Troubleshooting - ADC ClearGain Dual Inline Tower Mounted Amplifier System User Manual

4.1

Troubleshooting

1. Observe and record PDU LED status. Disable or disconnect RF from BTS. Remove any surge
protectors. Disconnect Bias-T from the antenna feedline / hardline / jumper / protector.
2. Multimeter checks:
a. Measure voltage on the Bias-T _______ VDC. Normal is 15 VDC.
b. Measure resistance of the feedline _______ Ohms. Normal is High or Very high Ω
(KΩ/ΜΩ).
3. Antenna/cable analyzer checks. Measure the in-band RL/VSWR of the system ______ dB
or ratio. Check distance to Fault for anomalies.
PDU
PDU
FEED LINE
ADCP-75-214 • Issue 2 • September 2006
FEED LINE
© 2006, ADC Telecommunications, Inc.
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