3-15
RF-7800W
SYSTEM ADMINISTRATION AND CONFIGURATION
3.7.2.1 Antenna Power
The radio can power active GPS antennas with an internal 3.3 VDC power supply. The power supply has automatic
short-circuit protection that will protect the radio in the event of an incompatible or broken antenna.
3.7.2.2 Coordinates Format
A number of latitude and longitude datum formats can be selected, depending on a user's preference.
3.7.2.3 GPS Position
If a GPS antenna is properly attached and configured and has good line-of-sight to enough GPS satellites, the
position of the radio is made available.
3.7.2.4 GPS Status
A more detailed overview of the internal GPS module's state can be obtained, which displays the radio's altitude,
GPS-recovered time, and information about the satellites in view of the GPS antenna.
The radio can be configured to send an SNMP trap if the number of GPS Satellites in view is low, or if the number
of GPS satellites in view has been low for 12 hours. Both of these traps could indicate a problem with the GPS
antenna configuration. See Figure 3-10.
Figure 3-10. GPS Status
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