Watkins-Johnson Company WJ-8718-19/FE Instruction Manual page 130

WJ-8718-19/FE HF RECEIVER
CIRCUIT DESCRIPTION
N.
A5A1A1
OSCILLATOR
01
AMPLIFIED
02
POWER
SPLITTER
R9.R10
7V0C
REGULATOR
04
Lp^n
rnoM
BASE
PHASE
OETECTO*
US
- N
COUNTER
un Fill
CMAW&E
PUMP
U*C,C*l
ckz
tAPLY
DECODE
P-CUi
""CT
— N
COUNTEP
uioEIS
COUNTEP U
ED
W3 US
RF OUT
DIVIDE-BY-4
ASSEMBLY
ui.05
ZEPO
DETECTOP
P/O US
OETECTO*
ENABLE
Ui2t
ENCODE
ENABLE
UI2A
A5A1A2
- 50. -Si
PPESCA1.E*
U.U2A
T
SWALLOW
NT£P
SWALLOW
COUNTED
US
n r ttt7
OCTAL
ENCODE*
Uli
OJ-04
DIGITAL CODE CONVEPTEP
u«
iU
Figure 3-23. 1st LO Synthesizer Block Diagram
1ST LO
OUTPUT
3-47