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Chapter 24 253
VXA Measurement Application
Analog Modulation Analysis (89601X Option 205)
FM Demodulation
Demodulator Bandwidth Same as selected measurement span
Modulation Index Accuracy ±0.1% of span, deviation < 2 MHz,
modulation rate ≤500 kHz
Harmonic Distortion
Modulation Rate
< 50 kHz
≤500 kHz
Deviation
≤200 kHz
≤2 MHz
Distortion
−50 dBc
−45 dBc
Spurious
Modulation Rate
≤50 kHz
≤500 kHz
Deviation
≤200 kHz
≤2 MHz
Distortion
−50 dBc
−45 dBc
Cross Demodulation < 0.5% of span of FM on an 80% modulation
index AM signal, modulation rate ≤1 MHz
Description Specifications
Supplemental
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