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6. To adjust the tracking between the 71000 and the 11974, perform the following steps:
a. Set the spectrum analyzer center frequency by pressing
entering the corresponding start frequency value for the mixer listed below, 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
b. 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"
c. Change the spectrum analyzer center frequency to the stop frequency value
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
d. 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"
e. Repeat
step a
through
additional adjustments.
Chapter 3
Using an 71000 Series Spectrum Analyzer
step d
until green lights are lit at both frequencies without
Operation
with an 70907B, 70909A, or 70910A
and
and
Freq
CENTER
65
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