Question about Garmin GPSMAP 76 GPS Receiver

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Garmin GPSmap 76 not acquiring satellites

My garmin GPSmap 76 will no longer acquire satellites, I have other Garmin GPS's which work just fine - it's just the 76 which wont acquire any. Any suggestions?

thanks

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  • DRHare May 17, 2008

    My Garmin 76S will aquire at least several satellites when unit is first turned on in open country (no trees or other obstructions), but soon loses satellite reception completely. I've even recieved several satellites with modearte reception in the upstairs of my house after first turning the unit on, only to lose all reception entirely after a couple minutes. I cannot seem to ever get it back when in the same location.

  • Eric Williamson May 20, 2008

    I too have had the same problem with 2 Garmin GPS 76 not collecting satellites anymore. We have approximately 18 Garmin 76 that we use at work and the setup is identical for all of them. I have also tried an external antennae on the units that aren't collecting satellites, but that does not work either.

    Eric


  • lesleygoul Jul 15, 2008

    My 3 year old Garmin 76 is no longer acquiring satellites. Does anyone have a solution? Do I have to chuck it out or can it be repaired?



    If it can be repaired, any idea of the cost?



    lesleygoul

  • breto33 Sep 24, 2008

    i have 2 gpsmap 76s models, and 1 works, but the other just started hanging up on the Acquiring Satellites screen, anyone got an answer yet?

  • canis11 Nov 10, 2008

    We have three of these units as well, within the past 4 months 2 of them have just stopped acquiring satellites! External antenna makes no difference. We have the 76S version. One of the three is still working... for now. Any insight to this (common) problem would be great!

  • Anonymous Mar 15, 2014

    backup garmin gpsmap 195

  • Anonymous Mar 29, 2014

    My Garmin GPSmap 62s shuts down when searching for or trying to send points

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You need to do an auto locate. This also corrects your time issues (wrong date and/or time will be corrected. To do an auto locate do the following.

  1. Start with the unit turned off.
  2. If you have a GPSMAP 76, GPSMAP 76C, or GPSMAP 76S, hold down the Page button. If you have a GPSMAP 76CSx or GPSMAP 76Cx, hold down the Zoom Out button.
  3. While holding down the first button (Page or Zoom Out), press and hold the Power button.
  4. Continue to hold the two buttons until the Satellite page displays. You can then then let go of the buttons.
  5. Finally, let the unit sit outside with a clear view of the sky. Allow about 20-40 minutes for the unit to acquire satellites.

Posted on Nov 24, 2008

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I had the same problem? GPSmap76S was hung up trying to AutoLocate. It just couldn’t find itself, and it just stopped working all of a sudden one day, while I was traveling. I spoke with Garmin about the problem, and they advised me of an ongoing problem with WAAS. I was told that I should "Disable" WAAS, because the signal from the WAAS satellites had been changed by the government, and Garmin had not yet put out a software update to address the problem, on the 76 units, anyway. Also said that an update "should" come out, in the future, however, no commitment or promise on that. Evidently, once your unit hits one of the WAAS signals, it scrambles up the receiver in the GPS, because mine sure went crazy. The support guy also said, that if this did not correct the problem, I might also want to try a "Master Reset". So here’s what happened.
I disabled WAAS, but this did not correct the problem. The unit was still lost out there somewhere, trying to AutoLocate, so I ended up doing the “Master Reset”. Please read up on this procedure before trying it, and understand that you “will loose” any settings that you might have made to the GPS, along with all waypoints, routes, tracks, etc., however, my maps actually remained in tact? This procedure will actually set the unit back, just as it was when it originally came from the factory. Once completed, you will then have to allow the unit to initialize it's self again, just as you did when the unit was new. If you have forgotten about doing that, it simply means that you need to set the unit outdoors and leave it “on” for a while (15 – 20 minutes), until it actually AutoLocates it’s self, or locks in on your current position. Once this is done, re-do your setting preferences, back to the way you had them before the Master Reset. At the very least, you’ll have to re-set it to the correct time zone, and tell it about daylight savings time. Note: It’s a very good idea to go thru first, and jot down your page settings and main menu settings, before doing this procedure, or the screens may not look familiar to you, once the unit resets. You think you’ll remember them all, but you won’t. But whatever, once you have done the “Reset” and “Initialization”, you must now hook the GPS up to the computer and reload your waypoints, routes, etc, back to the GPS. You did have them saved on your computer, didn’t you? Hope so… If so, you should now be good to go…………….
My unit now works like a champ, good as new, just not as accurate, due to WAAS being turned off. I still don't know if the WAAS issue, was part of the problem or not, but I do know that the Master Reset got the unit back to working immediately, allowing it to locate itself almost instantly. What a relief…………..it’s a little work, but it takes much less time than it took you to read this post…………..
Hey, when all else fails, call Garmin 1-800-800-1020. They are good guys and willing to help, in fact, I would advise you to call them before you do anything, so you can describe to them, exactly what your unit is doing. I am only relating my situation and what happened to me. Your situation may be different…….

Posted on Dec 13, 2008

  • reef runner
    reef runner Dec 13, 2008

    You can't change the date manually. That is controlled by the system. You need to perform an AutoLocate and allow the unit to sit outside with a clear view of the sky for 15 or 20 minutes. Once it locks onto your position, the correct time and date will be sent to your GPS. You may then have to reset the unit to the correct time zone and give it the correct "daylight savings time" information. This is the only way to correct the time or date on the unit, and by the way, this is one of the most accurate time pieces you will ever own. Excessive down time (not being turned on) is what screws up the time and date.

    Good Luck...........reef runner

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Weird .. I have 2 76s' and within a week they both developed this same problem. I noticed that the date on the unit is 4 days old ... but i can't figure out how to manually change the date.

Posted on Aug 18, 2008

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