Watkins-Johnson Company WJ-8718-19/FE Instruction Manual page 136

WJ-8718-19/FE HF RECEIVER
32 MHz
PHASE LOCK
1 MHz
LOOP
REFERENCE
UI,U2,U3A,OI,Q5
I0KHZ
REFERENCE
200-2I0MHZ
PHASE LOCK
LOOP
U7 THRUUI2,
UI4,UI3,07
32MHr
200.01 KHz
210.00 KHz PHASE
DETECTOR
U6A.U6B
MIXER U4
DIVIDER
-HOOO
UI6,UI7,UI8 200.01 KHl
2I0.00KHZ
CIRCUIT DESCRIPTION
2ND LO OUTPUT
32.20001 MHz
32.21000 MHz
Figure 3-26. 2nd LO Synthesizer Block Diagram
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