HP 11848A Service Manual page 44

Phase noise interface
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Service
Model 11848A
HP11848A PHASE NOISE INTERFACE
PHASE
TUNE VOLTAGE
CONDITIONING
DEMODULATOR
OUTPUT
CONDITIONING
H
Figure 4. Noise Measurement with an External Demodulator
UNTUNED
SOURCE
I ' V ^ r t
OETECTOR
\ ^ y
I
INPUTS
HP11848A PHASE NOISE INTERFACE
OUTPUT
CONDITIONING
_J
TUNE VOLTAGE
OUTPUT
PHASE
DETECTOR
OUTPUT TO
HP3561A
INPUT
Figure 5. Noise Measurement with the Interned Phase Demodulator
14

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