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10
15.
SWEEPWIDTH
Varies
width
of sweep, from 0
(no sweep) to 1000:1 (max. sweep width).
Pull for AM/FM modulation
capability.
16. MODULATION CARRIER
Varies AM/FM modulation leve!
,
either from
internai 400Hz
source or
VCF/MOD IN
connector
21. Pull for FM modulation
capability.
17. MOD
Selects internai 400Hz
sine
wave modulation, or
extemal signal applied
to VCF/MOD IN
connector 21.
18. COUNTER INPUT
Selects internai waveform
(function generator
output) or
external signal on Extemal
Counter
connec tor 19
for
measurement
and dis
play.
19.
EXTCOUNTER
Accepts
external signais
in
the 5Hz-to-100MHz
range
for
measurement.
20.
TTL/CMOS
Square
wave output for driving
digitallogic.
Can be varied in
pulse width with DUTY
control.
21.
VCF/MOD
IN
DC voltage input to
control function generator frequency (V CF), or external
modulation
signal
input when modulation
capability is
used.
22.
OUTPUT
50 ohm square,
triangle,
or sine wave
output.
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