Tektronix 314 Manual

b. Set both Input Coupling switches to DC (AC if de compo 
nent of signal is too large).
c. Press ALT button in and set VOLTS/DIV switches to
produce displays equal in amplitude. Press ADD button in
(press CH 2 INVERT button in, if necessary, so that the
common-mode signals are of the same displayed polarity).
d. Set CH 2 VOLTS/DIV switch and VARIABLE control
for maximum cancellation of the common mode signal. See
Figure 16 for typical displays of input signals and resultant
display.
HOW TO USE EXTERNAL BLANKING
(Z-AXISOR INTENSITY MODULATION)
Intensity modulation can supply additional information to
a display without changing the X-Y information. Blanking
is accomplished by applying a positive-going signal having
Fig. 16. Using the ADD feature for common-mode rejection. (A) Channel 1 signal contains desired information along with line frequency
components, (B) Channel 2 signal contains line-frequency only, (C) Crt display using common-mode rejection.
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314 Operators

Tektronix 314 Specifications

General

Brand	Tektronix
Model	314
Category	Test Equipment
Language	English