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SxX-680
28. Turn the FM SG modulation
mode setting to
external modulation.
29, Adjust
the MPX
SG
modulation
settings to
1kHz,
L + R, 90% modulation (67.5kHz devia-
tion),
with
10%
pilot
modulation
(7.5kHz
deviation).
30. Adjust the core of T, for minimum distortion
in the 1kHz
demodulated
output
from L or
pee
SheR ean 4n
COCCETTre
Fig. 6
Lissajous figure
FM signal generator
3002
COUT
i
REC TERMINAL
EXT. MOD
Multitester
eo
*
Oscilloscope
|
||MPX signal generator
VERT.
HORIZ. PILOT OUT
OUT
Fig. 7 Connection diagram
15
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