Lost satellite connection

Reset the nuvi 660:

1 Disconnect from external power.

2 Flip antenna up.

3 Locate and press small button labeled "RESET" in the antenna recess on rear of nuvi 660.

4 Connect to external power source.

The nuvi will reset, power up and operate normally. If this was helpful, please rate it 4 thumbs up - thanks & good luck!

Common problem. Please see this link:


http://www.sharc.net/gps_antenna_repair.htm



- Jim

Please see this link:

http://www.sharc.net/gps_antenna_repair.htm


- Jim

if it is in your car, i am thinking you may have one of them funny windscreens and may need an outside aerial?

RESET OR TURN THE DEVICE OFF AND ON AGIN IT MAY WORK. BE SURE U R IN AN OPEN AREA. CLEAR SKY R BEST. STANDING NEAR TO BIG BUILDING OR NERA POWER TOWERS MAY CAUSE TO LOOSE THE CONNECTION.

u can get it at radioshack websites
or u can try this link above
all the gps information for 660 number model
http://gpsinformation.info/nuvi/660/660.html

Garmin support center----tomtom support center
http://www.gpscentral.ca/contactus.htm

Please read this solution, which might help you. On the 660, you press and hold the upper-left hand corner of the screen while turning on.

http://www.fixya.com/support/t1155473-garmin_nuvi_660_not_locate_sattelites

- Jim

Please read the solution that resolved this problem for someone else. Most likely, you have already tried this. However, the antenna of your Nuvi 660 is the same as the 3xx Nuvi series. I know this because I have worked on them.

http://www.fixya.com/support/t1115882-garmin_nuvi_360


If the above procedure does not work for you, the entire antenna assembly will need to be replaced.
The other option is to purchase an external antenna for your Nuvi and plug it into the external antenna port (gold connector) on the Nuvi antenna assembly.

Best wishes,
- Jim

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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.

No. 98% of the time it took 45-56 seonds for your NUVI 660. Thats the compagny set up time acquisition and it did very well.

Be sur you had your flip antenna parallel to earth surface.
660 has THE BEST SIRF Chipset for acquiring satellite.

I had 2 NUVI 660 since 2 years. It work much better than those new 7xx series who it really took 2-3 minutes to acquire satellite.

Be sure you update your version to the last one.

----> https://buy.garmin.com/shop/store/downloadsUpdates.jsp?product=010-00540-00&cID=134&pID=400


Best regards