This test is to be performed only on analyzers that have Option B7J.
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This test is to be performed only on analyzers that have Option B7J. |
This test is only performed if the PSA is outfitted with Option B7J. The IF Amplitude Ripple test measures the FFT Flatness specification. This parameter is measured in order to meet the EVM specification listed for various Digital Comms applications. In this test, a CW signal of fixed amplitude is applied to the input of the PSA. The reference amplitude is measured with the PSA center frequency set to the source frequency. The PSA center frequency is then changed to ten offset frequencies within the span of interest. The signal amplitude is measured on the PSA at each offset frequency. The difference between the amplitude at an offset frequency and the amplitude at the reference frequency is the IF Amplitude Ripple.
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Test Equipment |
Model Number |
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Signal Source |
PSG Models |
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3.5 mm Cable |
8120-4921 |
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BNC Cable |
8120-2582 |
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Type-N (m) to 3.5 mm (f) adapter |
1250-1744 |
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2.4 mm (f) to 3.5 mm (f) adapter |
11901B |
