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To: Art Bechhoefer who wrote (105395)	9/22/2001 10:56:02 PM
From: S100	Read Replies (1) \| Respond to of 152472

Wonder how much they are being paid to pump the stock. I have not looked into it very much but it seems they are pushing a software radio for use in base stations. Changing from GSM to EDGE to WCDMA or others requires different receivers and transmitters. Much of the effort in the phones and I believe base stations also is the software required to process the signal. There is special hardware to do some of the processing but most is done in software. A software controlled radio would not eliminate much if any the current software. It would require more software to control the radio plus the software for each type of RF link. The management team seems to be a little on the light side. freeedgar.com While looking over the web site of David Farber I found some audio of one of his lectures. He talks for a few minutes on software defined radios, but it seems to be pretty far out in the future. He is talking about mobile end of the link, however. cis.upenn.edu First box on link, hard to use but gives sound. Notes US builds a fence around spectrum, Others, such as Finland allow anyone to go onto private property as long as they do not damage it. Software radio From the antenna down is software controlled, it sniffs the air and if it comes up in Finland, decides it is GSM, checks the two bands and comes up in the least congested band. It might hunt around for some unused spectrum and park there until the owner shows up and then it will quietly walk away. Then will find some other unused spectrum and use that. Military has been using them, how to make them cheap, etc, use them where they will do no damage, and eventually you will have to get out of that band and change to another. How to change the regulatory environment SDR was considered too expensive, would not work, now maybe it might work, thinking about how we would use it.