TeamCast provides digital modulators for satellite, wireless and Digital Terrestrial Television (DTT).
TeamCast, a Washington D.C based provider of digital modulation technologies for satellite, wireless and Digital Terrestrial Television (DTT) transmission, is showing a new high capacity DVB-S2X modulator at the Satellite 2017 show.
The modulator called Tyger is notable for being able to mix broadcast and broadband traffic over a single carrier by meeting the requirements of the DVB “Annex M”. This specifies time-slicing to split a wideband signal of up to 2 Gbps into multiple independent low rates services, in order to keep the receiver IC (Integrated Circuit) complexity and price low. This is a mandatory requirement for mass market adoption.
"This new modulator opens new possibilities for operators in terms of capacity, spectrum efficiency and flexibility,” said Christophe Trolet, Business Unit Manager at TeamCast.
TeamCast will be demonstrating use of Annex M in partnership with French provider of content delivery network (CDN) technologies Broadpeak at the show. The two companies have put together a demonstration of all IP multicast delivery of live video services via satellite to multiscreen devices at home, as well as in public areas. This uses advanced features of Annex M to demonstrate multicast ABR video delivery as a cost-effective way to distribute several thousand live TV services to unicast devices.
At the head-end level, the demonstration involves a unicast to multicast converter from Broadpeak, its BkE200, and the Tyger modulator, while at the receiving point there is an IP DVB-S2X demodulator from TeamCast and a multicast to unicast converter from Broadpeak, the nanoCDN multicast ABR. This in turn feeds a range of devices via standard unicast Wi-Fi connexions.
Tyger offers the same performance as the company’s existing DVB-S/S2/S2X Vyper modulators, but with higher throughput, according to the company. It supports rates up to 480 Mbaud for DVB-S2 and DVB-S2X standards, equating to real 2 Gbps rates. Then for IP transport, Tyger uses the latest GSE adaptation algorithm, designed to reduce overhead while maximizing capacity and spectrum efficiency.
TeamCast is also showing its technology for Carrier ID at the show, based on the DVB-CID standard to help operators resolve satellite interference problems. This allows users to check and prove they are compliant with regulations over interference that are becoming mandatory. The company is demonstrating how its Vyper satellite modulator is adding the CID carrier to the transmitted carrier so that the resulting signal can be easily tracked and identified with proper receiving equipment. The demonstration also features TeamCast’s new CID Receiver, which decodes the CID signal and allows operators to check and analyse carriers to ensure the DVB-CID signal is present and compliant with regulations.
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