12.10 MHz Reference Adjustment
3.Press CjCTRL), REAR PANEL , and ensure that the 10 MHz reference is set to
10 MHz INT.
Note | When the 10 MHz reference is set to IO MHz EXT , the TCXO is not operating |
| and warmed up. If the reference is set to 10 MHz EXT , set the reference to |
| 10 MHz INT and allow 30 minutes for the TCXO to warm up. |
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4.Remove dust cap from A15U302, TCXO. The dust cap is toward the rear of the HP 8560A.
5.Adjust 10 MHz ADJ on A15U302 for a frequency counter reading of 300.000000 MHz f30 Hz.
6.Replace the dustcap on A15U302.
Adjustment Procedures