Comtech Telecommunications Corp. Subsidiary Files Patent Infringement Lawsuit

Business Wire, June 19, 2006

MELVILLE, N.Y. -- Comtech Telecommunications Corp. (NASDAQ:CMTL) announced today that its Tempe, Arizona-based subsidiary, Comtech EF Data Corp., has filed a patent infringement lawsuit against Radyne Corporation in the U.S. District Court for the District of Arizona. Comtech EF Data Corp. asserts Radyne Corporation has willfully infringed Comtech EF Data Corp.'s U.S. Patent No. 5,666,646 entitled "Radio Frequency (RF) Converter System with Distributed Protection Switching and Method Therefor" by selling and offering for sale certain of its frequency converter products.

The patent covers a valuable RF converting system using "daisy chain" switching and eliminating the use of a centralized switching unit. In the lawsuit, Comtech EF Data Corp. seeks an injunction preventing Raydne Corporation from further misappropriating Comtech EF Data Corp.'s technology. Comtech is seeking unspecified monetary damages arising from the company's unauthorized use of the patented technology and disclosure of users of the infringing products.

Comtech EF Data Corp. had previously filed a lawsuit against another company for infringing on Patent No. 5,666,646, which resulted in that company withdrawing its product from the market.

"We would prefer not to resort to litigation, but Comtech is committed to aggressively enforcing its patents and protecting its innovations," said Fred Kornberg, President and Chief Executive Officer of Comtech Telecommunications Corp.

Comtech Telecommunications Corp. designs, develops, produces and markets innovative products, systems and services for advanced communications solutions. The Company conducts its business through three complementary segments: telecommunications transmission, mobile data communications and RF microwave amplifiers. The Company offers niche products, systems and services where it believes it has technological, engineering, systems design or other expertise that differentiate its product offerings.

Comtech EF Data Corp. manufactures a broad spectrum of satellite communications products, including Satellite Modems, TCP/IP Performance Enhancement Proxies, Converters, Amplifiers, Transceivers and Terminals. All products meet or exceed the standards published by Intelsat(R), Eutelsat, Insat, AsiaSat and other worldwide and regional satellite networks. Please visit www.comtechefdata.com for more information.

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.

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