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Section III
Figures 3-9 and 3-10
Model 492A/494A
SAWTOOTH
GENERATOR
f,
OFFSET
FREQUENCY
SINGLE
SIDEBAND
GENERATOR
- - - - - - - - - - - - - 1
I
A TTENUATOR BE INGCALIBRATE"
/
I
I
I
I
I
I
I
f-f,
I
I
I
I
I
I
_ _J
L_
I -
I
TRAVELING WAVE TUBE TUBE
AMPLIFIER
SIGNAL
GENERATOR
COUPLER
/
f
VOLTMETER
TUNED AMPLIFIER
LO-l-'"
Figure 3-9. Block Diagram of a Linear (Homodyne) Detection System
INT. SWEEP
OSCILLOSCOPE
MI XER
30 DB PAO
'T' CONNECTOR
TWT AMPLIFIER
)20 OB (
DIRECTIONAL
COUPLER
SIGNAL GENERATOR
4 TO 8 KNC
0
USE -hp- MODEL 492 A
7 TO 12.4 MC. USE
·hp·
MODEL 494 A
USE APPROPRIATE DIRECTIONAL COUPLERS.
ATTENUATORS. MIXERS.
ETC.
TO
HELIX
SLOPE - MODULATED
SAWTOOTH GENERATOR
.h p '
202A
FUNCTION GENERATOR
M.O.P.A. MICROWAVE FREQUENCY MODULATION SYSTEM
LD-L-40B
Figure 3-10. Block Diagram of a Circuit tc? Produce an FM Signal with a TWT Amplifier
3-8
00144-2
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