Newtec M6100 - Page 185

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Features Descriptions M6100 Broadcast Satellite Modulator
Link performance can be expressed in terms of Bit or Packet Error Rate (BER or PER) versus
Energy-per-symbol to Noise density ratio (Es/No).
For a communication channel over a satellite link, the overall link performance can be severely
degraded by channel impairments.
Examples of such impairments are:
• Adjacent Channel Interference and Co-Channel Interference;
• Inter-Modulation;
• Adjacent Satellite Interference;
• Phase noise;
• Signal distortion.
The Equalink™ concept effectively optimizes satellite link performance by counteracting these
effects.
This is displayed in the following figure:
Newtec M6100, MDM6100, MDM6000 Modulators equipped with the Equalink™ feature contain
both linear- and non-linear pre-distortion functions, which can be individually enabled/disabled.