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ROC800-Series Instruction Manual
Revised Jul-14
Inputs and Outputs
6-15
3.
Verify that Access Points have unique settings for the Network ID
and Channel.
If a duplicate Network ID and Channel exists on the network, a
node may indicate connectivity to a Network but will not appear
in the Discovery list.
A node will not appear on the Access Points Discovery list if there
is a second unit setup as an access point.
4.
If you are still experiencing trouble with a Network Radio Module,
check for any possible physical interference from the environment:
Raise antennas above obstructions like trees or compressors. For
best communication, the antennas must have line of sight.
Mount antennas outside of metal enclosures. Antennas must have
at least 10 feet of vertical separation from other antennas.
Check for mismatched antennas. Avoid using the incorrect
antenna for the frequency of radio. Make sure that the antenna
used is for the frequency range of the radio.
Check if the cable runs are too long or if the cable is of the wrong
type. Less than 3 dB of loss for the entire cable run is
recommended. LMR-400 has 3.8dB of loss per 100 feet. The
recommended maximum is 75 feet.
Waterproof all cable connections. If water gets into the cable, it
can cause high VSWR/antenna reflect power.