http://en.wikipedia.org/wiki/European_Geostationary_Navigation_Overlay_Service

 

Can it be usefull for our Avic F series ?

It needs to be supported by the chipset, given our avics are made by centrality which is currently owned by Sirf, I'm guessing we may be running a Sirfstar III chipset.

Previous attempts to use WAAS (the US equivalent to EGNOS) by users running the SirfStar III chipset on some mio devices, has proven little to no difference.

 

Edit: Further research shows it can either be a Sirfstar III LP chip (from the F500BT service manual) or a 40 channel centrality gps device integrated with the cpu platform named Sirf Titan GPS V5, so I can't know of its capabilities. I tried to access the gps chip directly using a Sirf utility but its not responding to commands.

 

According to the specs, both can be WAAS/EGNOS enabled.