150 Mhz Trigger Sensitivity - Tektronix 2245A Operator's Manual

g. CHECK—that, using the Trigger LEVEL control, the display can be
stably triggered in DC, LF REJ, and AC Trigger CPLG; the display can
not be triggered in NOISE REJ and HF REJ Trigger CPLG settings.
h. Set leveled sine-wave generator (SG 503) to produce a 1.4 division
display at 25 MHz.
I. CHECK—that the display can be stably triggered with NOISE REJ Trig­
ger CPLG but does not trigger with HF REJ CPLG.
j. Set:
Horizontal MODE
A/B SELECT
k. CHECK—that the display is stably triggered with NOISE REJ Trigger
CPLG but does not trigger with HF REJ CPLG. (The Trigger LEVEL
control may be adjusted to improve display stability in NOISE REJ
CPLG.)
4.

150 MHz Trigger Sensitivity

a. Set TRIGGER CPLG to DC.
b. Set leveled sine-wave generator to produce a 1.0 division display at
150 MHz.
c. CHECK—that the display is stably triggered in DC, LF REJ, and AC
Trigger CPLG.
d. Set:
Horizontal MODE
A/B SELECT
e. CHECK—that, using the Trigger LEVEL control, the display can be
stably triggered in DC, LF REJ, and AC Trigger CPLG.
f. Set:
Horizontal MODE
VERTICAL MODE
CH 2, CH 3, and CH 4
VOLTS/DIV
A/B SELECT
2245A Operators
Performance Check Procedure
A
A Trigger
B
B Trigger
A
CH 2 (CH 1 off)
0.1 V
A Trigger
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