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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5 Suggested Answers

  • 1 Answer

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

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Hds 10 gen 2 having trouble picking up location takes 20 to 30 minute to locate.


Aluminum will block a GPS signal, but the aluminum needs to be above the antenna and within approximately 12 inches or less.
the other major source of interference is the electromagnetic field of other electronics in close proximity to your GPS antenna. Typically within about 24"-30" or less in distance from the antenna. The internal antenna of the HD 10 is top dead center of the unit.
Turn the "WAAS" off on your unit and see if that improves reception.
Hope this info helps.

May 11, 2015 | Lowrance Hds-10 Gen 2 Combo

1 Answer

My Raymarine C 120 GPS intermittently stops working.


I had to replace a GPS antenna unit with cable. Sometimes, during bad weather or strong sun, I lost FIX on satellites. Cleaning the top of antenna did not help. Unit from Ebay was also a junk. Get a new one after testing display on a friend boat.

Jul 28, 2010 | Raymarine C120 GPS Receiver

1 Answer

We lose fix info. on the c120and the Auto pilot has no display. The problem is intermittent


This sounds like a problem with the receiver. If you can not get GPS fix (sometimes) you will have to start looking at the GPS antenna and cable. If the unit is new check out the location of the antenna. As with anything that works with satellites it need a clear view of the sky to fix onto the "birds". A GPS connects to numerous "birds" at a time, so ensure that the antenna has a wide angle view of the sky. If it is old you will have to start looking for connection problems. This is usually the case when the fault is intermittent. Check for possible water damage and loose or less than adequate connections. Also ensure the cable is in a good condition.

Apr 03, 2010 | Raymarine C120 System Pack C120 Raystar...

2 Answers

My remote will not connect


I had the same problem, i decided to drop it into the pc dock and reboot it, and wolla, it found the remote, worth a try.

Aug 11, 2009 | Tomtom GO 930 GPS Receiver

1 Answer

Hi There, Just bought a new Nuvi 255, I was just driving to a destination and out of sudden, my GPS got a message mentioning, loss connection to sattelite. It stayed on for like 30 mins, till I reach my...


Unless you are driving in a dangerously remote area of some desert, or a large city, GPS units rarely lose signal. Chances are you have a defective unit, I'd contact Garmin support: Here.
Hope this has been of some help.

Jul 07, 2009 | Garmin nuvi 255W GPS Receiver

6 Answers

Unable to acquire satellites


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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.

Just to make sure it really was the new external antenna that was working and not the unit coming back to life, I started my 3 hour journey with the external antenna NOT connected. As usual it lost satellite reception in about 15 minutes. I plugged in the GA 25MCX and it immediately connected to the satellites and never lost them.

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.

Conclusion: if your unit is experiencing loosing satellite reception, and is under warrantee, return it ASAP. If it’s out of warrantee, get an external antenna. There are other manufactures of external antennas and all should work as long as it has an MCX connector.

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.

May 04, 2008 | GPS

2 Answers

Garmin 4208


Make sure all three T-connectors are connected and that you connect the YELLOW cable to the last one. This yellow cable will need to be connected to power. Then you will get GPS link up.

Mar 22, 2008 | Garmin GPSMAP 4208 GPS Receiver

2 Answers

/lost satellite reception


There is a problem with your GPS satellite receiver, The best thing to do is to connect an external antenna/satellite receiver which you can buy aftermarket, about $29.00. This is proven to give you back your GPS to life. You'll see your green bars again I have Garmin Nuvi 370 and this fixed the problem.

Jan 09, 2008 | Garmin n vi 360 GPS Receiver

1 Answer

Loose XM antenna connection for garmin 2730


Try cleaning the end of the antenna with alcohol and a qtip. Also the unit itself. Are you able to hook up usb no problem? If so it is the antenna. It is either dirty or broken.

May 24, 2007 | Garmin StreetPilot 2730 GPS Receiver

1 Answer

Not connecting to satellite


open up your unit, careful when opening as the RF cable will be tight in between the boards. make sure there is nothing banging around in the unit.. (shake it and listen).. if yes then investigate and report back. if no, then make sure all the cables you can see are tight. especially concentrate on the RF cable.. long cable.. either black/carbon fiber or grey cable. One more place to check is your antenna, (which you'll have to take off before you open up your unit, so do this first) yea jut make sure the antenna is on the unit tightly. Also try resetting user data. + and repeat button at user menu, then select reset GPS data. -Daniel

Apr 18, 2007 | Magellan RoadMate 700 GPS Receiver

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