Capabilities

Carrier Cancelation Technologies

DoubleTalk Carrier-In-Carrier (CnC) 
DoubleTalk Carrier-in-Carrier, based on patented “Adaptive Cancellation” technology, allows transmit and receive carriers of a duplex link to share the same transponder resources. CnC is complementary to all advances in modem technology, including advanced FEC and Modulation techniques. As these technologies approach theoretical limits of power and bandwidth efficiency, CnC utilizes advanced signal processing techniques to provide a new dimension in bandwidth and power efficiency. CnC can be used to save transponder bandwidth and/or transponder power, thereby allowing successful deployment in bandwidth-limited as well as power-limited scenarios.

Carrier ID / MetaCarrier

Comtech has developed a technology called MetaCarrier that is used to embed and detect Carrier ID on video and data satellite carriers. The Meta prefix is used in its meaning of a carrier used to describe another carrier. In this case, MetaCarrier means that we have a separate carrier that contains information, which is used to describe the host carrier, a group of carriers, or a relay, such as a satellite transponder, or terrestrial wireless relay. What is unique is that the MetaCarrier is embedded using spread spectrum techniques within the host carrier(s) or relay, without adding appreciable noise to the carrier(s) or relay.

Modems Supporting this Technology: