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4-
A15JlOl
SAMPLER
IF TO
Al4
-10 TO
+5
d&
W34 1ST LO SAMP
i
FROM A7 SLODA
J501
CAL OUTPUT
TO FRONT PANEL TO SIG ID OSCILLATOR
> -9
dhl
-------mt---
-10
d&n
m--m--m--
-----------1
;P/O
Al5 RF
i
TTL
LEVELS
I
OSCILLATOR
CALIBRATOR
AGC AMP
SRD LO
DRIVER
MIXER
TP40 1
2 TO
-6
d&r
20 MHz
OFFSET
PLL
5,lD.
15 MHz
TTL
ioo
MHz
PLL
J7Dl
600 MHz
2ND
LO
DRIVE
0
dh
10 MHz
FROM
A21
ocxo
J303
10 MHz
REFl
TO
Al4 0
dh
J304
10 MHz REF2 TO
A4 0
db
J302
10 MHz FREO COUNT
TO A2
0
d&n
SI
122e
Figure 11-12. Simplified A15 Assembly Block Diagram
Synthesizer Section
11-49