Digital Sample Processing (DSP) bandwidths of 2 MHz, 1 MHz, 400 KHz, 200 KHz & 100 KHz are not available in the N8972A.
The NFA's filter shape is asymmetrical. The center frequency is defined at the half power level under the curve. The frequency accuracy tests are performed by measuring selected PHot points along the filter curvature. The half power value of the PHot measurements is then calculated. The frequency which closest matches this value is given as the center frequency point.
For test purposes, the narrow bandwidths are verified at the narrowest bandwidth of 100 KHz. This is due the fact that the analyzer uses digital sample processing (DSP). It is therefore only necessary to verify the narrowest bandwidth with the most accurate specification.
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Digital Sample Processing (DSP) bandwidths of 2 MHz, 1 MHz, 400 KHz, 200 KHz & 100 KHz are not available in the N8972A. |
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Test Equipment |
Recommended Models |
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Signal Generator |
PSG models |
