Dimensions = mm (inches)
Block Diagram – Exciter/Control/Monitor Stage
Issue 1.1 Not to Scale Figure 6-2 Page 6-11 (6-12 Blank)
9 VDC
+/- VDC
+/-VDC
+/-VDC
+/-VDC
PDM (B)
PDM (A)
+/-VDC
FROM RF POWER STAGE
USER INTERFACE
PWB
CONTROL/MONITOR
ISOLATED INT SERIAL LINK
EXT AUDIO INPUT
PWB
PWB B
EXCITER/
MONITOR
GENERATOR
B
INTERPHASE
PWB
SYNTHESIZER
A
INTERPHASE
PWB
SYNTHESIZER
+15VDC (B)
+15VDC (A)
and
DIGITAL
DISPLAY
EXT AUDIO
GENERATOR
MONITOR
PWB A
EXCITER/
PWB
B
PWM DRIVER
FREQUENCY
PWB
A
PWM DRIVER
FREQUENCY
9 VDC
B2050018 VB
ANALOG/
DISPLAY
TO/FROM AC/DC POWER STAGE
FWD/REFLD PWR, RF VOLT MONITOR, RF CURRENT MONITOR
ANTENNA TUNING UNIT
EXT CONTROL MONITOR
INTERFACE
(OPTIONAL)
INT SERIAL LINK
(OPTIONAL)
TO/FROM AC/DC POWER STAGE
KEYED TONE/EXT AUDIO (B)
KEYED TONE/EXT AUDIO (A)
CONTROL/MONITOR, INT SERIAL LINK
PWB
EXCITER
INTERFACE
+ VDC (A)
+ VDC (B)
RELAY CONTROL
RF DRIVE(A), PDM(A)
INT SERIAL LINK, CONTROL/MONITOR
LOCAL CONTROL
SPEAKER
CONTROL/
EXT SERIAL LINK (RS232, RS422)
NDB SITE
MODEM
PTSN
CONTROL/MONITOR, INT SERIAL LINK
INTERFACE
REMOTE
INTERFACE
PWB
RF DRIVE(B), PDM(B)
CONTROL/MONITOR, INT SERIAL LINK
CARRIER REF (A) & (B)
KEYED TONE/EXT AUDIO (A) & (B)CONTROL/MONITOR, EXT SERIAL LINK
CONTROL/MONITOR
2FPDM(B), +15VDC(B), CARRIER REF(B), KEYED TONE/EXT AUDIO(B)
CONTROL/MONITOR
2FPDM(A), +15VDC(A), CARRIER REF(A), KEYED TONE/EXT AUDIO(A)
TO RF POWER STAGE
CONTROL/MONITOR
CONTROL/MONITOR
CONTROL/MONITOR, INT SERIAL LINK
CONTROL/MONITOR
RF DRIVE (B), 2FPDM (B)
CONTROL/MONITOR
RF DRIVE (A), 2FPDM (A)
CONTROL/MONITOR
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