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8.
DUTY
(push)/INV (pull)
V aries duty cycle of
signal from
50% (1: 1) in Cal. position to about 10% (10: 1 ). Pull knob to
invert
duty cycle. Affects both signal outputs at TTL/CMOS connector 20 and Output connector
22.
9. TIL (push)/CMOS
(pull)
Adjusts output leve! on TTL/CMOS
connec
tor 20. Push in
for
fixed TTL leve! pulse. Pull out
for adjustable 5-15V CMOS leve! pulse.
10. DC OFFSET ADJUST
Applies an adjustable positive or negative DC offset voltage to the
signal
on Output connec tor
22. Pull
to
ad just offset.
11
.
FUNCTION Selector
Selects
square, triangle, or
sine
wave output at
connec
tor
22.
TTL/CMOS output connec tor
20 not affected.
12.
AMPLITUDE
(push)/-20dB
ATTN (pull)
Adjusts output amplitude on Output
connector
22. Pull for -20 dB (10%
of
original output)
attenuation.
13. FREQUENCY
(push)/SWEEP (pull)
Sets desired frequency of
signal
between
0.2
and
2
times the Frequency Range value
selected.
Pull for
sweep
mode.
14. SWEEP TIME LINEAR
(push)/LOG (pull)
Adjusts repetition rate
of sweep in
a linear mode
(i.e.
number
of sweeps/second).
Pull for log-type
sweep.
9
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