HP 8559A Operation And Service Manual page 81

MODEL 8559A
4-22. INPUT ATTENUATOR ACCURACY (Cont'd)
PROCEDURE:
Connect equipment as shown in Figure
Spectrum Analyzer:
FREQUENCY BAND GHz
TUNING
RESOLUTIONBW
INPUTATTEN
REFERENCELEVEL
REFLEVELFINE
SWEEPTRIGGER
ALTIF
SIGIDENT
BLCLIP
VIDEOFILTER
Signal Generator:
COUNTER MODE
AM
FM
FREQUENCYTUNE
RF
OUTPUTLEVEL
Set step attenuator to 0 dB and use spectrum analyzer TUNING control to center 30 MHz signal from
signal generator on CRT display. Set FREQ SPAN/DIV to 20 kHz, RESOLUTION BW to 10 kHz, and
Amplitude Scale to 1 dB/DIV.
Adjust signal generator OUTPUT LEVEL control to position peak of signal seven divisions above grati-
cule baseline.
Set step attenuator and INPUT A m E N control to settings indicated in Table
deviation of signal peak from reference graticule line set in step 3.
The REFERENCE LEVEL control setting changes by 10 dB for every 10-dB
change in INPUT ATTEN. Do not change the REFERENCE LEVEL setting
after changing the INPUT ATTEN setting.
PERFORMANCE TESTS
and set controls as follows:
4-17
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NOTE
PERFORMANCE TESTS
AUTO
OFF
OFF
OFF
INT EXPAND XlO
OFF
OFF
ON
4-9. For each setting, record