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252 Chapter 24
VXA Measurement Application
Analog Modulation Analysis (89601X Option 205)
Analog Modulation Analysis (89601X Option 205)
Description Specifications
Supplemental
Information
AM Demodulation
Carrier ≤−17 dBfs
Demodulator Bandwidth Same as selected measurement span
Modulation Index Accuracy ±1%
Harmonic Distortion −55 dBc relative to
100% modulation index
Spurious −60 dBc relative to
100% modulation index
Cross Demodulation < 0.5%AM on an FM signal with
50 kHz modulation rate,
200 kHz deviation
PM Demodulation Deviation < 180°,
modulation rate ≤500 kHz
Demodulator Bandwidth Same as selected measurement span,
except as noted
Modulation Index Accuracy ±0.5°
Harmonic Distortion < 0.5%
Spurious −60 dBc
Cross Demodulation 1° PM on an 80% modulation index AM
signal, modulation rate ≤1 MHz