Figure 3.3 Pacific Crest Base Radio Antenna Cable - ashtech Z-Xtreme System Manual

VHF radio, the connector is BNC as shown in Figure 3.3.

Figure 3.3 Pacific Crest Base Radio Antenna Cable

If the base is utilizing an Ashtech SSRadio, the connector is a TNC with reverse polar-
ity. With a standard polarity TNC connector, the pin within the connector is found on
the cable. With a reverse polarity TNC connector, the pin is in the receptacle on the
radio. This difference ensures that the radio antenna cable is not used for the GPS
antenna and visa-versa.
The antenna connector for the Pacific Crest radio is on the back panel, labeled
ANTENNA. The Ashtech SSRadio has its antenna connector located on the front
panel, labeled ANT.
The other end of the cable connects to a connector embedded into a bracket
designed to facilitate the mounting of the base antenna onto the tripod holding the
GPS antenna. The radio antenna itself mounts on the same bracket forming the con-
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