External Mixer Amplitude Adjustment (Non-Option 327); External Mixer Amplitude Adjustment Setup - HP 8562E Service Manual

15. External Mixer Amplitude Adjustment (Non-Option 327)

Al5 RF assembly
IF Input Amplitude Accuracy
The slope of the flatness compensation amplifiers is determined. The user-loaded conversion
losses for K-band are recorded and reset to 30 dB. A 310.7 MHz signal is applied to the power
sensor and the power level of the source is adjusted for a -30 dBm reading. The signal is then
applied to the IF INPUT. The flatness compensation amplifiers are then adjusted (via DACs)
place the displayed signal at the reference level.
MEASUR I NG
RECEIVER
I ; '
I
ATTENUATOR
Figure 2-24. External Mixer Amplitude Adjustment Setup
15. External Mixer Amplitude Adjustment (Non-Option 327)
I
BNC CABLE
FREQUENCY
OUTPUT
SPECTRUM
ANALYZER
( EJ,$ CABLE 1
Adjustment Procedures 2-57