http://hraunfoss.fcc.gov/edocs_public/attachmatch/FCC-08-260A1.pdf Just out, the rules the FCC was promising. Just like before, the report mentions numerous shorcomings discovered in receiver testing and also in WSD testing, including the severe reduction in sensitivity of the auto-sensing mechanism when a TV station operates in an adjacent channel, including interference to cable receivers. So, immediately after listing this litany of problems, the report says, "32. As supported by the record in this proceeding, we conclude that low power devices can and should be allowed to operate in the TV bands on frequencies that are not being used by authorized services." Huh? Read it for yourselves, starting at about paragraph 24. If I had written the report, I would have said, "In spite of these findings, with appropriate extra safeguards, we conclude ..." At least then, the report wouldn't sound quite so disconnected. Power levels allowable have not changed from the previous report. But there is one new wrinkle in particular that I think does help, one extra safety catch. For the portable devices, they define two modes of operation now: independent mode and client mode. When in independent mode, these devices must operate with geo-location capability. When in client mode, they cannot choose a frequency channel. Client mode means you tune to a frequency channel someone else has chosen. "8. Fixed Devices. Fixed devices will be allowed to communicate with other fixed devices and with personal portable devices. These devices will be required to determine their geographic location through an incorporated geo-location capability or from a professional installer and to access and register with a database system that contains records of protected services ..." "9. Personal/portable Devices. Personal/portable devices will be allowed to communicate with fixed devices and with other personal/portable devices. These devices will be allowed to operate in two different modes: 1) Mode I - client, whereby a personal/portable device is controlled by a fixed or a personal/portable device operating in Mode II that has determined the available channels in the area and/or 2) Mode II - independent, whereby a personal/portable device determines the available channels using its own internal geo-location/database access capabilities." Canadians and Mexicans shouldn't worry, though. These devices cannot operate in the border regions (32 Km from Canada, 40 Km from Mexico in UHF, 60 Km from Mexico in VHF). Also, anyone complain that 6 MHz is not much channel bandwidth? Never fear. The FCC allows any of these devices to use multiple 6 MHz bands. Bert _________________________________________________________________ Stay up to date on your PC, the Web, and your mobile phone with Windows Live http://clk.atdmt.com/MRT/go/119462413/direct/01/ ---------------------------------------------------------------------- You can UNSUBSCRIBE from the OpenDTV list in two ways: - Using the UNSUBSCRIBE command in your user configuration settings at FreeLists.org - By sending a message to: opendtv-request@xxxxxxxxxxxxx with the word unsubscribe in the subject line.