Question about Garmin StreetPilot 2730 GPS Receiver

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Loose XM antenna connection for garmin 2730

The unit loses connection with the GM30 XM radion antenna and it seems to be at the connection with the unit...

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Re: 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.

Posted on Aug 19, 2009

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My device has seemed to have lost its ability to acquire satellites. Any suggestions? It's Garmin GPSmap 60CSx. Thanks.

I would try a reset and firmware update first. To Reset the unit hold the Page and Enter keys down while you power up the unit. hold them down until you get a prompt asking you if you really want to reset.

Garmin has a free software called webupdater. this will put the latest software in your unit. If there is a GPS chipset software available please apply that also. It will be in the list when you run webupdater.

You may want to try an external antenna also to see if an internal connection came loose.

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The gps looses satellite reception. Repositioning

DIY is risky in this situation, besides there is 3 months warranty by Garmin on their interventions I would suggest you get it done by the professionals

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My Garmin StreetPilot 2730 won't hold its settings.

Do a hard reset.

Turn the unit off, then hold down the menu and map buttons, simultaneously, then turn the unit back on and continue to hold down the buttons down for at least five more seconds, then the unit will power up. At that point it's like the unit is being used for the first time and you will have to reset everything. You will lose your XM presets, but the MP3's were still there.

Also after if this does not work, plug in your garmin and mount it, mac or pc whatever, then go in your garmin file erase all maps should be gmapsupp.img or gmapprom.img. Reload your maps from mapinstall.

Jan 14, 2009 | Garmin StreetPilot 2730 GPS Receiver

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Purchase an external magnetic antenna for the 330. You can purchase from Best Buy or on line from Garmin.

Jun 30, 2008 | Garmin StreetPilot C330 GPS Receiver

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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 Devices

1 Answer


The GPS is defective. Your usb/xm port is broken. You need to send it back to garmin.

Apr 11, 2008 | Garmin StreetPilot 2730 GPS Receiver

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