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    Re: Over-reliance on GPS
    From: Lu Abel
    Date: 2008 Nov 04, 09:46 -0800
    Carl, let's be careful here.   LORAN was primarily deployed in North America (I believe there was also some coverage in the Pacific due to US territories there and Japan also operated a chain).   Loran is being brought back in the US.  I don't know about Canada and I'm pretty sure it's not being resurrected in the Pacific.   So while it's great (I did a lot of precision electronic navigation using Loran way before GPS) Loran certainly doesn't provide the worldwide coverage provided by GPS.


    Carl Herzog wrote:

    On Tue, Nov 4, 2008 at 2:35 AM, bruce hamilton <bruce.hamilton@shaw.ca> wrote:

    In pre-GPS coastal navigation from my era we had Loran-C, radar, RDF,
    pelorus, gyro-compass, sextant, and the depth sounder.

    Well, most of those tools are obviously still available to the mariner who chooses to use them. RDF is gone, but LORAN is making a comeback. After several years of on-again, off-again funding, debate and deliberation, plans are now going forward to complete an upgrade to LORAN that will allow the system to serve as both a backup and an enhancement to GPS.



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