Hi,
First I'm in the UK so this does not directly affect me. I do have some
slightly independent comments.
Firstly the Garmin tests seemed very reasonable and erred to favor
LightSquared. They were free field in an anecohic chamber. There was an L1
notch filter in the output of the LightSquared simulator. I'd guess the
Aviation GPS was worse because of A and older design and B It will only give
valid outputs if it is sure the signal is OK.
On the politcal side, LightSquared are supposed to be supplying nationwide
satellite service. The ground stations are "fill in" for heavy use areas. This
is seamless with the sat service so they "had" to be the same band. So they got
permission to use the band. What is the betting that once the service is
established they will drop or price hike the sat service? That would save them
the $115,000,000 per year that they are paying Intelsat.
Robert G8RPI.
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