Newtec, Intelsat Set New Spectral Efficiency Record

Netwec’s MDM6000 satellite modem. Photo: Newtec

[Via Satellite 08-24-2015] Newtec together with Intelsat, have achieved a world first for the amount of throughput in a single transponder. During a demonstration at Intelsat’s Fuchsstadt teleport in Germany, engineers from both companies used the Newtec MDM6000 satellite modem with all digital built-in Bandwidth Cancellation (BWC) technology to set the record of putting 20 Mbps into 2 MHz.

The Newtec MDM6000 satellite modem uses new modulation and Forward Error Correction (FEC) codes up to 256 Amplitude and Phase Shift Keying (APSK) in the Extended Second Generation Digital Video Broadcasting-Satellite (DVB-S2X) standard, along with embedded technologies — including 133 Mbaud wideband support, Clean Channel Technology, intelligent Automatic Uplink Power Control (AUPC), FlexACM and Equalink 3 — to bring the satellite link to full efficiency. According to Newtec, adding BWC, which allows transmission of two carriers in an overlay fashion, improves the performance even more for any point-to-point application, along with other optional network optimization technologies.

“This is an important achievement, as it shows our ability to fully utilize the capabilities of next generation satellites using Newtec technology that is available today. With a spectral efficiency of more than 10 bps/Hz, one can, for example, handle a bidirectional E1 in just 400 kHz,” said Dave Suffys, product manager for IP modems at Newtec. “A gain of at least 30 percent in space capacity can be achieved for any bidirectional link.”