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MODEL
8559A
ADJUSTMENTS
ADJUSTMENTS
5
-
24.
STEP GAlN ADJUSTMENTS
REFERENCE:
A12 Schematic
DESCRIPTION:
REF LEVEL FINE,
0 dB, and
-
12 dB adjustments are properly set and step gains of 10 dB, 20 dB, and
40
dB
are adjusted.
SIGNAL GENERATOR
.
DIGITAL VOLTMETER
l
NPUT
Dl SPLAY
ATTENUATOR
RF
OUTPUT
STEP
ATTENUATOR
FIGURE
5
-
10.
STEP GAlN ADJUSTMENTS TEST SETUP
EQUIPMENT:
.........................................................
Signal Generator HP 8640B
.....................................
Step Attenuator
(1
dB/Step)
HP 355C, Option H80
....................................
Step Attenuator (10 dB/Step)
HP 355D, Option H82
........................................................
Digital Voltmeter HP
3456A
.........................................
Adapter, Type N (m) to BNC
(f)
HP 1250
-
0780
..........................................
Adapter, BNC (m) to SMC (m)
HP
1250-083 1
...........................................
Cable, BNC (m) to Banana Plug
HP 101
11A
..............................................
Extender Cable Assembly HP 5060-0303
......................................
Adapter, BNC
(f)
to Alligator Clips
HP 8120
-
1292