Anritsu ME7840A User Manual
Page 110
USE OF EXTERNAL PREAMPLIFIERS
PREAMPLIFIER OPERATIONS
7-4
ME 7840A OMM
AUT
POWER
METER
OPTIONAL
SPECTRUM
ANALYZER
SYSTEM
CONTROLLER
(PC)
B2
RF1
B1
A1
A2
POWER
SUPPLY
COMBINER
RF2
-30dB
-30dB
N
N
N
K
K
K
K
K
N
N
N
K
K
K
N
N
DIRECT
RECEIVER
ACCESS
SCORPION
Test
Set
(Partially
Shown)
EXT I/O
SOURCE 2
SOURCE 1
STEP
ATTENUATORS
70dB, 10dB/step
RF3
FORWAR
D
REVERSE
RECEIVERS
CURRENT PROBE
TERMINATIONS
ANALOG IN
GPIB
GPIB
CONTROL
LINES
EXTERNAL
HYBRID COUPLER/
COMBINER
PREAMPLIFIERS
N
N
K
K
K
ATTENUATORS
TRANSFER
SWITCH
Figure 7-2. MS4782A with External Combiner