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FYI: Satellite - fiber modems
From: David Farber <farber () central cis upenn edu>
Date: Thu, 26 May 1994 09:21:02 -0500
Posted: Tue, May 24, 1994 6:05 PM PDT Msg: ZPJE-3093-4688/20 From: ("RFC-822": <buenneke(a)rand.org>, SITE:ARC) To: ("RFC-822": <spacenews(a)rand.org>,SITE:ARC) CC: mdavies/NASA, rzimmerman/NASA Subj: ACTS Status Report RFC-822-Headers: X-Sender: buenneke () pop rand org Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Forwarded from the ACTS Project Office is the following: ********** This ACTS Status Update was prepared by NASA's Lewis Research Center for distribution to friends of the ACTS Program. It was released on May 17, 1994. ********** 696 Mega-bit per second Modems successfully tested by Motorola over ACTS. As the United States competes in the information age, global economy, the need for not only a national, but global, telecommunications infrastructure to move bits of voice, data and video information is becoming vitally important. Finding the right blend of satellite and terrestrial technologies on which to build this new and complex infrastructure is a significant challenge. The Advanced Communications Technology Satellite, an experimental on-orbit testbed, is pioneering new and advanced satellite technologies for this global information infrastructure. One of these key technologies is 900 mega-hertz wideband, Ka-band transponders. To use these wide bandwidth transponders, new, very high-speed modems are required. Motorola developed and has recently successfully tested a 696 mega-bit per second, burst modem over ACTS. The ability for the modem to burst permits the use of Time Division Multiple Access, a feature built into the spacecraft. This modem development is part of the ARPA/NASA High Data Rate earth station development being performed by BBN, Inc. and Motorola. Modems such as these developed by Motorola will allow satellites to be interconnected to terrestrial fiber optical networks. Satellites have the capability to extend these networks in a cost-effective manner to the most remote corners of the globe. End of Forwarded message --------------------------- Regards, - GAJ
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- FYI: Satellite - fiber modems David Farber (May 26)