Question about Garmin Gpsmap 498, External Antenna With Dual Frequency Transom Mount Transducer

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How do you get garmin gps map 498 to acquire satellites?

I turn on my garmin gps map 498 and it powers up normally and pages through all the menus ok but will not acquire the satellites even after 20 minutes. This is the model with the internal antenna and its out in the cockpit. Any suggestions?

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6 Suggested Answers

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Posted on Jan 02, 2017

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SOURCE: GPS 60 unit shows "Searching the Sky" status message all the time

The "New Location" fix above brought my GPS 60 back to full operation. I did reload the GPS software from Garmin but the recovery depended on well charged batteries and as above: turn the unit on
press MENU button
scroll to "New Location"
wait 10 minutes for the GPS to recover.

Posted on Apr 02, 2008

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SOURCE: not acquiring satellites

my GPS map 60CSX is not acquiring satellites. It was working fine until most recent power up.

Posted on Jun 02, 2008

  • 1 Answer

SOURCE: Garmin GPSmap 76 not acquiring satellites

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

  • 1 Answer

SOURCE: Garmin Nuvi GPS won't acquire satellites

There is a known hardware bug in the Garmin 600 series relating to the detection of the connection of an external antenna. The GPS is supposed to do this automatically and when it detects an external antenna plugged in it switches out the internal antenna. Unfortunately, this circuitry doesn't work correctly in some versions of the unit and sometimes it get's comfused and thinks there is an external antenna connected when there is not. This causes the behavior you describe because, for all practical purposes, there is no antenna connected.

Garmin can fix this and they've been known to fix it even on units that are out of warranty. There is a fix that can be done by someone with the right equipment and know-how which requires disassembling the unit and bypassing the antenna switch. Not to be attempted by anyone not experienced in micro surface mount PCB re-work.

Wingflinger

Posted on Dec 07, 2008

  • 1 Answer

SOURCE: Garmin 498 - trouble finding satellites

Push power/menu together or power/page together. the whoole unit will reset. you will lose all saved data but this may help

Posted on Dec 29, 2008

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Push power/menu together or power/page together. the whoole unit will reset. you will lose all saved data but this may help

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