Operating Procedure; Definition Of Terms - GENERAL RADIO COMPANY 1398-A Operating Instructions Manual

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T Y P E 1398-A PULSE GENERATOR
SECTION
3
OPERATING PROCEDURJE
3.1 DEFINITION OF TERMS.
main p u l s e . .
. . . . . . . . . . . . . . . . . . .
. T h e principal output of the instrument; available a t the OUT-
PUT PULSE binding posts.
p r e p u l s e . .
. . . . . . . . . . . . . . . . . . . . .
. T h e positive or negative sync pulse supplied just before the
start of the main pulse; available a t the SYNC + a n d SYNC
-
binding posts.
delayed pulse
. . . . . . . . . . . . . . . . . . .
The pulse coincident with the end of the main pulse; available
a t the DELAYED SYNC binding posts.
internal operation..
. . . . . . . . . . . . .
The mode where pulse repetition frequency is determined by
the pulse generator itself and controlled by t h e PRF controls
on the front panel.
external operation
. . . . . . . . . . . . . . .
T h e mode where pulse repetition frequency is determined by
an external signal source; the pulse generator generates
p u l s e s only when triggered by signals applied t o the EXT
DRIVE binding posts.
duty r a t i o . .
. . . . . . . . . . . . . . . . . . . .
.The ratio of pulse aonn time t o the total time of t h e period
established by the prf setting; duty ratio, in percent
=
prf x
duration x 100.