On Fri, Feb 12, 2010 at 07:29:39AM -0800, Peter Putnam wrote:
> The antenna required on an aircraft must be vertically polarized and
> of significant length. The route from the US west coast to Hawaii
> had no coverage in the middle one-third of the route at night.
> Coverage was even less during daylight hours.
Not so;
Designs for H-field antennas for LORAN and GPS exist, and
have been prototyped.
eLORAN receivers perform on the order of unassisted GPS,
and combined receivers (eLORAN+GPS) beat the accuracy of either.
The problem with the -C shutdown is it means they having
nearly finished the upgrades, will never run the new system.
It's going to cost more to tear it down than finish the modernization.
Cheers,
--msa
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