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GENERAL INFORMATION HARDWARE DESCRIPTION
ME7840A OMM 1-3
AUT
POWER
METER
OPTIONAL
SPECTRUM
ANALYZER
SYSTEM
CONTROLLER
(PC)
RF1
STEP
ATTENUATOR
70dB, 10dB/step
POWER
SUPPLY
COMBINER
RF2
OPTIONAL
MODULATION
SYNTHESIZER
-30dB
-30dB
-30dB
OPTIONAL
EXTERNAL
PRE-AMP
N
N
LIMITER
NK
K
K
KKN
N
N
KKKN
N
DIRECT RECEIVER
ACCESS
SCORPION
MS4782D Test Set
EXT I/O
SOURCE 2 SOURCE 1
STEP
ATTENUATORS
70dB, 10dB/step
RF3
FORWAR
D
REVERSE
TRANSFER SWITCH
RECEIVERS
CURRENT PROBE
ANALOG IN
GPIB
GPIB
CONTROL
LINES
OPTIONAL
EXTERNAL
PREAMPLIFIERS
-30dB
100 W
TERMINATION
EXTERNAL
CIRCULATOR
N
NK
K
K
C3
C2
C1
K
K
Indicates coax
j
umper in the as-shipped confi
g
uration
a
1
a
2
b
1
b
2
Figure 1-2. Overall Functional Block Diagram of the Basic Power Amplifier Test System (PATS) with MS4782D Test Set