GPS Avionics vs Lightsquared

RTCA is a company that prepares requirements documents for aircraft
communications equipments. They will soon report the results of FAA
sponsored testing recently conducted at White Sands, New Mexico. An
executive summary of the report was recently released:

http://www.insidegnss.com/node/2628

The report is expected to conclude:

'Based on tests of four FAA-certified aviation receivers =97 out of
approximately 50 models now being flown on board aircraft in the
national air space =97 and, the effects of a five-megahertz-wide
transmission from a single-city base station deployment at the upper
end of the LightSquared allocation =93is expected to be complete loss of
GPS receiver function.=94'

--- CHAS

On 2011-05-31 18:22 , HIPAR wrote:
f

No surprise there. I doubt one could build a certified airborne=20
receiver that wouldn't get jammed by the LightSquared system.

--=20
gmail originated posts filtered due to spam.

Alan Browne wrote:
For every month that passes without somebody at a high enough level
saying: "Enough is enough!" and stopping this plan in its tracks, I get
more and more amazed.

Lately I've been thinking that the only possible explanation must be
that Lightsquared is looking upon this a simple case of legal blackmail:

"We have a valid license, but if you pay us enough we might be willing
to reconsider."

Just $1-$5 per GPS receiver currently deployed and sold in the future
would be a nice windfall, right?

Currently we're in the "Who blinks first?" phase...

Terje
PS. If this braindead plan actually gets deployed then I'll really enjoy
knowing that the US is paying for a amazing navigation system that is
only dependable outside the US.

--
"almost all programming can be viewed as an exercise in caching"

On 2011-06-01 03:58 , Terje Mathisen wrote:
of
er

:

They don't have a valid license at all. They do, unfortunately, have a=20
fast track to certification that doesn't follow the FCC process.


There aren't that many airborne GPS receivers that such a shakedown=20
would be profitable. Other uses of GPS can more easily avoid the=20
LightSquared fiasco signal in practice - or at least not lose guidance.


I get the distinct impression that the aviation segment of the industry=20
is (all so slowly) getting its hackles up and will be sure to embarrass=20
the right people if the LightSquared situation persists.

For example, "After a laissez-faire attitude led us to the BP spill, is=20
the government really considering actions that could lead to a 747 full=20
of people missing a runway and crashing? Really?"

y

When American businesses decide to roll the government, outcomes can be=20
tragicomic.

--=20
gmail originated posts filtered due to spam.

x-post to Garmin -

SO - who do we write ??? FCC commish ??