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2114 West 7th Street • Tempe, Arizona 85281 USA
Telephone 1.480.333.2200 • Fax 1.480.333.2540
Comtech EF Data Introduces New CDM-740 Satellite Modem For Point-To-Multipoint Applications

Innovative Platform Integrates DVB-S/S2 Receiver and Turbo SCPC Modulator


TEMPE, Arizona, May 20, 2009 – Comtech EF Data Corporation announced today the new CDM-740 Satellite Modem. The system’s innovative, high performance architecture features an integrated DVB-S/S2 Receiver and a Turbo Product Coding (TPC) Single Carrier Per Channel (SCPC) Modulator. The combination of a shared, high speed outbound DVB-S/S2 carrier and TPC for the low latency data return channel facilitates efficient IP networking and transport over satellite.

Packaged in a carrier-grade 1RU platform, the CDM-740 Satellite Modem saves rack space and simplifies remote management compared to two box solutions. Optimized for high-speed packet processing and reliability, it uses an embedded central processing unit, real time operating system and flash data storage. The CDM-740 offers dual Gigabit Ethernet interfaces and is available in modem and demodulator only configurations. The system transmits industry-standard TPC up to 9.98 Mbps. The receive side supports DVB-S and DVB-S2 operation at L-Band up to 62 Msps.

To optimize the use of bandwidth, the CDM-740 supports DVB-S2-based Constant Coding & Modulation (CCM) and Variable Coding & Modulation (VCM) operation. While both modes of operation deliver efficiencies compared to DVB-S, VCM further increases user capacity or reduces the overall bandwidth required by the network.

"This unique, integrated platform leverages DVB-S2, Turbo Product Coding and industry-leading performance to enable efficient IP networking and transport for point-to-multipoint applications," said Louis Dubin, vice president product management.

Comtech EF Data Corp. manufactures a broad spectrum of satellite communications products, including Satellite Modems, Bandwidth & Capacity Management, TCP/IP Performance Enhancement Proxies, Encapsulators, Receivers, Converters, Amplifiers, Transceivers and Terminals.  All products meet or exceed the standards published by worldwide and regional satellite networks. Please visit for more information.


Media Contact:
Sue Lassandro
Comtech EF Data
Voice: 480.333.2200
Fax: 480.333.2540