Aucbvax.7129 fa.telecom utzoo!decvax!ucbvax!telecom Mon May 10 18:12:40 1982 TELECOM Digest V2 #58 >From JSOL@USC-ECLB Mon May 10 18:10:44 1982 TELECOM AM Digest Tuesday, 11 May 1982 Volume 2 : Issue 58 Today's Topics: Vintage PBX - Pass Or Pay Little Locality Names On Phone Bills Mobile to Satellite On 20 Watts And 18" Antenna. ---------------------------------------------------------------------- Date: 5 May 1982 2218-PDT (Wednesday) From: lauren at UCLA-Security (Lauren Weinstein) Subject: vintage PBX To: ihnss!ihuxv!lambert at Berkeley Unless you can get the thing CHEAP (and I mean *CHEAP*!) I'd pass on it. Such oldies will of course be totally relay based and have no touch-tone support. Probably not of much value except as a historical piece. Actually, I might like to have something like that around -- but then I'm the sort of person who gets jollies watching Strowger switches. --Lauren-- ------------------------------ Date: 7 May 82 7:52:03-EDT (Fri) From: Carl Moore (VLD/VMB) Subject: place names, phone bills, etc. Has anyone ever dealt with the topic of what place names appear on phone BILLS alongside each prefix? (Lists are provided for some area codes in the phone books, but I do see occasional, interesting discrepancies between those sources and the phone bill.) ------------------------------ Date: 9 May 1982 2312-PDT Sender: GEOFF at SRI-CSL Subject: Mobile to Satellite on 20 watts and 18" antenna. From: the tty of Geoffrey S. Goodfellow Reply-To: Geoff at SRI-CSL CELLULAR RADIO NEWS, Page 5-6, May 1982 --------------------------------------- Outside of Denver's Currigan Hall--where Land Mobile Expo '82 was in progress--General Electric Co. consulting engineer Roy Anderson placed a magnet-mount 18" ham radio antenna on the top of his car. The lead-in wire was attached to a small, 20-watt "alphanumeric communications system," as Anderson termed it. He typed a message onto the terminal and pushed a button. In the wink of an eye, his message flew 23,000 miles through the ether to National Aeronautics and Space Administration's ATS-3 satellite, which relayed it to GE in Schenectady, N.Y. Within moments, GE relayed back that the message had been received. ATS-3 is a 15-year-old, obsolete satellite, well past its prime. Transmission was in the 2 meter band--with a 150 MHz uplink and a 135 MHz downlink. The 15-year-old ATS-3 is a "puny" satellite, Anderson said. It's about the size of an oil drum and is equipped with 8 whip antennas that offer virtually no signal gain. Most of the signal was lost somewhere off in space. The point of the demonstration was to show that "mobile-to-satellite communications at low power with a simple antenna are possible even under the worst of conditions." Anderson and Jerry Freibaum, program manager for technical consultation services with NASA, delivered papers at Land Mobile Expo in which they explained how "a modern, specially designed satellite equipped with a large dish antenna--perhaps 150' to 200' across--could be used to augment terrestrial-based cellular and non-cellular services" and this extend mobile services to even the remotest portions of the globe. To accommodate the mobile satellite idea, NASA proposed during the cellular and other docket proceedings that the 20 MHz set-aside by the FCC as a reserve be slightly rearranged. The FCC, however, has thus far rejected the idea. "The FCC in effect has said there is no need for the service," Freibaum explained. "All we're asking the FCC to do is preserve the option [for a mobile satellite service]" he said. NASA studies indicate that annual revenues for the satellite-aided service 6 years after launch may reach $200 million to $1 billion for high-capacity systems serving more than 1.5 million users. The estimated internal rates of return may exceed 30%, according to an investment analysis conducted by Citibank, N.A., for NASA. "The only way we're going to get the FCC's opinion changed is for those of you who consider a mobile satellite service in your interest to "file some sort of letter with the Commission stating that you are in sympathy with maintaining that option," he told the land mobile radio audience. Freibaum indicated that NASA will be filing with the FCC, by the end of May, a petition for rulemaking to allocate frequencies for a Land Mobile Satellite Service. (Jerome Freibaum, 600 Independence Ave. SW, Washington, DC 20546, 202/755-8570; Roy E. Anderson, Consulting Engineer, General Electric Co., Corporate Research and Development, Schenectady, NY 12345, 518/385-2746.) ------------------------------ End of TELECOM Digest ********************** ------- ----------------------------------------------------------------- gopher://quux.org/ conversion by John Goerzen of http://communication.ucsd.edu/A-News/ This Usenet Oldnews Archive article may be copied and distributed freely, provided: 1. There is no money collected for the text(s) of the articles. 2. The following notice remains appended to each copy: The Usenet Oldnews Archive: Compilation Copyright (C) 1981, 1996 Bruce Jones, Henry Spencer, David Wiseman.