HP 83522A User Manual

5-24. ALC GAIN ADJUSTMENT (UPDATES) (Cont'd)
1740A OSCILLOSCOPE
MODE ...................................................... MAIN
CHANNELAINPUT ............................................ AC
.............................................
CHANNEL A V/DIV %V
............................................
CHANNEL B INPUT DC
..............................................
CHANNELBV/DIV 1V
........................................................
DISPLAY A
3. Adjust 1740A vertical and horizontal position knobs for waveform at the center of
oscilloscope CRT. Adjust START knob, below SWP button, for 10 kHz as displayed on
oscilloscope. Turn MODULATION RANGE
Hz to 100 and VERNIER to 10K.
4. Connect equipment as shown in Figure 5-25.
5. On
1740A select A vs B MODE and set CHANNEL A to .OO5/DIV.
6. Adjust the far left side of the signal for 2 divisions pk-pk by using the CAL on the
CHANNEL A knob.
7. While monitoring CHANNEL A, manually sweep the entire plug-in frequency range and
adjust the ALC "GAIN
(A4R15) for 4 divisions of peaking at the plug-in frequency where
the highest gain peaking occurs. (See Figure
5-26a)
4 DIV
ADJUST
'GAIN'
f
2 DIV REF
I
Figure 5-26a. ALC Gain Adjusted Correctly (Worst Case)
UPDATES UPDATES APPLY TO ALL SERIALS

HP 83522A Specifications

General

Brand	HP
Model	83522A
Category	Inverter
Language	English