Question about Garmin GPSMAP 168 Sounder GPS Receiver

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Unit does not locate satalites. otherwise it is like new and works fine on the sounder and simulation

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  • jvkeahey Jul 14, 2010

    Can you give me names of repairers in my area for this problem?

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2 Answers

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I've recently had the same issues as others here My unit is about 2 yrs old. And just went AWOL searching for satellites.
I resolved this by accident by doing the following:
On short notice, I could not purchase a external antenna from a brick and mortar store, so I thought I'd use some wire.
1) Hook GPS to Garmin website and down loaded latest 4.7 ver. I was using 4.1 2) Perform the hard reset (push down on upper left of screen, hold, power and wait until it asks if you want to go in maintenance mode. There are posts here or google www.sharcnet.com. This website will describe exactly what to do to clear out the old satellite date by performing the hard reset . Once the unit thinks it's back in Kansas City then I did the following; 3) Take a piece of 14 gauge wire, multi strand, use just one individual strand, cut all the others off, so the wire doesn't touch the outer part of the antenna input connector and short. This piece of wire will act as the external antenna. 4) Insert that single strand into the center of the GPS antenna input. ( I only used a 6" piece of wire and btw, the wire has the protective casing on it. I didn't use a bare wire) 5) touch the signal strength bar on the GPS to get you into the satellites screen. 6) For me, the bars immeadiately started coming up and then filled. 7) I took the small wire out and my unit continued to work with the flip up antenna. I suspect that once the unit reset = re-flashed the new satellite info. into the GPS. Things went back to normal.
8) Turned unit off and on a couple of times to verify. My unit continued to worked normally with the flip antenna.
9) Tested over the last several days. No indication of dropped satellites or lost coverage so far.
No Promises here. This just worked for me. I hope it works for you. There are a lot of unhappy owners out there.

Posted on Jul 14, 2010

  • jvkeahey Jul 14, 2010

    Thank You, but I have questions.

    I have an external antenna, does that change all this wiring?

    How do I connect to a computor to go to web site

  • ikechukwu joshua
    ikechukwu joshua Jul 14, 2010

    Hi,will not any how repairer for you.

    Go to the website of the product manufacturer of the product you are using, Contact the service care, they will assist you better to guide you on the right steps to take..Not too sure of road side repair on this.

    I think call is free.

    Hope am making sense.?

    Take care.


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Turn the unit off then turn on after few minutes.Then recheck.If still the same problem,then check out if there are too many tall buildings or too much covered area to the place where the unit is.If it is that this happens sometimes.But if there is nothing like that but still problem in searching satellites then its the electrical problem of the circuit board in the unit.Its not catching signal.Get it checked by the Garmin,because only Garmin deals with low or no satellite problems in your gps,.It requires chip reset and replacement if required. Thanks. Keep updated for any more query. You can rate this solution and show your appreciation.

Posted on Jul 13, 2010

  • jvkeahey Jul 13, 2010

    turning on and off will not help, it never works. No buildings involved, it's a marine unit. Garmin will not work on it because it is 10 years old.

    Is there any one that will work on it?

  • raj somaiya
    raj somaiya Jul 15, 2010

    You will have to get help from the local dealers dealing in garmin product.As the product is 10 years old.Then most probably its the problem of internal microprocessor board.But it requires proper professional to deal with this case.He should be aware of the power and supply required by the board.The garmin products supplier in your area might help in this case.
    You will have to do some proper inquiry.
    Thanks for keeping updated with your query.

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