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Technology Stocks : LAST MILE TECHNOLOGIES - Let's Discuss Them Here -- Ignore unavailable to you. Want to Upgrade?

To: P2V who wrote (10999)	4/17/2001 11:49:37 PM
From: Peter Ecclesine	Respond to of 12823

Hi Mardy, The FCC will issue a Part 15 NPRM in the next few months, inviting comments on spectrally efficient modulations, among which is OFDM. It will probably take the rest of the year to respond, reply and make new rules. The first Part 15 device was approved in 1988, and the 15.247 spread spectrum rules were a compromise between NTIA and FCC. Some of the early frequency hoppers were adaptive, listening to the channel before speaking, and choosing a different channel if that one was noisy. The FCC told the manufacturers 'don't do that', so adaptive frequency hopping was discontinued. Many of the current 'interpertations' will be discussed when the FCC NPRM comes out. There is an FCC Part 15 presentation, 01/212 at www.ieee802.org/11 IEEE 802.11 Docs petere