Analog Demodulation Measurement Application
Frequency Modulation - Level and Carrier Metrics
Frequency Modulation - Level and Carrier Metrics
Description | Specifications | Supplemental Information |
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FM Deviation Accuracy |
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Rate: 1 kHz - 1 MHz, |
| ±(1% of (rate + deviation) + |
Deviation: 1 - 100 kHza |
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| 20 Hz) (nominal) | |
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FM Rate Accuracy |
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Rate: 1 kHz - 1 MHzab |
| ±0.2 Hz (nominal) |
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Carrier Frequency Error |
| ±0.5 Hz (nominal) |
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| Assumes signal still visible in |
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| channel BW with offset |
Carrier Power |
| ±0.85 dB (nominal) |
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a.For optimum measurement of rate and deviation, ensure that the channel bandwidth is set wide enough to capture the significant RF energy (as visible in the RF Spectrum window). Setting the channel bandwidth too wide will result in measurement errors.
b.Rate accuracy at high channel bandwidths assumes that the deviation is sufficiently large to overcome channel noise.
146 | Chapter 11 |
