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Operation
Using an 8566B Spectrum Analyzer
3. On the spectrum analyzer, set the preselector DAC to 32 (the center of its 0–63 range)
by pressing
,
SHIFT
4. Set the spectrum analyzer to a frequency span of 0 Hz by pressing
and
.
Hz
NOTE
Due to the repetitive nature of this procedure, it may be helpful to save the
center-frequency settings as indicated in steps 5 and 7 in unused state
registers.
5. Set the spectrum analyzer center frequency to the low end of the band by pressing
CENTER FREQUENCY
then save this setting in an unused register.
for an 11974A: 26.5 GHz
for an 11974Q: 33.0 GHz
for an 11974U: 40.0 GHz
for an 11974V: 50.0 GHz
6. On the rear panel of the 11974, adjust the corresponding potentiometer for the mixer
listed below until one or both of the green LEDs are lit.
for an 11974A: "26.5 GHz SET"
for an 11974Q: "33.0 GHz SET"
for an 11974U: "40.0 GHz SET"
for an 11974V: "50.0 GHz SET"
7. Change the spectrum analyzer center frequency to the high end of the band as indicated
below; then save this setting in an unused register:
for an 11974A: 40 GHz
for an 11974Q: 50 GHz
for an 11974U: 60 GHz
for an 11974V: 75 GHz
8. On the rear-panel of the 11974, adjust the corresponding potentiometer for the mixer
listed below until one or both of the green LEDs are lit.
for an 11974A: "40 GHz SET"
for an 11974Q: "50 GHz SET"
for an 11974U: "60 GHz SET"
for an 11974V: "75 GHz SET"
9. Repeat
step 5
through
additional adjustments.
60
, 32, and
.
GHz
Hz
and entering the corresponding value for the mixer listed below,
step 8
until green lights are lit at both frequencies without any
, 0,
FREQUENCY, SPAN
Chapter 3
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