User's Manual

68P80801E35-B 5/1/2002 19
EBTS System Manual - Vol 2 Troubleshooting
Generation 2 Single Channel BR Station Verification Procedures
4. Enter the command to return all active alarms of the Base Radio. At the
prompt, type:
NOTE
If the command displays alarms, refer to the System
Troubleshooting section for corrective actions.
5. As shown below respectively for 800 MHz Generation 2 Base Radios, the
following command returns the kit numbers of the receiver and all other
modules. At the prompt, type:
Receiver Sensitivity Measurement: Generation 2 Base Radio with RFDS
The receiver sensitivity measurement consists of sending a calibrated RF level of
-113.5dBm to the antenna ports at the top of the rack. This includes the RFDS in
the receive channel and measures the combined performance of the Base Radio
and the RFDS. The R2660 output must be calibrated prior to the taking of this
measurement.
Calibration of the R2660 output level
1. Verify that the R2660 is set to 810MHz and adjust the output power to a level
of -50dBm
2. Calibrate HP438A Power Meter. Refer to the HP users guide that came with
the Meter. Below is a general procedure that can be followed.
2.1 Attach 8481D Power Sensor to the Sensor input on the front of the
437B.
2.2 Attach the included HP 11708A 30dB pad to the Power input on
the front on the 473B.
2.3 Power on the 437B.
field> alarms -ofault_hndlr
field> fc –oplatform