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4-17.
O ~ ~ i l l a t ~ r
Output
This test is optional. The oscillator outputs are not specified in the
Test Procedure
instrument performance specifications. The values given are typical.
Results are not recorded in the test record.
1 . Connect the equipment a s shown below. Channels
2-4
must be
disconnected.
BNC CABLE
PROBE
COMPENSATION AC
CALIBRATOR OUTPUT
INPUT
1
COMMAND
OSCILLOSCOPE
MODULE
MODULE
Figure 4-8.
Oscillator Output Test Set-up
2. Set the HP E1426A controls as follows:
.............................................................
Reset HP E1426A
*RST
........................................
Perform an Autoscale function
AUT
Channel
1
to DC a t 1MR
.............................
CHAN1:COUP DC
Digitize channel
1
................................................
DIG CHANl
...........................
Measure channel
1
frequency
MEAS:FREQ?
Digitize channel 1
................................................
DIG CHANl
............
Measure channel 1 peak-to-peak voltage
MEAS:VPP?
3. Verify the measured results are 51.5 kHz a t -800 mV.
4. Set the
HP
E1426A controls as follows:
Channel
1
to
DC at 50R
.............................
CHAN1:COUP DCF
................................................
Digitize channel 1
DIG CHANl
............
Measure channel 1 peak-to-peak voltage
MEAS:VPP?
5.
Verify the measured peak-to-peak voltage into
50S2
is 400
mV.
6.
Remove power and disconnect test equipment.
4-24
Verification Tests
February 9,
1991
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