X-Axls Gain Accuracy; X-Y Phase Difference - Tektronix 2247A Operator's Manual

Performance Check Procedure
10. X-Axls Gain Accuracy
a. Set:
Horizontal MODE X-Y
Vertical MODE
CH 2 (CH 1 off)
CH 1 and CH 2
VOLTS/DIV
10 mv
CH 1 Input COUPLING DC
CH 2 Input COUPLING GND
b. Connect
calibration generator
Std Ampl
output to the CH
1 Input via a
50 Q precision BNC coaxial cable.
c.
Set calibration generator
for Std Amp!
output,
50 mV.
d.
CHECK—X-Axls
amplitude
is between
4.85 and
5.15
horizontal
divisions.
e. Disconnect calibration generator.
11, X-Y Phase Difference
a. Set:
Horizontal MODE A
Vertical MODE
CH 1 (CH 2 off)
CH 1 Input COUPLING bc
b.
Connect
leveled
sine-wave
generator
output
to the
CH 1 Input
via a
50 © BNC coaxlal cable and a 50 2 BNC termination.
c. Set leveled sine-wave generator output for six divisions of signal display
amplitude at 50 kHz.
d. Set:
Horizontal MODE
X-Y
CH 1 Input COUPLING GND
®. Position dot to graticule center.
2247A
Operators
7-45