[time-nuts] latest on the lightsquared 'saga'

Bob Camp lists at rtty.us
Thu Mar 3 18:06:11 UTC 2011


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-bounces at febo.com [mailto:time-nuts-bounces at 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 <lists at rtty.us> wrote:


From: Bob Camp <lists at rtty.us>
Subject: Re: [time-nuts] latest on the lightsquared 'saga'
To: "'Discussion of precise time and frequency measurement'"
<time-nuts at 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-bounces at febo.com [mailto:time-nuts-bounces at 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

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