Tom tom poor signal

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Steveo
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Tom tom poor signal

Post by Steveo » Fri Jul 18, 2014 2:15 pm

My Tom Tom struggles to get a satellite lock when I use it in the 6. I believe that this is because of the double glazing, especially on the front screen.

Is there some kind of booster aerial or other solution to this? (Apart from a map book)
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SuprSi
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Re: Tom tom poor signal

Post by SuprSi » Fri Jul 18, 2014 3:44 pm

Double glazing?! that's new to me. I think it's just a normal laminated windscreen as in any car.

Should work fine, my phone and garmin work perfectly. Might be your TomTom playing up.
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Re: Tom tom poor signal

Post by Nobby » Fri Jul 18, 2014 4:06 pm

Front screens are normal thickness, but have a 'sun reflective' coating/shaded area at top.

Side windows are double glazed in the strict sense, but have no air gap between the panes like house double glazing are almost like 2 panes of glass glued together.
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Re: Tom tom poor signal

Post by bilko1 » Fri Jul 18, 2014 4:12 pm

I had the same problem so upgraded to RNS-E with external puck under the bonnet. Cars with twin pane glass and solar sunroof have a different windscreen which blocks/ hinders gps signals.
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Re: Tom tom poor signal

Post by Drummerman » Fri Jul 18, 2014 7:31 pm

When I had my screen replaced, they told me I had the optional screen with a reflective coating (helps keep the inside cooler - which it actually does as I noticed the dash never feels that hot in the sun). This plays havoc with a sat nav or mobile signal!

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Re: Tom tom poor signal

Post by Shoppinit » Fri Jul 18, 2014 8:03 pm

You can get a GPS repeater. I've got one in mine. Works like a charm. All GPS devices in my car work perfectly now.
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Re: Tom tom poor signal

Post by Steveo » Fri Jul 18, 2014 8:09 pm

Drummerman wrote:When I had my screen replaced, they told me I had the optional screen with a reflective coating (helps keep the inside cooler - which it actually does as I noticed the dash never feels that hot in the sun). This plays havoc with a sat nav or mobile signal!
That's exactly the problem I have!

TomTom's website suggests getting a 're-radiating antenna' from a third party supplier. How helpful!

Anyone ever used one of these?
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Re: Tom tom poor signal

Post by JCviggen » Sat Jul 19, 2014 9:34 am

Shoppinit wrote:You can get a GPS repeater. I've got one in mine. Works like a charm. All GPS devices in my car work perfectly now.
Ditto. Couldn't get a signal worth a damn without it.
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Re: Tom tom poor signal

Post by Shoppinit » Sat Jul 19, 2014 9:48 am

Steveo wrote: TomTom's website suggests getting a 're-radiating antenna'
Shoppinit wrote:You can get a GPS repeater.
Daytona RS6 C5 Avant. Viper'd, Billies, Waggers, MTM box brain, C6 stoppers, xcarlink, R8 coolant cap (woohoo)
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."

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Re: Tom tom poor signal

Post by Steveo » Sat Jul 19, 2014 10:04 am

Shoppinit wrote:
Steveo wrote: TomTom's website suggests getting a 're-radiating antenna'
Shoppinit wrote:You can get a GPS repeater.

Is the GPS Repeater the same as the 're-radiating antenna'?

Are you using yours on a TomTom or a different brand?

And finally..... What is the make and model of the one you have or can you provide a link to it?

Thanks
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Shoppinit
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Re: Tom tom poor signal

Post by Shoppinit » Sat Jul 19, 2014 10:15 am

I got mine from Canada because I was there and the product looked good (and it is):

http://www.ebay.co.uk/itm/GPS-Re-Radiat ... 0618801252
/edit 31-12-2015: this no longer links to the product that I bought


Plenty for sale in the UK, though. For example:

http://www.ebay.co.uk/itm/GPS-Re-Radiat ... 0618801252

I put a spare cigar lighter socket for it in my glovebox wired into the 75X terminal so that it powers on with the ignition. I ran the antenna through to the front bumper through the large grommet behind the glove box.

Fire and forget. I never give it a second though. Just works.
Last edited by Shoppinit on Thu Dec 31, 2015 10:22 am, edited 1 time in total.
Daytona RS6 C5 Avant. Viper'd, Billies, Waggers, MTM box brain, C6 stoppers, xcarlink, R8 coolant cap (woohoo)
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."

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Re: Tom tom poor signal

Post by Steveo » Thu Jul 24, 2014 7:40 am

Shoppinit wrote:I got mine from Canada because I was there and the product looked good (and it is):

http://www.ebay.co.uk/itm/GPS-Re-Radiat ... 0618801252

Plenty for sale in the UK, though. For example:

http://www.ebay.co.uk/itm/GPS-Re-Radiat ... 0618801252

I put a spare cigar lighter socket for it in my glovebox wired into the 75X terminal so that it powers on with the ignition. I ran the antenna through to the front bumper through the large grommet behind the glove box.

Fire and forget. I never give it a second though. Just works.
The large grommet behind the glove box which you referred to, is that the one in this photo?
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Re: Tom tom poor signal

Post by Steveo » Fri Jul 25, 2014 11:07 am

Can anyone recommend which is the best grommet to use to pass a wire from inside the car through to the engine bay? The one in the photo above seems to be the easiest to get to, but I'm reluctant to use it as it's not for wiring and I'm concerned that if I pop a wire through it, it may leake!

Thanks
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Shoppinit
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Re: Tom tom poor signal

Post by Shoppinit » Fri Jul 25, 2014 11:37 am

No, the one I used was for a really fat bundle of wires to go through.

Just take the glovebox out, you'll see the one I mean.
Daytona RS6 C5 Avant. Viper'd, Billies, Waggers, MTM box brain, C6 stoppers, xcarlink, R8 coolant cap (woohoo)
///M3 E46 | XC90 (V8, natch) | Passat GTE | RR Classic V8 flapper
"The major difference between a thing that might go wrong and a thing that cannot possibly go wrong is that when a thing that cannot possibly go wrong goes wrong it usually turns out to be impossible to get at and repair."

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Re: Tom tom poor signal

Post by Steveo » Fri Jul 25, 2014 12:23 pm

I've taken the glovebox out and I could only see two grommets, the one in the photo and one that was about 8 inches below it. This one had several cables going through it. I fed a piece of welding wire through it, about 12 inches, but I could not find it when it passed through to the engine side. How high or low down was the one that you used?

Thanks ......... again
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