Question about Garmin nuvi 200W GPS Receiver

3 Answers

Lost satellite reception

Garmin nuvi 360. Recently it aquires the satellites but within a minute or so looses satellite reception. What gives? Problem started after driving 600 mls away.

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  • Anonymous Aug 31, 2008

    I have a Nuvi 360 and it started losing satellite reception about 2 months ago - now it does not find satellite connections and is pretty much useless.

  • Anonymous Sep 11, 2008

    After 2-3 miles losing satellite reception

  • jennpiri Sep 11, 2008

    my gps does not work it tells me to download some kind of upgrade???

  • busdriver_20 Nov 29, 2008

    While driving, lost satellite, won't return. Battery fully charged.

  • Anonymous Apr 23, 2009

    Each time I turn my 200 W on, it says 'acquiring satalites' but never finds any! It did help once I had reset it but it is still slow at finding them.

  • SHARCNET-USA
    SHARCNET-USA May 11, 2010

    As for Nuvi 300/310/350/360 & 370's, Please see this link for more specific information about this problem. I will be more than glad to help you with this problem.

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

    - Jim
    SHARCNET-USA
    http://www.sharcnet-usa.com

  • SHARCNET-USA
    SHARCNET-USA May 11, 2010

    The original question was about a Nuvi 200. The Nuvi 200 does NOT have an external antenna port, so any suggested solution regarding a external antenna port is invalid.



    I will be more than glad to help you with this problem.

    - Jim
    SHARCNET-USA
    http://www.sharcnet-usa.com

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3 Answers

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  • 2,124 Answers

This problem is not caused by poor solder joints. It's caused by a defective part. We sent a "marked" defective unit to the repair shop mentioned above and upon its return, disamantled the GPS receiver assembly and made the following evaluation:

1. The shop did NOT replace the defective component causing the initial problem in the 1st place. The defective part was STILL in the circuit.

2. The shop placed a wire jumper between the internal antenna and the external antenna port. This type of modification places a +2.5VDC bias on the internal antenna and essentially shorts the internal antenna to the external antenna (when connected), giving unpredictable results. It also affects the circuit impedance and signal strength. This is not the correct way to resolve this issue.

3. The defective part needs to be replaced with a higher rated part. This type of repair returns the unit to full functionality and allows the unit to properly switch between the internal and external antenna as it was intended to do by design

- Jim
SHARCNET-USA
Comments: I will aso add, as the part deteriorates, it becomes resistive and can eventually short out and shunt the incoming RF signal to ground......EVEN with the jumper procedure performed by the shop mentioned above.

- Jim
SHARCNET-USA

Posted on Feb 17, 2010

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I had the same problem while taking a trip earlier this year. I was able to resolve it and I do have a theory as to why it happens. Read about it here.

Posted on Sep 07, 2008

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  • Contributor
  • 7 Answers

I own & operate the electronics repair company, Westek Electronics in Nashville, TN. We repair & refurbish GPS units among other things. We have repaired many nuvi 350/360 units with this issue.

This issue is typically due to a hardware malfunction and cannot be remedied by software upgrades, resetting, etc.

Do this test:

  1. Strip a ¼” of a wire twist-tie end (the kind found on bread wrappers) bare exposing the fine wire core.
  2. Power up your nuvi 350/360 and confirm that you are not receiving any signal.
  3. While still powered on, insert the bare-wire end of the twist-tie into the center female external antenna jack located on the side of the antenna. If done correctly the external antenna jack will firmly hold the twist-tie in place. You cannot damage the unit by doing this.
  4. If you now have satellite reception then proceed to step 5. If you still do not have any reception then I have no further advice other than to try all of the update/reset procedures. If all else fails return to Garmin for repair.
  5. Once you have established that you have signal using the twist-tie, remove the twist-tie and confirm signal loss.

Your choices to remedy this issue is as follows:

  1. Purchase & use an external antenna.
  2. Return the GPS to Garmin for repair ($175 if its out-of-warranty). Or,
  3. Send your Garmin Nuvi 350/360 to us for repair. We charge $55 (return shipping included) to repair this malfunction. We can also accommodate this repair transaction via eBay in order to provide you with additional reassurance (an addition $5 is added to cover eBay fees, etc. when using this option). Our eBay ID is westek_electronics, feel free to review our feedback ratings. Our repairs are covered by a 30-day warranty. If for some reason we are unable to successfully complete the repair we will return the unit to you and charge only $10 for return shipping. To initiate your repair contact us at westek12@hotmail.com.

Hope this helps.

Posted on Mar 05, 2009

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Posted on Jan 02, 2017

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I have a Nuvi 200w that I received last December as a gift. This unit takes forever to aquire a satellite. The "DIFFICULY AQUIRING SATELLITES" message comes on 90% of the times I try to use it....


While under warranty.... yes.... Make sure it's been registered on their site before calling them and requesting an RMA number.

Good luck!

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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

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