Hi
Thanks for the steer. But it confirmed what I had drenged out of the back of my memory ( antenna theory never was my favourite subject and too be honest Maxwell's equations did my head in) but I did remember that flat Antennas were highly directional. So yes you get the gain but at a cost. That being said I am very curious what they have in that weatronics box.

But it doesnt answer my question. Why hasnt anyone else adopted a flat antenna?

M