Watkins-Johnson Company WJ-8718-19/FE Instruction Manual page 107

Hf receiver
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CIRCUIT DESCRIPTION
WJ-8718-19/FE HF RECEIVER
3-24
STROBE
D0-D7
1
MHZ
REF
STROBE
DECODER
U5
U6
U7
\
&
\
1
SYNTH.
. Ul
FILTER
U2
CTRL
i
PRESCALER
U3.U4
BAND
SWITCH
TUNE
VOLTAGE
Figure 3-9. 1st LO Synthesizer, FE-A1A1A1, Block Diagra
m

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