Dc Fm ( 100 Hz) (Using Hp 8111A Or Hp 8116A) - Agilent Technologies 83620A Service Manual

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DC FM ( 100 Hz) (Using HP 8111A or HP 8116A)
Synthesizer models without 1 GHz capability should use 5 GHz
Note
settings instead of 1 GHz, as indicated in parenthesis.
2. On the synthesizer, press:
(5 GHz)
CW 1 GHz
5 5 5
FREQUENCY
MENU
Tracking Menu Peak RF Always
USER CAL
5
3. On the spectrum analyzer, set:
Center Frequency:
Frequency pan:
Reference Level:
4. Connect the high voltage output (16 V p-p) function generator and set it
as follows:
Function: ine wave
Frequency: 100 Hz
Amplitude: Minimum
5. Center the signal on the spectrum analyzer display by adjusting the center
frequency. Set the spectrum analyzer to maximum hold.
6. On the synthesizer, press:
FM On/Off DC
MOD
5
or for synthesizers with Option 002, press:
FM Menu FM On/Off Ext
MOD
5
(asterisk on)
FM Coupling DC
he function generator must be capable of supplying
Note
16 Vp-p into 50 to obtain sucient FM deviation for this
step.
7. Increase the function generator amplitude until the width of the signal
displayed exceeds eight divisions on the spectrum analyzer. In able 2-29
record PASS if the signal exceeds eight divisions with no unlock or
overmod message on the synthesizer. Record FAIL if not.
HP 8360
Up/Dn ize CW
1 GHz
5 5
1 GHz (5 GHz)
187.5 MHz
10 dBm
(asterisk on)
(asterisk on)
5
(asterisk on)
Performance Tests
Maximum FM Deviation
2-125