Comtech Telecommunications announces $1.0 million in orders for new modem

Comtech Telecommunications Corporation announced that its Tempe, Arizona-based subsidiary, Comtech EF Data Corp., has received $1.0 million in orders for its new CDM-750 Advanced High-Speed Trunking Modem. The modems are being deployed by a leading operator of cellular telecommunications services in Southeast Asia to support high-speed GSM/IP trunking backhaul. By using the CDM-750, this operator will enable links of approximately 90 Mbps in 15.5 MHz of bandwidth, which is spectrally equivalent to running at 64-QAM over satellite.
 

 

The CDM-750 Advanced High-Speed Trunking Modem simultaneously supports DVB-S2, Adaptive Coding and Modulation (ACM) and the award-winning DoubleTalk(R) Carrier-in-Carrier(R) bandwidth compression. Leveraging the DVB-S2 EN 302 307 LDPC/BCH standard, the CDM-750 provides a blend of coding and forward error correction (FEC) to ensure that the maximum amount of satellite traffic is transported for a given signal to noise capacity. With its ACM support, it can respond to changing link conditions by automatically adjusting modulation and FEC rates and converting link margin into user capacity under all conditions. Additionally, the DoubleTalk(R) Carrier-in-Carrier(R) technology allows the transmit and receive carriers of a full-duplex satellite link to be transmitted in the same transponder space. When combined with advanced FEC and modulation techniques, DoubleTalk(R) Carrier-in-Carrier(R) can deliver unprecedented operating expense savings.