I'm not sure how good is the satellite fix with the SkyDemon Mobile (or Third Party devices) when inside the cockpit. 

The aircraft I fly is fitted with an external GPS aerial with a BNC connector in the instrument panel.

Does anyone know how to connect the SkyDemon Mobile (or Third Party device) to a BNC connector in order to get a better signal from the external aerial?

I have seen battery powered re-radiating aerials but I prefer a wired connection to the GPS device via the BNC if this can be done.

Thanks for any tips.

Regards,
Mark

First you need a device that will connect to an external antenna. For example Navigon 8410 has such a connection but most WinCE (esp if cheapos from China) do not have a connection. Once you have that BNC shd be feasible. There are bluetooth GPS antennae but again u need a BT driver in WinCE  .. don't know if thats possible. But if you use a full windows netbook with BT then wd work.

HOWEVER  .. my experience (navigon 8410, Aware 4.3", cheapo 7" chinese & Navsgo 7100) is that they all work fine with their internal GPS antenna. Suggest u try it first before going to pain of external antenna. Also untick "precise fix" box.

Cheers

D

Which "cheapo Chinese device" are you using?