Eion LibraPlus 5845, User Manual, Page: 124 / 140

Corrective Action Possible Cause Indication
Signal strength is too low High BER • Perform an RSSI test to determine fade margin
• Check for RF absorbent obstacles in the antenna
path
• Search for indirect RF paths between antennas
(i.e. ones that use beneficial reflections or mul-
tipaths)
• Check and replace cables
• Reposition LibraPlus unit or if possible remove
obstruction
Signal strength is too high • Adjust antennas
• Increase distance between units to add attenu-
ation
• Adjust Tx Power level
Interference • Change center frequency
• Increase RF power
• Change polarization of antennas
• Increase separation or change location of an-
tenna
• Increase separation between co-located antennas
Radio Performance(Tx/Rx) • Contact EION, Inc. technical support
Bad CAT-5 cable No Ethernet connec-
tion • Visually inspect cable
• Change cable
Bad connectors • Visually inspect connectors
• Change cable/connectors
Temperature • Determine if ambient operating temperature is
too high or low
• Change ambient temperature to specified range
Bad radio Low signal strength
or fade margin • Bench test system
• Change LibraPlus unit
Poor antenna alignment • Use RF diagnostics to realign antenna
114
Troubleshooting