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MODEL 8559A
ADJUSTMENTS
ADJUSTMENTS
5
-
22.
3.dB
BANDWIDTH ADJUSTMENTS
REFERENCE:
A9 Schematic
DESCRIPTION:
The 3
-
dB bandwidths for the 3 MHz through the 30 kHz RESOLUTION BW settings are adjusted using the
CAL OUTPUT
as
the signal source. The 3
-
dB bandwidths for the 10 kHz, 3 kHz, and
1
kHz RESOLUTION
BW settings are adjusted by injecting
a
stable 321.4 MHz signal into the Third Converter (A10) of the spectrum
analyzer.
SIDNAL DENERATOR
Dl SPLAY
SPECTRUM
ANALYZER
ADAPTER
m
0
OUTPUT
MICROWAVE
COUNTER
l
NPUT
ADAPTER
P
ADAPTER
!EE
STEP
ATTENUATOR
FIGURE
5
-
8.
3
-
dB BANDWIDTH ADJUSTMENTTEST SETUP
EQUIPMENT:
Signal Generator
.........................................................
HP 8640B
Frequency Counter
..........................................................
5342A
StepAttenuator
..........................................................
HP355D
Adapter, Type N
(m)
to BNC
(f)
(2
required)
...............................
HP 1250
-
0780
Extender Cable Assembly
..............................................
HP 5060
-
0303
Test Cable, BNC to SMB
.............................................
HP 85680
-
60093
BNCTee
............................................................
HP1250-0781