I lost the external rubber antenna for sony VGNSZ491N. I can't find a replacement part number.

lost my post. 1 more time. im logged in to alldata.com so can you....!!
there were 6 systems. (orig)
how many speakers.? 4 or 6, with CD and with out, and with external amp and with out,, all have different colors, for antenna motor.
on one setup is wire color P-L (purple,+ ?) (no amp)
pin 9 on radio, marked amp in schematic. and is 8 speakers.

the amp external , used the red wire pin1, not 13 red beep
the red power this amp and antenna motor,

log in and look?

well thats a loaded question the best amateur radio antenna for an HT.. it would be something you would put on the roof of your house, like a cushcraft 13B2 or something, thats what I have if you are lookin for gain. They are around $200 I think maybe a little more. but portable I would use the rubber duck antenna that came with it, it is resonant but no gain, but still works great, contact your local ICOM dealer. DIY external is another story and is way beyond the scope of FixYa as there are hundreds of books on antenna theory.

Hope that helps

I have a unit like that. The antenna appears to be dead. It just searches forever and never finds anything. I use an external antenna that I got from eBay (brand is Gilsson) and it works fine. You just plug it in the external jack (after removing the little rubber plug) and it works even better than the built-in antenna.

Ref ICN330. The external antenna connection is on the top side of the flip up Antenna on the unit itself. There is a small rubber plug covering this, adjacent to the Navman logo.. Ricmac

The antenna jack is no longer available, these can be serviced but the unit needs to be sent out. I do this service, contact me .... poikaa(at)yahoo(dot)com

Please read the solution that resolved this problem for someone else. Most likely, you have already tried this.

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

The Wilson adapter damaged your internal antenna. I talked to Wilson today to get a part number to buy the adapter and the told me they did not recommend using it as it has damaged a number of phones. They also said that LG might have corrected the problem in the newest production models.

take the phone to a mobile service shop and have them replaced the antenna that is located on the phone's main-board.

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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.

I had the same problem with my phone- i got a cheap generic battery to replace the old one (which wasn't holding a charge for a full day, at that) and then i lost all signal, basically. I tried what scm_pa said he did - charged my old battery up, with the phone off, till the charge was complete- turned the phone on, and voila, reception!