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To: Dooker who wrote (7093)	2/29/2000 11:45:00 AM
From: engineer	Read Replies (1) \| Respond to of 13582

There is NO WAY that optical systems are NOT line of sight. Optical implies directly LIGHT WAVES, and these are by laws of physics, line of sight. As for fixed office, it may be that you already have a wide area network mobile PC card in your laptop (HDR) and to use it indoors you just use the same card with a lower power transmitter and the same coding. this scenario would lead to an overall lower cost. And in that environment, you would be able to use small repeater microcells enough to allow higher than the mobile bandwidth. Instead of using 1/10 of the HDR signal, an office worker might be able to get 1/2 or so. I agree that the inner office fixed market will be solved in a variety of ways, but then you can do this today wiht quite a few solutions. It is interesting why none of these have caught on. One used to be sold by NCR Corp. It was 900 Mhz and ran at something like 1 Mbps. It was realtivley cheap at about $500 per computer. I think it will be interesting to see what develops in the next year or two, but I think that each and every one of these has their own place and I do not see one dominating so much that they displace the other. DSL, Cable, fibre, T1, Broadband fixed, HDR, 3G. they all provide somewhat the same thing....access to the net. Now when you tradeoff costs, availability, easy on use, ease of installation, overall cost to install, flexibility....then you will have some consumer choice.

To: Dooker who wrote (7093)	2/29/2000 8:31:00 PM
From: Clarksterh	Respond to of 13582

CS - Dr. J. has given the impression several times that HDR has the potential for desktop internet access---that is, to be competitive with other forms of broadband internet access( in ASIA especially I thought.Maybe HDR requires less fiber optic infrastructure.) For any given data rate on a last mile link eventually wireless of some form will become cheaper than wireline. Maintaining a wireline is expensive, and should only be done when the dedicated link and the resultant high bandwidth is required. But there are lots of different wireless solutions, and, everything else being equal, a wireless solution designed for fixed apps is likely to be substantially cheaper per Mbps than a mobile system. Of course, it is always possible that mobile will get the upper hand due to economies of scale - as appears to have happened in WLL. However I'm not counting on it. I think 3g has a plenty big enough market in the mobile and semi mobile markets. Fixed is gravy. My point is that HDR,being applied in a mobile environment doesn't make it more competitive against fixed wireless--maybe down the road, but for now the all-in one mobile/home use seems impractical Speak for yourself (NOI). Many companies now give their employees only one computer - a laptop. Mine is one of those, and I'd love to have an 'always available' high bandwidth link for my laptop. And my personal next upgrade PC purchase is likely to be a laptop as well, and I would want an 'anytime' link for that as well. Clark