Agilent Technologies 8564EC Service Manual page 116

Spectrum analyzers

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7. Use a nonconductive adjustment tool to adjust the FREQ ADJ

control on the A21 OCXO for a frequency counter reading of 0.00 Hz.

8. On the 5334A/B frequency counter, select a 10-second gate time by

now display the difference between the frequency of the INPUT A

signal and 10.0 MHz with a resolution of 0.001 Hz (1 mHz).

9. Wait at least two gate periods for the frequency counter to stabilize,

then adjust the FREQ ADJ control on A21 OCXO for a stable

frequency counter reading of 0.000 Hz ±0.010 Hz.

10.Replace the dust-cap screw to A21 OCXO.

7. 10 MHz Reference Adjustment — OCXO

. The frequency counter should

Manual Adjustment Procedures

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