Tektronix 464 User Manual

PULSE JITTER
MEASUREMENTS
Be sure the VAR TIME/DIV switch is in the calibrated
detent. Set the B
TIME/DIV switch to intensify the full
rising
portion of the pulse. Set the HOR IZ DISPLAY switch
toB DLY'D.
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MEASURE
TIME FROM
A
TO B
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JITTER --i !---
Fig. 25. Pulse jitter.
1737•23 I
Pulse jitter is shown by horizontal movement of the
pulse and includes the inherent jitter of the Delayed
Sweep (see Fig. 25).
Multiple the distance by the B
TIME/DIV switch setting to obtain pulse jitter time.
DELAYED OR MIXED
SWEEP
MAGNIFICATION
The delayed sweep features of the 475 can be used to
provide higher apparent magnification than is provided by
the X1 O MAG switch. The sweep rate of the delayed sweep
(B sweep) is
not actually increased; the apparent
magnification is the result of delaying the B sweep an
amount of time selected by the A TIME/DIV switch and the
DELAY-TIME POSITION control before the display is
presented at the sweep rate selected
by the B TIME/DIV
switch. The following method uses the STARTS AFTER
DELAY
position of the B Trigger SOURCE switch to allow
the delayed portion to be positioned with the DELAY-
TIME POSITION control. If there is too much jitter in the
delayed display, use the Triggered B Sweep mode of
operation.
Magnified Sweep Starts After Delay
1. Connect the signal to either input connector. Set the
VERT MODE switch to display the channel used.
2. Set the VOL TS/DIV switch to produce a display
about four divisions in amplitude.
48
466/464 DM44 Operators
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Tektronix 464 Specifications

General

Brand	Tektronix
Model	464
Category	Test Equipment
Language	English