Motorola R-20018 Manual page 33

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SYNTHESIZER 15
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MOD AUDIO BUS
AM AUDIO • DC LEVEL AS
0
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IEEE
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10 MHz
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10 MHz FREQ
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IEEE 488 BUS
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1 A 11 INPUT MODULE
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DSB MOD
A11A2
SIDEBAND AUDIO
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2
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10·7 MHz IF
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MOD
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WATTMETER I 455KHZ IF
EXT FWD PWR I
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INPUT
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-
EXT RFL PWR
DVM INPUT BUSS
A3
IFIBFO FREO
SCOPE/DVM
FRONT PANEL INPUTS
OFFSET FREQ
DVM TO AID CONVERTER
CONTROL
t
FRONT PANEL OISP
A12
EXT DVM
CHAR. GEN Z-AXIS
VERTISINAO/OVM/
FRONT PANEL
A7 A9
AND SYNC
INTERFACE
EXT FREO
FREO COUNTER IN
PROCESSOR
PROCESSOR
EXT HORIZ INPUT
1/0
PROCESSOR BUS
SYSTEM CONTROL BUSES
SCOPE VERT FROM A TTENUATOR
INTERNAL SCOPE VERT
SCOPE EXT HORIZ
SCOPE Z-AXIS
SCOPE VERT
SCOPE INT HORIZ
EXT 10 MHz OUT
TPUT
MOOOU
DUPLEX OUTPUT
DEMOD OUTPUT
A2
CRT VERT
SCOPE
CRT HORIZ CRT
AMPLIFIER
CRT Z·AXIS
1 JUMPERS ARE INSTALLED WHEN THE
IEEE OPTION IS NOT INSTALLED.
2 WITH IEEE OPTION. THE RF Attenuator.
IS CONTROLLED FROM THEA8MOOULE.
OTHERWISE FRONT PANEL CONTROLLED.
8521·1
Figure 5-3. Communications System Analyzer
Block Diagram