User Manual

SNB900 Radio Modem User Guide 17
Configuration and Installation 3
An SNB900 can be installed in a network as a base station, access
point, or repeater.
31.1 Installing an SNB900 as a base
1. If necessary, reconfigure the serial port settings on the unit to
those of the GPS receiver.
Configure the unit as a base with no repeaters, or with one or
two repeaters. Ensure that all units in your network are
configured according to their specific task within the network.
2. Before connecting the power cable:
a. Attach the base antenna onto the mounting pole.
b. Mount the entire antenna assembly on a tripod using the
tripod mounting plate and connect the antenna cable to the
SNB900 radio modem.
c. Attach the antenna cable to the ANTENNA port on the
unit.
3. Connect the power cable from the SNB900 POWER port to an
appropriate 12 V DC power source.
C Caution – Make sure that the polarity is correct when you connect the
power cable. The base radio modem will not turn on if you reverse the
polarity.
4. If the GPS receiver is outputting data, the base should now be in
operation. Check the display on the SNB900 to make sure that
the TRAN (transmitting) message is flashing.
5. Make sure that you are on the correct channel and power output.