Since this issue is a concern, write the FCC oversight committees:
House of Representatives: http://democrats.energycommerce.house.gov/index.php?q=subcommittee/subcommittee-on-oversight-and-investigations-0 (note: the "democrats" part of the URL is because the house.gov site is broken into majority and minority sites and the current house majority has apparently not gotten their ducks in a row yet) Senate: http://commerce.senate.gov/public/index.cfm?p=CommunicationsTechnologyandtheInternet On Wed, Feb 2, 2011 at 9:29 AM, Don Latham <[email protected]> wrote: > sooooo, once the safety of life equipment is in place, with controlled > purchase of receivers no doubt, the consumer signals can be shut off at > will. And we're SOL. Neat. > cynical Don > > Mark Spencer >> That's quite possible, another option is that aviation receivers may err >> on the >> side of caution and not use GPS signals that are considered to be degraded >> beyond a certain level. This is just speculation on my part. >> >> As other posters have pointed it seems a bit ironic that shortly after >> shutting >> down Loran in the US this issue emerges, although I seem to recall there >> is a >> move towards a new GPS frequency band for safety of life applications (the >> L5 >> Signal IIRC ?) >> >> Your comment about the improvements in signal processing is a good one and >> pondering this issue a bit more I wonder how much advancement has occurred >> in >> timing receivers over the years versus consumer devices which likely have >> a >> shorter product cycle. This may lead to more issues in timing >> applications. >> >> >> >> ----- Original Message ---- >> From: jimlux <[email protected]> >> To: [email protected] >> Sent: Wed, February 2, 2011 6:45:29 AM >> Subject: Re: [time-nuts] From GPS World - Lightsquared has been given the >> goahead >> >> >> what was interesting is that the jamming/fail to get fix was at a closer >> distance for the consumer receiver than for the FAA approved receiver >> for aircraft. Maybe it's better signal processing in the (presumably >> newer) consumer receiver. >> >> _______________________________________________ >> time-nuts mailing list -- [email protected] >> To unsubscribe, go to >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. >> >> >> >> >> _______________________________________________ >> time-nuts mailing list -- [email protected] >> To unsubscribe, go to >> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts >> and follow the instructions there. >> > > > -- > "Neither the voice of authority nor the weight of reason and argument are > as significant as experiment, for thence comes quiet to the mind." > R. Bacon > "If you don't know what it is, don't poke it." > Ghost in the Shell > > > Dr. Don Latham AJ7LL > Six Mile Systems LLP > 17850 Six Mile Road > POB 134 > Huson, MT, 59846 > VOX 406-626-4304 > www.lightningforensics.com > www.sixmilesystems.com > > > _______________________________________________ > time-nuts mailing list -- [email protected] > To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts > and follow the instructions there. > -- --Eric _________________________________________ Eric Garner _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
