Pfer Troubleshooting; Possible Setup Issues; Interpreting Integrity Indicator Values - Agilent Technologies 8960 10 Series Reference Manual

PFER Troubleshooting

PFER Troubleshooting
June 29, 1999

Possible Setup Issues

During remote operation of the Phase and Frequency Error measurement the user should configure the
trigger arm to single, see "SETup:PFERror:CONTinuous" on page 422.
Failure to set trigger arm to single may result in the measurement never giving a result. When trigger arm is
continuous the measurement rearms itself and starts another measurement cycle, during remote operation
the fetch query may not be synchronized to the measurement cycle, see "Measurement States" on page 150.
The Manual Frequency must be offset by +/- 67.7083 kHz in order to measure non-bursted or non-GMSK
modulated signals.
If the Trigger Source is set to RF Rise and the signal measured is not burst modulated the measurement will
wait until aborted or timed out.
If the input signal is more than 10 dB below the Expected Power, see "Expected Power" on page 520 or if the
input signal is below -30 dBm there is not enough power to generate an RF Rise trigger so the measurement
will hang.

Interpreting Integrity Indicator values

See "Integrity Indicator" on page 125.
If the signal has both over range (5) and under range (6) conditions only the over range (5) will be indicated.
Syn Not Found (11) will be returned if the measurement Burst Synchronization is set to Midamble
synchronized and Expected Burst pattern is not set to TSC0 through TSC7, or RACH. see "CALL:BURSt" on
page 239
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