Question about Garmin GPS 48 GPS Receiver

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Garmin 45 no position.

I have just bought a Garmin 45 from USA as backup for my original Garmin 45 which works ok. Now in the UK it will not aquire satelites and the clock is showing the wrong time and year.

I have tried putting in my position and leaving it to search the sky overnight but still it has no position. ocasionally it appears to locate a satelite and then looses it again. Is it possible to download the almanac from my good unit via my laptop and upload it to the non-functioning unit?


Jon G.

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  • 2 more comments 
  • Jon Gale
    Jon Gale Nov 29, 2007

    I don't understand what you mean. My old unit is working but the new unit is not working in the same place.

    What do you think I can do to alter the time on the old unit?

    What can I do to make the old unit find the satelites and give me a position?

  • Jon Gale
    Jon Gale Dec 01, 2007

    I still have the problem. Can I re-load the almanack into a Garmin 45?

  • Jon Gale
    Jon Gale Dec 03, 2007

    Hi tech8, Yes I used autolocate and left the unit running all night with a good view of the sky. In the morning, no position and no satellietes aquired. Also the date and time shown on the USA purchased unit is very wrong.

    I only thought that it might be the almanac that has been lost due to flat batteries over a long period. Can this happen?

    I cannot access the almanac by pluging in my laptop, any ideas on how I might do this?

    I am begining to think that this might be a probblem that I will have to ask Garmin to fix for me.

  • Jon Gale
    Jon Gale Dec 05, 2007

    Hi Tech8,

    The Garmin 45 doesn't have a country mode. It is a marine gps and should be able to find its location anywhere in the world. It has no maps programmed into it, you have to plot your position on a paper chart. Pretty archaic huh?

    The roblem seems to be that the unit has lost its memory from being in storage without batteries for a long time, maybe some years. The unit does not even know what time, date r year it is in so I believe it has lost its almanac.

    If I travel more than 500 miles with my working unit, anywhere in the world, I just switch it to auto locate and within five minutes it knows where it is.

    I think it will have to go back to Garmin.



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Did you use the select country, or autolocate

Posted on Dec 01, 2007

  • 2 more comments 
  • Eugene Merritt Dec 01, 2007

    The old gps unit is set up for the uk
    and you want to transfer the almanac
    from the old gps to the new gps by
    copying the almanac from old gps to
    pc then copying from laptop to new gps
    is that correct

    Do you use the computer to download
    update for gps and then upload to
    gps unit

    If that is correct it is conceivable
    that it would work Don't beat me up
    if it doesn't work I doubt there would
    be any type of encryption problems
    or anything but I have never been
    in your particular situation if you
    aren't concerned over warranty or
    what not I would give it a try

  • Eugene Merritt Dec 02, 2007

    What did you do

  • Eugene Merritt Dec 03, 2007

    If you travel more than 500 miles
    with the unit deactivated then you will
    have to reinitiate to relocate your bearings

    Yes but it has to locate the country you are
    in.if the uk it has to have a map of uk or it
    it has to locate itself after the uk come up
    on the screen it has to recognize it in uk
    not usa.thats why you have to use country

  • Eugene Merritt Dec 05, 2007

    Maybe Radio Shack can help! They sell Garmin,also
    saw this link if you can find the same model in USA
    may be able to purchase at a lower price

    Don't forget to rate this



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