Tektronix 2245A - TRIGGERING

Performance Check Procedure
TRIGGERING
Equipment Required (See Table 7-1)
Leveled sine-wave generator
50 11 BNC coaxial cable
2X BNC attenuator
Dual-input coupler
Function generator
10X BNC attenuator
50 Cl BNC termination
TV signal generator
1. 500 Hz Trigger Sensitivity
a. Set:
READOUT (Intensity) For a viewable readout
A INTEN
For a viewable trace
VERTICAL MODE CH 1
CH 1 and CH 2 Input COUPLING
DC
CH 1 VOLTS/DIV 0.1 V
SCOPE BW On
Horizontal MODE
A
A SEC/DIV
1 ms
Horizontal POSITION
12 o'clock
A/B SELECT A Trigger
TRIGGER MODE
AUTO LEVEL
TRIGGER SOURCE
VERT
TRIGGER CPLG
AC
TRIGGER SLOPE
(positive-going)
TRIGGER HOLDOFF
Min
FOCUS
For best defined display
CLEAR MEAS'MT
Press to remove measurement
cursors.
b. Connect function generator (FG 502) output to the CH 1 input via a
50 f l BNC coaxial cable and a 50 Cl BNC termination.
c. Set function generator (FG 502) output to produce a 7.0 division sine-
wave display at 500 Hz.
d. Add a 10X and a 2X BNC attenuator before the 50 Cl BNC termination
(for a 0.35 division display).
7-28
2245A Operators