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Satellite Communications Technology

NovelSat and Spacecom exhibit world’s highest spectral efficiency over AMOS-17

(14 September 2020 - NovelSat) NovelSat and Spacecom, operator of the AMOS satellite fleet, announced today the successful demonstration of high capacity satellite transmission with spectral efficiency of 10.5 bit/Hz over AMOS-17 high performance HTS utilizing NovelSat Duet CEC (carrier-echo-cancellation) band reuse technology.

Operating over AMOS-17 Ka HTS and Ku beams, NovelSat modems established a symmetrical link, reaching 64APSK modulation with 9/10 FEC rate and 2% roll-off, achieving data rate of 854Mbps over of 81.6MHz bandwidth and 753Mbps over 72MHz bandwidth, demonstrating spectral efficiency of 10.5 bit/Hz.

This extraordinary performance was achieved without any power backoff or additional satellite padding, and without requiring predistortion calibration. Connected to a 2.4m diameter antenna, the remote modem performed carrier-echo-cancellation, enabling simultaneous use of the same bandwidth for both uplink and downlink with implementation loss lower than 0.01dB.

“NovelSat NS4 waveform has proven to bring tremendous value to our customers and we are happy to demonstrate its outstanding performance over the advanced fully digital AMOS 17 satellite,” said Aviv Ronai, VP Marketing and Product at NovelSat. “Our technological superiority makes our satellite connectivity solutions the ideal, go-to-choice for service providers worldwide who are looking to efficiently support their most demanding applications.”

According to Amit Hoomash, Product Manager at Spacecom, “We were excited to demonstrate with NovelSat the very high throughput our customers can enjoy on AMOS-17, without having to compromise on solution complexity. The throughput and efficiencies of AMOS-17’s beams are unique over Sub Saharan Africa. NovelSat’S modems and team proved this, while using one modem per site and small antenna. Together with NovelSat, we are able to address important market segments with cost-effective, easy to deploy and maintain solutions.”

About NovelSat

NovelSat is a leading provider of next-generation content connectivity solutions for satellite communications. Powered by our innovative technology, our solutions are setting the industry standards in spectral efficiency, transmission performance, and content security. Our high- performance products include satellite modems, modulators and demodulators, integrated video transmission/coding and content security solutions, transforming delivery of data and video over satellite. Delivering more capacity with greater availability, coverage and protection, our solutions are powering mission-critical and demanding applications for the broadcast, cellular, government, and mobility markets.

About Spacecom Spacecom (Space-Communication Ltd.), operator of the AMOS-3 and AMOS-7 satellites co-located at 4°W, AMOS-17 located at 17°E and AMOS-4 at 65°E, provides high-quality broadcast and communication services to Europe, the Middle East, Africa, and Asia. Spacecom’s AMOS-17 fully digital HTS satellite supports a variety of broadcast, broadband and data services from its 17˚E orbital slot. The satellite provides high throughput (HTS) African coverage in C-band, global steerable coverage in Ka-band, and extensive Ku-band coverage over Africa, serving direct-to-home (DTH) operators, internet service providers (ISPs), telecom operators and MNOs, network integrators and government agencies.