5-
On the HP 8753E, press
@GZj
@GG)
:~~~~~~~,-
@
Lc/n
(or @
Lc/nl
for
Option 006).
6. No adjustment is required if the spectrum analyzer measurement is within
the following specifications:
n
&30
kHz for the HP 8753E
n
f60
kHz for the HP 8753e, Option 006
Otherwise, locate the Al2 assembly (red extractors) and adjust the
VCXO ADJ (see
Figure
3-18) for a spectrum analyzer center frequency
measurement within specifications.
7. Replace the
Al2
assembly if you are unable to adjust the frequency as
specified. Repeat this adjustment test.
A12
Reference Assembly
Figure 3-18. Location of the VCXO ADJ Adjustment
Note
To
increase the accuracy of this adjustment, the following steps
are recommended.
8. Replace the instrument covers and wait 10 to 15 minutes in order to allow
the analyzer to reach its precise operating temperature.
9. Recheck the CW frequency and adjust if necessary.
3-50 Adjustments and Correction Constants
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