The Equalink™ Web Service offers the following functionality:
• Creation of “Satellite Link” entries
• Upload of channel characteristics describing the distortion
• Computation of multiple linear and non-linear predistortion tables
• E-mail notification when (non-linear) computation results are ready
• Download of the computation results
• All data remains accessible for later consultation, modification, download, …
Each computation is assigned a unique Id, allowing easy identification of predistortion tables present in a modulator
The Equalink Web Service is only available to Licensed Users
Access to Equalink Webservice
If you would like more information about this service contact our sales department at sales@newtec.eu
Equalink
Equalink is a revolutionary linear and non-linear pre-distortion technology implemented in Newtec DVB-S and DVB-S2 modulators, designed to compensate for the effects of imperfections in the filters and amplifiers of the satellite. This pre-correction improves the performance of the end-to-end satellite communication channel by a typical 2 dB and allows the use of higher modulation schemes such as DVB-S2 16APSK or 32APSK on carriers occupying a full transponder.For Direct-to-Home broadcasting applications, Internet backbones and other high speed satellite applications, this performance improvement represents up to an additional 11 % of data traffic in the same satellite capacity.
Equalink is a set of advanced digital filters and algorithms implemented in the modulator. The linear filter compensates for group delay and frequency response imperfections of the satellite input multiplexer (IMUX), while the non-linear pre-correction compensates for the combined effect of matched filters and transponder TWTA nonlinearities (AM/AM and AM/PM conversions).
Equalink can be used in conjunction with any standard satellite receiver and is very easy to operate.
Equalink is available as an option on the modulators of the Azimuth family, a renowned professional satellite equipment series used by leading broadcasters, satellite and telecom operators world-wide.
Downloads:
White paper: Equalising and Predistortion
White paper: Improving the transponder utilisation
