Tektronix SPG8000 Technical Reference page 34

How to adjust the oven oscillator without Option GPS
22
5. Set the reference source to CW as follows:
a. Press the REF button to display the REFERENCE menu.
b. Press the left (◄) or right (►) arrow button to select CW, and then press
the ENTER button.
6. Press the SYSTEM button to display the SYSTEM menu.
7. Press the up (▲) or down (▼) arrow button to select SYSTEM :
CALIBRATE OVEN, and then press the ENTER button.
8. A message will be displayed asking you to verify that you want to execute the
calibration. Press the ENTER button to proceed with the calibration.
9. Verify that the message CALIBRATION result = xxxxxxx is displayed.
The result should be seven characters near the value of 2,097,152. Press the
ENTER button to exit the calibration mode.
10. Verify the calibration:
a. Press the SYSTEM button to display the SYSTEM menu.
b. Press the up (▲) or down (▼) arrow button to select SYSTEM :
DIAGNOSTICS, and then press the ENTER button to access the
DIAGNOSTICS submenu.
c. Press the up (▲) or down (▼) arrow button to select SYSTEM :
DIAGNOSTICS : CALIBRATION.
d. Check that the CAL value is less than 2.5 e
NOTE.
If the CAL value is greater than 2.6 e
to be serviced.
.
-6
, then the oscillator oven may need
-6
SPG8000 Technical Reference