MELVILLE, N.Y., Oct. 28, 2008 (GLOBE NEWSWIRE) -- Comtech Telecommunications Corp. (NasdaqGS:CMTL - News) announced today that its Tempe, Arizona-based subsidiary, Comtech EF Data Corp., received three orders totaling $6.2 million for satellite communications equipment. The equipment will be utilized by two Asian operators and one Middle Eastern operator to support and expand their satellite-based cellular backhaul networks.

While the orders specify a range of different products, the anchor product for all three orders is the CDM-625 Advanced Satellite Modem with DoubleTalk(R) Carrier-in-Carrier(R). Released earlier this year, the CDM-625 Advanced Satellite Modem builds on Comtech EF Data's legacy of providing bandwidth-efficient satellite modems. It is the first modem to combine Low Density Parity Check (LDPC) codes with the revolutionary DoubleTalk Carrier-in-Carrier bandwidth compression allowing for maximum savings under all conditions.

Carrier-in-Carrier is based on Applied Signal Technology's DoubleTalk bandwidth compression technology. DoubleTalk uses ``Adaptive Cancellation,'' a patented technology that allows the transmit and receive carriers of a full-duplex satellite link to be transmitted in the same transponder space. When combined with advanced forward error correction and modulation techniques, DoubleTalk Carrier-in-Carrier can deliver unprecedented operating expense savings. In addition, DoubleTalk Carrier-in-Carrier can provide capital expenditure savings by allowing a smaller BUC/HPA and/or antenna.

``Our CDM-625 modem with DoubleTalk Carrier-in-Carrier continues to be adopted globally by service providers,'' said Fred Kornberg, President and Chief Executive Officer of Comtech Telecommunications Corp. ``The bandwidth efficiencies provided by the revolutionary DoubleTalk Carrier-in-Carrier technology are being leveraged to address satellite capacity challenges.''

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 http://www.comtechefdata.com for more information.

Comtech Telecommunications Corp. designs, develops, produces and markets innovative products, systems and services for advanced communications solutions. The Company believes many of its solutions play a vital role in providing or enhancing communication capabilities when terrestrial communications infrastructure is unavailable or ineffective. The Company conducts business through three complementary segments: telecommunications transmission, mobile data communications and RF microwave amplifiers. The Company sells products to a diverse customer base in the global commercial and government communications markets. The Company believes it is a market leader in the market segments that it serves.

Certain information in this press release contains statements that are forward-looking in nature and involve certain significant risks and uncertainties. Actual results could differ materially from such forward-looking information. The Company's Securities and Exchange Commission filings identify many such risks and uncertainties. Any forward-looking information in this press release is qualified in its entirety by the risks and uncertainties described in such Securities and Exchange Commission filings.

PCMTL

          Comtech Telecommunications Corp.
          Media Contacts:
          Michael D. Porcelain, Senior Vice President and 
           Chief Financial Officer
          Jerome Kapelus, Senior Vice President, Strategy 
           and Business Development
          (631) 962-7000
          Info@comtechtel.com