[time-nuts] From GPS World - Lightsquared has been given the goahead
Mark Spencer
mspencer12345 at yahoo.ca
Wed Feb 2 14:31:52 UTC 2011
Hopefully timing receivers using elevated gps antennas with band pass filtering
(ie. the 58532A or equivalent..) and a good sky view and strong signal levels
will be more resistant to out of band interference than a typical consumer grade
portable GPS with a built in antenna at ground level with a sub optimal sky
view. In my oppinion timing applications are likely to be one of the few GPS
applications where a reasonable mitigation path exists (ie. band pass filters
could be added between the receiver and the antenna, antennas with modified
radiation patterns could be used etc..)
Providing a solution for the GPS receiver built into my black berry will be
siginficantly more difficult in my oppinion.
----- Original Message ----
From: David J Taylor <david-taylor at blueyonder.co.uk>
To: Discussion of precise time and frequency measurement <time-nuts at febo.com>
Sent: Wed, February 2, 2011 12:17:27 AM
Subject: Re: [time-nuts] From GPS World - Lightsquared has been given the
goahead
>http://www.gpsworld.com/gnss-system/news/data-shows-disastrous-gps-jamming-fcc-approved-broadcaster-11029?utm_source=GPS&utm_medium=email&utm_campaign=Navigate_01_31_2011&utm_content=data-shows-disastrous-gps-jamming-fcc-approved-broadcaster-11029
>9
Sounds like the "planning" folk here in the UK who allowed high-power pager
transmitters right next to a satellite space frequency (135-137MHz), rendering
part of that band useless if you were near a pager transmitter. Except that
stopping GPS working will affect rather more folk than interfering with weather
satellite reception.
73,
David
-- SatSignal software - quality software written to your requirements
Web: http://www.satsignal.eu
Email: david-taylor at blueyonder.co.uk
_______________________________________________
time-nuts mailing list -- time-nuts at febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
More information about the Time-nuts_lists.febo.com
mailing list