Tektronix 013-0278-XX, Инструкция по эксплуатации

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Performance Verification
013-0278-00 Video Display Clamp
17
4. Set the Video Display Clamp as follows:
H
Polarity to -- (negative)
H
Filter to Off
5. Set the test oscilloscope to display channel 1 (channel 2 off).
6. Verify that the signal display amplitude is greater than 892 mV
p-p
.
These procedures check those characteristics that relate to the 60 Hz rejection
capability of the Video Display Clamp listed as checked under
Warranted
Characteristics in the Specifications section .
Equipment Required: One test oscilloscope (Item 1), one pulse generator
(Item 8), one sinewave generator (Item 7), one 2.5X attenuator (Item 4), two
dual-input couplers (Item 5), and one precision coaxial cable (Item 2).
1. Set the test oscilloscope as follows:
H
Set the sec/div scale to 10 s
H
Set both channel 1 and channel 2 volts/div scales to 200 mV, DC
coupled.
H
Position both channel 1 and 2 traces to center screen
H
Display channel 2 (channel 1 off)
2. Connect the output of the pulse generator and the sinewave generator to the
test oscilloscope as shown in Figure 15.
NOTE
. This test setup provides a display of the test signal on channel 2 and a
clamped test signal on channel 1.
60 Hz Rejection Check