External antena and fibre glass

Cloonsey · Occasional Visitor Joined: Dec 31, 2004 Posts: 8

Does fibre glass affect the gps signal?

My van roof is fibre glass and if possible i want to put the antena on the inside of the roof.

lbendlin · Posted: Thu Jan 06, 2005 5:23 am Post subject:

Fibre glass should have next to no influence on the GPS signal. Putting the antenna on the inside should work just fine.
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Eldar · Posted: Thu Jan 06, 2005 12:14 pm Post subject:

Fiberglass might affect the cental frequency of a patch antenna if it is sufficicently close (up to 2cm) to the antenna.

Podie · Posted: Thu Jan 06, 2005 4:13 pm Post subject:

Absolutely no problems at all... mine lives in a TVR (which are not good for electrical interference generally Rolling Eyes

)... had no problems with the standard unit... so not even going to bother with the external antenna..

DavidW · Posted: Thu Jan 06, 2005 5:06 pm Post subject:

You may find it harder to mount the antenna - magnetic bases don't stick to fibreglass!

Meanwhile, many external antennas will be set up to work ideally over metal (acting as a ground plane) - so it may be slightly off tune if not over metal, and slightly less efficient as a result. You can only try it, though, and I'd be surprised if it was that affected by the fibreglass.

David

Cloonsey · Occasional Visitor Joined: Dec 31, 2004 Posts: 8

Cheers guys,my external antena should arrive tomorrow.
I'll have to experiment abit and report back.

Lotus_Esprit_Turbo · Posted: Fri Jan 07, 2005 8:21 pm Post subject:

Mines fine (fibreglass car as well) :D

I even tried it attached to the underside of my sunroof (that has a carbon fibre panel instead of the glass) and it worked fine through that too.

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