
Table 8-3. Reference Messages (7 of 7)
12
(cont'd)
If the Ace. Spec. Deg. is >2 dB, perform steps 1. and 2. again very carefully, pay
close attention to the accuracy of the calibration constants and injection locking.
If the Ace. Spec. Deg. is still >2 dB, press Proceed W/Adj to get an approximate
noise measurement for use in further troubleshooting the problem.
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Peak Tuning Range (Hz)
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Figure 8-8. Phase Lock Loop Bandwidth Relative to the Peak Tuning Range.
13
Establish a beatnote less than or equal to () Hz. System perceives that sources
are not within 5% of the defined Peak Tuning Range. Since the Reference Source is under
manual control, the user is required to establish zerobeat.
Action:
Manually adjust the Reference Source to acquire a beatnote on the analyzer
(on oscilloscope if corrected to the HP 11848A any monitor port) of less than or equal
to the specified frequency.
100 There is no HP 3585A present in the configuration table. If the adjustment of A4C32
is desired, press 'ABORT' at this time and update the configuration table. A4C32 adjusts the
peaking of the LNA above 20 MHz. The HP 3048A only supports the HP 3585A/B for this
adjustment. This adjustment is only required if the LNA or the portion of the A4 board has
been repaired or of the performance of the LNA >20 MHz is in question.
102 'CALDATAHl' and 'CALDATALO' will be restored from disc files. Cal data in memory
is in a unknown state. System will restore cal data from the mass storage media file.
103 NO PRINTER FOUND IN SYSTEM CONFIGURATION. Functional Checks require a
printer be configured in the system.
Action:
Connect a printer to the system, and enter it in the System Configuration Table.
rev.05SEP89 Reference Messaqes 8-27
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