Radio - Radio Antenna; Figure 3.2 Cable Connected To Z-Xtreme Receiver And Geodetic Iv Antenna - ashtech Z-Xtreme System Manual

This cable serves two purposes: it supplies power to the GPS antenna from the
receiver, and it sends the satellite signals observed by the antenna to the receiver.
The GPS antenna cable connects to the Z-Xtreme via a TNC type connector found on
the back panel of the receiver, as shown in Figure 3.2. The proper connector is
labeled GPS.

Figure 3.2 Cable Connected to Z-Xtreme Receiver and Geodetic IV Antenna

The other end of the cable connects to the GPS antenna via either a TNC type or N
type connector depending on which antenna used. A TNC connector is found on the
Geodetic IV antenna. An N type connector is found on the Choke Ring.
The GPS antenna can be connected to the receiver at any time before or after the
receiver is powered on. Make sure the connection at both the receiver and antenna is
tight and not cross-threaded.

Radio - Radio Antenna

The base radio requires the use of an antenna to transmit GPS receiver raw data.
Therefore, the radio antenna must be connected to the radio. This connection is also
accomplished with a coaxial cable although a different type than the GPS antenna
cable. The connectors on the two cables are different, allowing easy differentiation
between the two.
The radio antenna cable connects to the radio via either a TNC or BNC type connec-
tor depending on which type of radio used. If the base radio is a Pacific Crest UHF/
22 Real-Time Kinematic Surveying