From:
Arturo Pascalin <apascalin@yahoo.com.mx>
Sent: 2/7/2011 6:59:52 PM
To:
gpsstash@yahoogroups.com, SATXgeocachers@yahoogroups.com
Cc:
Bcc:
Subject:

4G BROADBAND MAY JAM GPS




4G BROADBAND MAY JAM GPS
The GPS industry is warning that a proposed broadband Internet network could
effectively jam GPS signals. Further, it says it has data showing that any of
the anticipated 40,000 (yes, four zeroes) transmitters can make a Garmin 430 go
dark at a range of five miles. GPS World calls the proposal by LightSquared
"disastrous" and warns of major problems for all kinds of GPS-reliant devices.
The publication says a study (PDF) by GPS-industry stakeholders, including
Garmin, determined the LightSquared network "will create a disastrous
interference problem for GPS receiver operation to the point where GPS receivers
will cease to operate (complete loss of fix) when in the vicinity of these
transmitters." That, says the report, "will deny GPS service over vast areas of
the United States." The industry told the Federal Communications Commission of
the potential problem but the FCC approved the multibillion-dollar effort, which
will carry 4G broadband throughout the country. In a podcast interview with
AVweb, LightSquared spokesman Jeff Carlisle said the broadband system won't
affect properly filtered GPS devices and his company is both mandated (by the
FCC) and anxious to work with the GPS industry to identify devices that might be
affected.

Related Content:
* PODCAST: LightSquared's Jeff CarlisleMore...

AVwebFlash: Monday, February 7, 2011‏





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