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To: Bernard Levy who wrote (7111)	5/26/2000 1:15:00 AM
From: axial	Respond to of 12823

Hi, Bernard - If UWB is limited to in-building LANs (for which it seems ideal) then it seems to have a high probability of success. After some reading on the use of GPS for synchronization (amazing how many wired and wireless technologies use it; I had no idea) my principle concern was that UWB might interfere with PCS and CDMA synchronization. But the GPS sync appears to occur at the base station; the timing info is then modulated to the handset at the carrier frequency - which cannot be interfered with by UWB. The only possibilities for interference in that scenario seem to be - (a) If the building usage required reception of GPS info (b) If UWB propagation escaped the building boundaries I suppose you wouldn't want to use GPS location devices in that building, either. I'm a little lost on the whole question of where the UWB transmissions may, or may not, exceed the level of background noise. Regards, Jim

To: Bernard Levy who wrote (7111)	5/26/2000 1:48:00 AM
From: Henk Wondergem	Read Replies (1) \| Respond to of 12823

Hi Bernard How much better is CDMA than TDMA? Finally I caught up on some reading. It has been over a month that I visited this thread, lots of interesting ideas with a lot of sound technical explanations. I read uwcc.org putting a lot of Guilder's hype in question, stumbled on an article by Tom Bethell in the August 1999 issue of The American Spectator (follow spectator.org to archives and august 1999) that certainly questions his "unbiased knowledge of physics" His article ends with: But what about the possibility that faith wanes in a prosperous society, that people are more inclined to forget about God in a condition of material abundance? So that goodness becomes, somehow, less powerful? Here, I fear, we will have to await Gilder's book on religion, parts of which he has already begun to write. That would extend the canon, let's see, from Ti-Grace to...Amazing Grace? Needless to say it is far more critical of GG than the beautiful objectivity that Pat Mudge uses to question his motives. I always thought that GG over did his ravings of CDMA, and talking to an engineer I know who said that he was not aware of any major benefits of CDMA over TDMA that could justify a change in equipment. He felt is was more a question that CDMA was a newer technology and therefor had some advantages. He is by no means an expert on this topic, but found it doubtful that CDMA would be the death of TDMA. GG seems to have an incredible following that someone even found it necessary to start a "AT and T Short Squeeze Day" thread Subject 34726 QCOM TERN AVNX certainly did not do well the last few weeks, so it seems that some of the CDMA hype is just that? How much faster do you think CDMA will grow compared to TDMA? henk