option 1
Install the BaseStation in the center of
the area of communication, with antenna
installed on the back of the BaseStation,
having a clear line of sight in all
directions.
Option 2
Install the BaseStation in an
equipment rack (1 RU) and use an
optional LMR-195, a 50 ohm coax
up to 10 ft to mount the antenna
above the equipment rack. (5 ft of
LMR-195 coax induces about 1 dB
of attenuation.)
Option 3
Install the BaseStation in a convenient location and use the
Tempest Remote Transciever connected with CAT 5 cable and RJ-
45 connectors to position antennas in the most suitable location.
To Next Page
Loading...
