Tektronix DC 5010 Anleitung Seite 264

Calibration-DC 501 0
Performance Check Procedure
10. Check Input Sensitivity: X I Attenuation, DC 11. Check Input Sensitivity: X5 Attenuation, DC
and AC Coupled; 1 MO, ~ 1 2 0 mV p-p at ~ 3 0 0 MHz
and AC coupled; 1 MO, ~ 3 5 0 mV p-p at G200 MHz
--
Refer to Fig. 4-5, performance check setup. Use the fol-
Refer to Fig. 4-5, performance check setup. Use the fol-
lowing control settings. lowing control settings.
Sinewave Generator
Sinewave Generator
Frequency MHz 300
Amplitude =I20 mV
CHANNEL A and B
TERM 1 MQ (unlighted)
ATTEN X I (lighted)
Frequency Range 100-250
Frequency Variable 200
Amplitude Multiplier X I
Output Amplitude 3.5
RATIO B/A
ATTEN
(lighted)
X5
a. Remove the DC 5010 CHANNEL B input connection a. Connect the 1 MHz frequency standard to the
and attach a 50 Q termination to the end of the coaxial ca-
DC 5010 CHANNEL A input.
ble. Reconnect this cable with the termination and 1 0 ~
attenuator to the CHANNEL B input.
b. Connect a coaxial cable with a 10X ajtenuation and
50
Q
termination from the sinewave generator output to the
b. Press the DC 501 0 AUTO TRlG button, LEVEL CH B
DC 501 0 CHANNEL B input.
button, and the DISPLAY-TEST button.
c. Press the DC 501 0 AUTO TRlG button, LEVEL CH B
button, and the DISPLAY-TEST button.
c. Press the DC 501 0
?
(increment) or
4
(decrement) but-
ton to adjust the trigger level for a stable display readout.
d. Press the DC 501 0
f
(increment) or
4
(decrement) but-
ton to adjust the trigger level for a stable display readout.
d. CHECK-that the DC 501 0 display readout indicates
approximately 300.0XXXX (the last four digits can vary due
to source instability).
e. CHECK-that the DC 501 0 display readout indicates
approximately 200.00XXX (the last three digits can vary due
to source instability).
e. Remove the 1 MHz frequency standard from the
DC 501 0 CHANNEL A input.
f. Press to light the DC 501 0 FREQ A button.
f. Move the DC 5010 CHANNEL B input connection to
the CHANNEL A input.
g. Remove the 1 MHz frequency standard from the
DC 501 0 CHANNEL A input.
g. Press to light the DC 5010 FREQ A button, AUTO
h. Move the DC 5010 CHANNEL B input connection to
TRlG button, LEVEL CH A button, and the DISPLAY-TEST
the CHANNEL A input.
button.
i. Press the DC 501 0 AUTO TRlG button, LEVEL CH A
h. Press the DC 501 0
f
(increment) or
I
(decrement) but-
button, and the DISpLAY-TEST button.
ton to adjust the trigger level for a stable display readout.
j. Press the DC 5010
7
(increment) or
1
(decrement) but-
i. CHECK-that the DC 5010 display readout indicates
ton to adjust the trigger level for a stable display readout.
approximately 300.00XXXX (the last four digits can vary
due to source instability).
k. CHECK-that the DC 5010 display readout indicates
-
approximately 200.00XXXX (the last four digits can vary
j. Remove the cable connections.
due to source instability).
REV JUL 1983