Watkins-Johnson Company WJ-8718-19/FE Instruction Manual page 94

WJ-8718-19/FE HF RECEIVER
CIRCUIT DESCRIPTION
3.3.2 FREQUENCY EXTENDER (FE-Al) (794278)
Figure 3-3 is a block diagram of the- Frequency Extender, FE-Al. As
shown in Figure 3-3, it consists of two major assemblies: VHF Presel'ector/lst LO
FE-A1A1; Input Converter/2nd LO, FE-A1A2.
1 n-hiki
r z - M M
1 1 m
1
u n s*.
snrrarsiio v c o
JKC LO
T.V.
'
1
1
l i t km
1
MtStLlCTOt
i r r
Cokvotw
111.) Mil
cuwvu ttt
J0-5).MM» WII
S f t t . M t M km
1 i
Figure 3-3. Frequency Extender Section Block Diagram
3-11