Radyne ComStream Conference Call and Webcast July 28, 2004 Second Quarter 2004 Financial Results and Operating Highlights PHOENIX, July 19 /PRNewswire-FirstCall/ -- Radyne ComStream Inc. (Nasdaq: RADN; Warrants: RADNW), today announced that it would be holding a conference call on Wednesday, July 28, 2004 at 4:30 PM Eastern time to discuss its second quarter 2004 financial results and operating highlights. The Company will release earnings at the close of market on the same day. The call is open to the public. The toll free dial in number is 1-888-396-2384 and the international dial in number is 617-847-8711; please reference Radyne ComStream conference call. The conference will also be accessible via the Internet at http://www.radn.com/ and http://www.fulldisclusure.com/. For those unable to participate at the designated time, a replay will be available following the call at both websites, or by dialing the following phone numbers: Replay Number (Toll Free) 888-286-8010 Replay Number (International) 617-801-6888 Replay Passcode 82958262 Teleconference replay available from 7/28/04 at 6:30 PM (EDT) Teleconference replay available to 8/4/04 About Radyne ComStream Radyne ComStream designs, manufactures, sells, integrates and installs products, systems and software used for the transmission and reception of data and video over satellite, microwave and cable communication networks. The company, through the Tiernan subsidiary (http://www.tiernan.com/), is a supplier of HDTV and SDTV encoding and transmission equipment. The Armer subsidiary (http://www.armercom.com/) provides innovative solutions for the integration and installation of turnkey communications systems. The company has offices in Phoenix, San Diego, Singapore, Beijing, Jakarta and London. The company also has sales and/or service centers in Rio de Janeiro, Bangalore, Shanghai and Moscow. For more information visit our web site at http://www.radn.com/. Contact: Malcolm Persen, Vice President and Chief Financial Officer, Radyne ComStream, 602.437.9620 DATASOURCE: Radyne ComStream CONTACT: Malcolm Persen, Vice President and Chief Financial Officer of Radyne ComStream, +1-602-437-9620 Web site: http://www.tiernan.com/ Web site: http://www.armercom.com/ Web site: http://www.radn.com/

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