[time-nuts] From GPS World - Lightsquared has been given the goahead
Mark Spencer
mspencer12345 at yahoo.ca
Wed Feb 2 16:01:22 UTC 2011
That's quite possible, another option is that aviation receivers may err on the
side of caution and not use GPS signals that are considered to be degraded
beyond a certain level. This is just speculation on my part.
As other posters have pointed it seems a bit ironic that shortly after shutting
down Loran in the US this issue emerges, although I seem to recall there is a
move towards a new GPS frequency band for safety of life applications (the L5
Signal IIRC ?)
Your comment about the improvements in signal processing is a good one and
pondering this issue a bit more I wonder how much advancement has occurred in
timing receivers over the years versus consumer devices which likely have a
shorter product cycle. This may lead to more issues in timing applications.
----- Original Message ----
From: jimlux <jimlux at earthlink.net>
To: time-nuts at febo.com
Sent: Wed, February 2, 2011 6:45:29 AM
Subject: Re: [time-nuts] From GPS World - Lightsquared has been given the
goahead
what was interesting is that the jamming/fail to get fix was at a closer
distance for the consumer receiver than for the FAA approved receiver
for aircraft. Maybe it's better signal processing in the (presumably
newer) consumer receiver.
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