Question about Garmin GPSMAP 3006C GPS Receiver

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Lost remote GPS connection

My unit usually connects to the GPS 17 antenna and then loses the connection in about 30 seconds or less. Often times it won't connect at all now. I checked all my wiring connections and re-soldered three: Port 4 in, Port 4 out, Accessory. After that the unit stayed connected for afew hours before it stopped, but now its back like it was. Power is never dropped. I've tried to unscrew the top from the antenna but have been unsuccessful. I'm afraid to force it. I have not yet opened the back of the unit to check connections there. I'm in Tonga and there are no technicians within a few hundred miles. The problem has been slowly getting worse over the last 3 weeks or so. The unit is a 2005. Hope you have some ideas. Thanks.
Chris Baxter

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6 Suggested Answers

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SOURCE: Garmin ique 3600 hot sync issues

I had the same problem. Obtained no help from Garmin - $200 to repair.

I purchased a $7.00 IRDA (infra red) - USB device; set my Connection to IR - PC and have been able to sync without any problems. However even withupdates I have not been able to get the cradle - PC connection to work. This is not a problem however since I now use the IR connection all the time.

You must touch the screen hot sync logo not the cradle button to start the sync process.

Posted on Feb 26, 2008

SOURCE: When GPS is turned on unit locks up

I had the same problem and was able to fix it by ugrading to latest ver 6.

Posted on Sep 19, 2007

SOURCE: Garmin gps

you must have the garmin in data transfer mode/ menu-activesetup-data transfer

Posted on Dec 02, 2007

  • 1 Answer

SOURCE: Garmin ique 3600 hot sync issues

If your unit has a memory card installed, remove it and hot sync again. Follow reset prompts and everything should reappear. Good luck.

Posted on Sep 19, 2008

  • 1 Answer

SOURCE: Garmin gps

trying to get street updates and an extra memory card / can not do it on the computor?

Posted on Nov 17, 2008

  • 1 Answer

SOURCE: When GPS is turned on unit locks up

I had losts of lock ups when flipping on the GPS - almost ready to get rid of the Garmin IQUE 3600 since it hasn't worked well for over a year. Sometimes it works a short time with the GPS; other times it was instant lock up when searching for satellites.

I took many steps to isolate the issue, and then added complexity to the equation: update to r6 (no change), hard reset, no user data on IQ3600 during testing, use only internal drive, only use basemap lite on internal drive, only use 1 local city on internal drive, load other maps on external card. Each time I went outside and flipped on the GPS to see if that was affecting the lock up.

Then I played with the GPS settings. The factor that seems to solve the issue: TURN OFF WAAS - it is intended to improve accuracy to 9 ft but it seems to have a bug.

Garmin
Ique 3600
Palm OS Release 5.2.1r6
GPS lock up crash bug

Posted on Feb 03, 2009

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External antenna - Garmin 25MCX low profile remote GPS antenna

I have been experiencing the same problem many have been having with the Nuvi 6xx and 3xx series giving an error message “Lost satellite reception”.

My problem started mid April 2008 and got progressively worse. I would use my GPS on weekends and it would work perfectly for the first 10 – 30 minutes and then would loose satellite reception, rendering it useless.

I bought my Nuvi 660 when it first came out in October 2006 for just under $700 and is now out of the 1 year warrantee.
I called Garmin Technical Support and we checked my Software version (4.40) and more importantly my GPS SW version (3.00). According to the tech I had on the phone, the GPS SW version was more important then the Software version. It was in fact already updated to 3.00, I did master reset, after master reset, but regardless, nothing helped.

I contemplated what I should do.
Return mine and get a refurbished unit from Garmin for $225 with only a 90 day warrantee?
Buy a new Nuvi 660 for around $300
Buy a new Nuvi 2xx series with fewer features for $200 to $275.
Buy a Megellian GPS?

I read through this forum and came across one person that was told by Garmin “that they are aware of an issue with some Nuvis involving the failure of a diode in the unit that senses whether or not an external antenna is connected.” Apparently this diode failure is caused from the high heat these units experience from being left in a hot car for long periods of time. This would explain why mine would work in the beginning and then die.

So my thinking was, if the diode “thinks” there is an external antenna attached when it isn’t, what would happen if I “did” connect an external antenna?

Garmin recommends the Garmin GA 25MCX low profile remote GPS antenna for the Nuvi 660 and costs $31.49 (not sure about additional costs for tax and shipping)

So I purchased the NEW antenna from a seller on eBay for $25.90 total and IT WORK FLAWLESSLY.

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I repeated the same process coming home and once again, I connecting the external antenna after the unit reported loosing satellite reception, and it worked perfectly.

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Side Note: This external antenna also worked perfectly on a friend’s Nuvi 350 with the same problem.

I wanted to share this with everyone because I’ve been racking my brain for months over this. I hope this helps.

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