7.1.4 Impairment Measurements
7.1.4.1 Table Mode
In addition to the standard digital carrier measurements, the following impairments are also measured with the optional Advanced Digital
Measurement:
Error Vector Magnitude (EVM) in %
Measurement of modulation quality of the transmitted signal before forward error correction.
Error Vector Magnitude = (maximum symbol magnitude / rms error magnitude) X 100%
Maximum AC (maximum haystack amplitude change/variation)
Carrier to Ingress
Carrier to noise
HUM in %
Phase jitter in degrees
Symbol Rate Error in ppm
Frequency Error in ppm (deviation from nominal preset frequency)
Peak to Peak Frequency Response
Peak to Peak Group Delay
Impairment Table (Digital Carrier)
Summary of Contents for VEPAL CX350S-D3.1
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