sat nav user

Hi All
Well I am an avid model aircraft builder and flyer and love to combine both my main interests one is of course the model flying and the other is caravanning.
In enjoying caravanning I tend not to rely on her in doors to navigate I use a sat nav system, and have yet to find the all singing all dancing one, so being a member of this forum i hope to gain advice and try to give advice when and if needed, after all no one can sail through life without a little help now and again.
thanks for looking.