HP 8924E, Assembly

Page: 202 / 640

202
Chapter 5, HP 8924C Performance Verification
RF Analyzer FM Distortion Performance Test 23
N:\mkt\MANUALS\HP8924C\ALR\24c_pt.fb
Procedure
1. Access the CONFIGURE screen, and set the
RF Display
field to
Freq
.
2. Access the RF ANALYZER screen, and set the
Tune Mode
field to
Auto
.
3. Set the
Input Por
t field to
Ant
, and set the
IF Filter
field to
230 kHz
.
4. Access the AF ANALYZER screen, and set the
AF Anl In
field to
FM Demod
..
5. Set the
Filter 1
field to
300 Hz HPF
, and set the
Filter 2
field to
3 kHz LPF
.
6. Set the
Detector
field to
Pk+
.
7. Adjust the amplitude of the audio analyzer’s source until the deviation displayed on the
measuring receiver matches the deviation shown in the PTR ( see "RF Analyzer FM
Distortion Performance Test 23" on page 345 ).
8. Read the distortion on the audio analyzer and compare the reading to the limits shown
in the PTR.
Tune Mode To Screen
TX Frequency
TX Power
RF ANALYZER
FM Deviationl
Tune Freq
Input Port
Sensitivity
Input Atten
IF FIlter
RF Cnt Gate
Squelch
Ext TX Key
TX Pwr Meas
TX Pwr Zero
RF ANALYZER
Select Ant
Select Auto
AF Anl In
Filter 1
De-Emphasis
Detector
To Screen
TX Frequency
TX Power
AF ANALYZER
FM Deviation
Filter 2
Settling
Pk Det To
Speaker Vol
Speaker ALC
Scope To
Gain Cntl
Input Gain
Notch Gain
Notch Freq
De-Emp Gain
Audio In Lo
Ext Load R
DC Current
AF Cnt Gate
Select FM Demod
Select 300Hz HPF
AF ANALYZER
Select 230kHz
Select Pk+
Select 3kHz LPF