Leica GPS1200+, Technical Reference Manual, Page: 606 / 1442

Config...\Interfaces... - Controlling Devices 606
24.3 Radios
Description For radios the channels on which the radio broadcasts can be changed. Changing channels
changes the frequency at which the radio operates. The following radios support channel
changing:
Changing radio channels is of interest in three cases.
Requirements for
channel changing
• AT-RXM500 • Satelline 2Asx
• Pacific Crest PDL • Satelline 2AsxE
• Pacific Crest RFM96W • Satelline 3AS
Case 1: Two real-time reference stations are set up at two locations, each broad-
casting on a different channel.
If the signal from one reference station is jammed, the channel can be
changed and the other reference can be used.
Case 2: Set up as in case 1.
Two separate fixes for each point can be obtained, providing redundancy for
future least squares adjustment operations.
Case 3: One real-time reference and one real-time rover are being used.
If the signal is blocked due to radio interference, the channel at the reference
and the rover can be changed in order to work on a different frequency.
Pacific Crest radios: • Channel changing must be activated by a Pacific Crest dealer.
• A special licence might be required.
Satelline radios: The radio must be in programming mode. This can be set by a
Satelline dealer.