Tektronix 2247A

Loud
I
i
Performance Check Procedure
Add a 10X and a 2X BNC attenuator before the 50 1. BNC termination.
CHECK—that the display Is stably triggered in DC, LF REJ, and AC Trig-
ger CPLG; the display Is not triggered In NOISE REJ and HF REJ Trigger
CPLG settings.
Set:
A Trigger CPLG oc
Horizontal MODE B
A/B SELECT B Trigger
B SEC/DIV 20 ns
Set the leveled sine-wave generator (SG 503) to 10 MHz.
CHECK—that using the Trigger LEVEL control, the display can be stably
triggered In DC, LF REJ, and AC Trigger CPLG; the display cannot be
triggered In NOISE REJ and HF REJ Trigger CPLG settings.
Set leveled sine-wave generator (SG 503) to produce a 1.4 division dis-
play at 10 MHz.
CHECK-—that the display can be stably triggered with NOISE REJ Trigger
CPLG but does not trigger with HF REJ CPLG.
Set:
Horlzontal MODE A
A/B SELECT A Trigger
CHECK
—that
the
display
Is
stably
triggered
with
NOISE
REJ
Trigger
CPLG
but
does
not
trigger
with
HF
REJ
CPLG.
(The
Trigger
LEVEL
con-
trol
may
be
adjusted
to
Improve
display
stability
in
NOISE
REJ
CPLG.)
150 MHz Trigger Sensitivity
Set Trigger CPLG to DC.
Set
leveled
sine-wave
generator
to
produce
a
1.0
division
display
at
150
MHz.
CHECK—that
the
display
Is
stably
triggered
In
DC,
LF
REJ,
and
AC
Trig-
ger
CPLG.
2247A
Operators
REV
SEP
1989
7-31