User Manual

Troubleshooting: Transmit ATP – continued

5/21/04 1X SC4812T–MC BTS Optimization/ATP 6-9

DRAFT

Table 6-12: Troubleshooting Rho and Pilot Time Offset Measurement Failure

n ActionStep

3 Re–load BBX data and repeat the test.

4 If performing manual measurement, verify analyzer setup.

5 Verify that no PA in the sector is in alarm state (flashing red LED). Reset the PA by pulling the

circuit breaker and, after 5 seconds, pushing back in.

6 If Rho value is unstable and varies considerably (e.g. .95,.92,.93), this may indicate that the GPS

is still phasing (i.e., trying to reach and maintain 0 freq. error).

Go to the freq. bar in the upper right corner of the Rho meter and select Hz. Press <Shift–avg>

and enter 10, to obtain an average Rho value. This is an indication the GPS has not stabilized

before going INS and may need to be re-initialized.

Cannot Perform Code Domain

Power and Noise Floor

Measurement

Perform the procedure in Table 6-13 to troubleshoot a code domain and

noise floor measurement failure.

Table 6-13: Troubleshooting Code Domain Power and Noise Floor Measurement Failure

n Step Action

1 Verify presence of RF signal by switching to spectrum analyzer screen.

2 Verify PN offset displayed on analyzer is same as PN offset being used in the CDF file.

3 Disable and re-enable MCC (one or more MCCs based on extent of failure).