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Performance Verification
ORR24 Instruction Manual
17
Bandwidth/Frequency Response
1. Recall the impulse waveform acquired in Step 6 on page 16.
2. Using a controller attached to the digital sampling oscilloscope via GPIB
(i.e. a PC, MAC, workstation, etc.), download the 1024-point, averaged
impulse response.
3. Using the available controller software (i.e. Labview, etc) perform an FFT
(Fast Fourier Transform) on the 1024-point impulse response; this trans-
forms the time-domain impulse response to a scalar frequency response.
4. Check that the frequency response from DC to 2 GHz is greater than or equal
to –6 dB where dB = 20log (V
log
/V
dc
) or electrical power into 50
W.
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