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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