Tektronix 475A - Time Difference between Repetitive Pulses (Dm44); Time Difference between Repetitive Pulses

TIME DIFFERENCE BETWEEN
REPETITIVE PULSES (DM44)
Set the controls as follows:
FUNCTION TIME
HORIZ DISPLAY A INTEN
B SOURCE STARTS AFTER DELAY
A TIME/DIV To display 2 pulses
B TIME/DIV 3 or 4 positions more
cw than A TIME/DIV
A TIME To move the time-
measurement point to
the right of the ref-
erence point
VAR TIME/DIV Detent position
Position the display approximately as shown in Fig.
29A, Use the DELAY TIME POSITION control to move the
reference point to the first pulse. Both intensified zones
will move when the DELAY TIME POSITION control is
adjusted. Use the A TIME control to move the time-
measurement point to the second pulse.
Set the HORIZ DISPLAY switch to B DLV'D. Slightly
readjust the A TIME control to superimpose the
waveforms (see Fig. 29B). The DELAY TIME POSITION
control may need to be slightly readjusted to keep the
display on screen, The Readout and Scale Factor Lamps
now indicate the time difference between the pulses.
"PoE
TIME
“> DIFFERENC ETT
I He me =
T tH
"ER AMR
o- ~LINTENSIFIEDS zad
all © J ZONES ia
i mala
(A) A DISPLAY VERTICAL
REFERENCE LINE
}
HE
m
LES A AND B
MTE SUPERIMPOSED
A
(B) BDLY'D DISPLAY (1738-23)2039-30 I
Fig. 29. Time difference between repetitive pulses.
56 475A/DM44 Operators ©