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    Re: New inovation in astro navigation?
    From: Jeremy C
    Date: 2010 Aug 4, 09:13 EDT
    The solar maximum refers to the sunspots which actually greatly assist High Frequency propagation.  We have been on a prolonged sunspot minimum (for months there wasn't a single sunspot) and are finally starting to get sunspots again, this time rotating the other direction meaning a new cycle.  These sunspots do not cause any loss of propagation in the SHF range (where GPS signals reside.)  A solar flare directly aimed at the earth is another matter and that blacks out certain frequency ranges, but I am not sure if that includes SHF or not at the moment.
     
    I don't think that the telegraph lines were "shorted" as we would know the term, however, I am sure that some electricity was induced in the long wires during a large flare that would give that impression.  Much like moving any wire through an electro magnetic field.  It probably made the sounders go nuts as the power caused the magnets to operate on their own, but this is only speculation.
     
    Getting back to the original post, I will certainly use every means of navigation at my disposal to fix position, but I also never want to be left with a single method if it is at all avoidable.  Celnav is a secondary method at this point, but one that needs to be practiced in order to ensure accuracy.
     
    Jeremy
     
    PS:  Frank, the code to "laugh" is "hihi" which is a series of 12 dots.  It is still used by morse code operators today among other shorthands that are quite different from text messaging and the like on computers.  Sometimes I forget myself and mix them up but that's another story.
     
    In a message dated 8/3/2010 3:56:23 P.M. Eastern Daylight Time, gregr_ingest@yahoo.com writes:
    According to the article that Gary posted (and confirmed by other sources),
    the last solar maximum occurred in 2001. I wasn't using GPS at that time,
    but I don't recall hearing anything about massive outages back then. Still,
    this should reinforce the need to have a backup for any important system -
    especially one as critical as navigation.

    --
    GregR


    On 8/3/2010 12:08:21 PM, Philip (philip.lange@albemarleweb.com) wrote:

    > Perhaps we could all turn on our
    > GPS's set them up to track and check
    > for anomalies over the next couple of days?
    > Philip
    >
    > On Tue, 2010-08-03 at 18:45 +0200, Gary LaPook wrote:
    > > Well this is perfect timing:
    > >
    > > http://www.foxnews.com/scitech/2010/08/03/spectacular-northern-lights-signals-sun-waking/
    > >
    > > gl
    > >
    >
    > --
    > S/V ORYOKI
    > Currently lying in Beaufort NC
    >
    > "There's
    > no point in making a plan if
    > you're going to pretend to follow it!"




       
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