4-5
RF-7800W
TROUBLESHOOTING AND MAINTENANCE
j. Is the operating channel free from interference?
1. Log into the GUI and click Utilities > Spectrum Sweep.
2. Run a sweep with a step of ½ the channel size, ~100 MHz below and above the Channel
Frequency.
3. Disable the Sector Controller (SC) transmitter while sweeping on the Subscriber Station (SS).
k. Is the link properly configured on the SC?
1. (SPMP) Log into the SC GUI and click the name of the link in Provisioning > Subscriber Links.
2. (SPTP) Log into the SC GUI and check Configuration > Link.
3. Subscriber MAC must be the MAC address of the SS radio.
4. Ensure Adaptive Modulation is enabled with the Max DL and UL Burst Rates set to the
appropriate values based on propagation analysis.
l. Is the link properly configured on the SS?
1. Log into the SS GUI and check Configuration > Wireless.
2. SC MAC must be 00:00:00:00:00:00 or the MAC address of the SC radio.
m. Do both radios have the same security configuration?
1. Log into the GUI and check Configuration > Wireless > Traffic Flow Security Configuration.
2. If the Shared Secret Hash values are not the same, the Shared Secret was not entered properly.
4.5 PREVENTIVE MAINTENANCE
Preventive maintenance is the systematic, scheduled care and inspection of equipment to prevent equipment failure
and to reduce downtime. This consists of keeping the equipment clean, dry, and dust-free. Clean equipment using a
soft brush, a moist sponge, and a cloth. Check all hardware for looseness and make sure units are secure. Check all
connectors for debris, damage or corrosion. Ensure protective caps are in place if connectors are not in use. Check
all cables and antennas for damage (cracks, breaks, or strains) and repair or replace as required.
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