Hi Urban canyons do indeed exist and there are a lot of them. As you look for smaller and smaller ones, you obviously find a lot more of them. Other services have the same issue and they can economically justify a few thousand transmitters to cover these holes. These guys are going for > 10X what anybody else does. Either they are covering a lot of very small holes for not a lot of return, or they are doing something else with 90% of the transmitters.
My concern about the GPSDO's is real. We could see a loss of the current frequencies for precision time use. An L5 satellite is up there now, it's not going to have the same problem. The yet unmentioned magic plan may be to migrate the world to the new frequency. Selling everybody everywhere in the country brand new GPS stuff is no more crazy than any of the rest of this. Bob -----Original Message----- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Robert Atkinson Sent: Thursday, March 03, 2011 12:49 PM To: Discussion of precise time and frequency measurement Subject: Re: [time-nuts] latest on the lightsquared 'saga' What gets me (I'm an outsider in the UK), is that they seem to have used the excuse of Urban Canyon lack of space based broadband to hi-jack the frequencies for ground use. What's the betting 99% of the traffic is ground based, not space? Even though the Urban Canyonites could of course use fibre-optic broadband. Robert G8RPI --- On Thu, 3/3/11, Bob Camp <li...@rtty.us> wrote: From: Bob Camp <li...@rtty.us> Subject: Re: [time-nuts] latest on the lightsquared 'saga' To: "'Discussion of precise time and frequency measurement'" <time-nuts@febo.com> Date: Thursday, 3 March, 2011, 17:10 Hi This stuff is obviously on the fast track to somewhere. There is no practical way to come up with the information needed in the time allowed. There's a train wreck out there in somebody's future. Has anybody seen an actual map of where they plan to deploy all 40,000 these 1.5KW transmitters? I'm sure that at least 2,000 of them will be in tunnels and other RF dark caves. It's the other 38,000 that I'm wondering about. Bob -----Original Message----- From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On Behalf Of Pete Lancashire Sent: Thursday, March 03, 2011 1:27 AM To: Discussion of precise time and frequency measurement Subject: [time-nuts] latest on the lightsquared 'saga' http://www.gpsworld.com/survey/surveying/lightsquared-saga-and-recent-solar- activity-11155?utm_source=GPS&utm_medium=email&utm_campaign=Survey-Scene_03_ 01_2011&utm_content=lightsquared-saga-and-recent-solar-activity-11155 _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.