132 Chapter2
Making Adjustments
20. Checking the External ALC for Option 010 or 011
Procedure
1. Switch the analyzer on and let it warm up 30 minutes.
2. Connect the analyzer CAL OUT to the RF INPUT.
CAUTION Use only 75 Ω cables, connectors, or adapters on instruments equipped
with 75 Ω inputs or damage to the input connectors will occur.
3. Press
PRESET, then perform the CAL FREQ and CAL AMPTD
adjustment routines. Refer to “CAL FREQ Adjustment Routine” and
“CAL AMPTD Adjustment Routine” procedures.
It is normal for FREQ UNCAL to appear on the display. This will
disappear after the CAL routines are finished.
Note that if the display shows CAL SIGNAL NOT FOUND, the routines
default settings are not sufficient to find the signal. Press
FREQ, −37,
Hz before performing the CAL routines. This causes the routines to
bypass the CAL signal check.
4. Press CAL STORE on the analyzer.
5. Connect a BNC cable from the RF INPUT to the RF OUTPUT.
6. Press
PRESET, then wait for preset routine to finish.
7. Perform the tracking generator self-cal routine by pressing the
following analyzer keys.
CAL, More 1 of 4, More 2 of 4, CAL TRK GEN
Wait for the completion of the routine (less than 1 minute).
8. Press
CAL STORE.
9. Zero and calibrate the power meter and power sensor as described in
the power meter operation manual.
CAUTION Use only 75 Ω cables, connectors, or adapters on instruments equipped
with 75 Ω inputs or damage to the input connectors will occur.
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