ADCP-75-214 • Issue 2 • September 2006

4.1Troubleshooting

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.

FEED LINE

PDU

2.Multimeter checks:

a. Measure voltage on the Bias-T _______ VDC. Normal is 15 VDC.

PDU

b.Measure resistance of the feedline _______ Ohms. Normal is High or Very high Ω (KΩ/ΜΩ).

FEED LINE

3.Antenna/cable analyzer checks. Measure the in-bandRL/VSWR of the system ______ dB or ratio. Check distance to Fault for anomalies.

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© 2006, ADC Telecommunications, Inc.