User Manual

Troubleshooting68P09255A57-2

Aug 2002

SC4812ET Optimization/ATP Manual Software Release R16.1.x.x

PRELIMINARY

6-7

Cannot Perform Txmask Measurement

Follow the procedure in Table 6-11 to troubleshoot a TX Mask

Measurement failure.

Table 6-11: Troubleshooting TX Mask Measurement Failure

 Step Action

1 Verify that TX audit passes for the BBX(s).

2 If performing manual measurement, verify analyzer setup.

3 Verify that no LPA in the sector is in alarm state (flashing red LED). Re-set the LPA by pulling

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

Cannot Perform Rho or Pilot Time Offset Measurement

Follow the procedure in Table 6-12 to troubleshoot a rhoand pilot time

offset measurement failure.

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

 Step Action

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

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

3 Re-load MGLI3 data and repeat the test.

4 If performing manual measurement, verify analyzer setup.

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

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

noise floor measurement failure.

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

 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).