Disruptive digital pre-correction for satellite modulator

TeamCast introduces a second generation solution, usable with widely used constellations – such as QPSK and 8PSK – while previous techniques are only efficient with high order constellations (e.g. 16APSK and 32APSK), which makes them of limited interest.

Digital pre-correction of the satellite’s signal chain is a technical challenge. First generation solutions have been available on the market for a few years. The benefits they bring are not as high as expected, especially for the low order constellations which are the most widely used: QPSK and 8PSK.
TeamCast is introducing a new and innovative digital pre-correction solution on its VYPER range of satellite modulators. This second generation technique offers significant gains in budget margin, from 1.5 dB for 8PSK to 5 dB for 32APSK. It is available as a simple software upgrade for the VYPER modulators.