Tektronix 013-0278-XX, Инструкция по эксплуатации

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Performance Verification
16
013-0278-00 Video Display Clamp
These procedures check those characteristics that relate to the bandwidth of the
Video Display Clamp listed as checked under
Warranted Characteristics in the
Specifications section .
Equipment Required: One sinewave generator (Item 6), one precision coaxial
cable (Item 2), one 50
Ω
terminator (Item 3), and one dual-input coupler
(Item 5).
1. Set the test oscilloscope as follows:
H
Set the sec/div scale to 10 ns
H
Set the channel 1 and channel 2 volts/div scales to 200 mV, AC coupled
H
Position both the channel 1 and channel 2 traces to center screen
H
Display channel 2 (channel 1 off)
2. Connect the output of the sinewave generator to the test oscilloscope as
shown in Figure 14.
NOTE
. This test setup provides a display of the test signal on channel 2 and a
clamped test signal on channel 1.
50
Ω
terminator
Video display clamp
Coaxial cable
Sinewave
Generator
Dual-input
coupler
Figure 14: Bandwidth test setup
3. Set the sinewave generator as follows:
H
Adjust the frequency to 30 MHz
H
Adjust the amplitude for a 1 V
p-p
display.
Bandwidth Check