Tektronix 475A - Time Difference between Two Pulses from Different Sources (Basic 475 A); Time Difference between Two Pulses from Different Sources

TIME DIFFERENCE BETWEEN TWO
PULSES FROM DIFFERENT SOURCES
(BASIC 475A)
Make sure the VAR TIME/DIV control is in the
calibrated detent. Set the A Trigger SOURCE switch to CH
1. Connect the reference signal to CH 1 and the com-
parison signal to CH 2. Connect the signals to the input
connectors using probes or cables with equal time delay.
CHANNEL 1 (REFERENCE) CHANNEL 2 -
| | MEASURE
+++ TIME
FROM A TO B
i Pr te
HORIZONTAL
i DIFFERENCE
Set the VERT MODE switch to either CHOP or ALT. in
general, CHOP is more suitable for low-frequency signals
and the ALT position is more suitable for high-frequency
signals. Center each of the displays vertically (see Fig.
27A).
Set the HORIZ DISPLAV switch to A INT and the B
Trigger SOURCE to STARTS AFTER DELAY. Set the B
TIME/DIV switch 20 times faster than the A TIME/DIV
switch (when possible).
VERTICAL REFERENCE
SĘ |
+ cH 2 SIGNAL:
ONLY ONE OF THE ABOVE DISPLAYS
CAN BE POSITIONED TO CENTER ON
INSTRUMENTS WITHOUT DM 40 SERIES.. 1738-10
Fig. 27. Time difference between two pulses from different sources.
475A/DM44 Operators 51