HP 8340b - Page 339

DATA BUS
(DBO-DB15)
^
RF
SECTION
PULSE MOD
DRIVER
^-
LO BAND
MODULATOR
3.7GH2
OSCILLATOR
(MICROCI
————^
RCUITS/ASSEM
2.3-7.0GH2
FROM
YO LOOP
LO
BAND
ISOLATOR
BLIES)
^
MODULATOF
SPLITTER
;
——-
L
I
0 BANE
MIXER
?
fc
H!
SAND
^
HI
nAMn
POWER AMP
ISOLATOR
i
PRETUNE
——^
SUM
^
SWIT
i——N
DRIVER
..
YT
POWER
AMP DETECTOR
LINEAR
UOD
LEVELING
LEVELING
CONTROL CONTROL
DETECTOR
^
v\
L-^J
EXTERNAL
J
SHED
D!R
M CPLR
1
HI
BAND
DET
!„
ATTENUATOR
DRIVER
-
^
90dB
ATTEN
STEP
(
,
UATOR
} )
(REAR PANEL)
^
^^"'"
/.
-^
.S^
•^-
RF OUTPUT
10MH2-26.5GHZ
Figure
H-2.
RF
Section Simplified
Block Diagram
RF
Section Theory of
Operalion
H-13/H-14