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To: Paul Frantzis who wrote (2737)	10/25/1997 1:56:00 AM
From: Al Gutkin	Respond to of 10227

Hi Paul: I just wanted to add some controversy to the posts. However, I do know something about radio communication. Arnie jumped all over me about my post, however; I may be more right than given credit. How's this for a general comparison. 1. two way radio communication came first. a. Big handsets b. push to talk, no simultanious communication c. good for remote areas, because transmission is not line of sight. d. can enable dispatching. d. subject to interference. (spelling?) 2. cellular a. line of sight, needs many relay stations, 20 mi. apart. b. not good for remote areas c. lighter handsets d. no push to talk, simultanious communication. e. relies upon a global network of cooperative providers. f. cannot provide dispatch. 3. what I call enhanced two way radio....Nextel a. basic two way readio handset with cellular capability within the same handset. When in two way radio mode, push to talk, when in cellular mode, acts like a cellular phone. b. larger handset than cellular, because of the power needs. c. best of both worlds, but limited to cities covered by Nextel networks, big cities and major highways. c. still subject to interference, transmissions are not as clear as cellular. 4. global sat. cellular. a. big battery packs, they need power to transmit to the sats. b. talk anywhere in the world c. cost $ 3500 each. d. still limited to basic cellular capabilities, not dispatch. Food for thought. If Direct TV can broadcast to every TV set in the country that has an 18" antenna, and a $ 3500 radio can transmit up to the sats, then dispatch, or a form of dispatch is not far off. Hows that for accountant talk? Al