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To: JMD who wrote (24898)	3/25/1999 2:36:00 AM
From: Clarksterh	Read Replies (1) \| Respond to of 152472

Mike However, when the topic is satellite telephony a la Globalstar, then I assume we have signals going all over cyberspace and in that case CDMA works its magic, i.e., provides greater spectral efficiency [and causes Iridium's stock price to fall off a cliff]. How am I doing? Pretty good. Globalstar and other cell systems are probably best described as multi-point to multi-point, and they suffer from lots of self interference. CDMA is a good choice in any system with lots of [non-gaussian or self-induced] interference, ergo ... . Clark PS Strictly speaking, the particular scenario you gave is actually point to multi-point, but in any case it does not involve multiple transmitters interfering with one another and therefore CDMA loses many of its advantages.