GPS Antenna Orientation

horizontal is preferred. a coiled cable should be a problem. I had 5M of coiled cable in my cluster area....and it worked without a problem.

laxman1100 said:

I have my GPS antenna mounted behind my cluster, but didn't have room to mount it horizontally under the dash. Instead, it's mounted vertiaclly. Will that cause an issue?

Also, the excess cable is wraped and tied close to the antenna. I was reading that having the cable coiled could cause a loop, is that true and how much inaccuracy does that cause?

I've gotten as many as 7 satellites and on occasion, get zero.

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Mounting it vertically is not a good idea, the signal from the satellites is VERY weak and you should give the antenna the best chance to receive the signal. The antenna is most sensitive on the face opposite the mounting face.

The vertical mounting will cause the RNS-E to take longer to acquire satellites first thing every morning and will make it more likely to drop the signal when you drive through trees or when the satellites are very low in the sky (GPS satellites are in a low earth orbit and are often very low in the sky).

As Teddy says the coiled cable should not be a problem - all GPS antennas come fitted with good quality coaxial cable and coiling them has negligible effect on the received signal.