Quote: Originally Posted by
NiSlo 
Now that I know the antanna in the subie is powered, I might have another look. The amplifier might be changing the resistance of the antenna which the silabs doesn't like. I beleive the silabs is epexcting an antenna with 50 or 75ohm resistance. I cant remember which one at the moment.
Did you try the capacitor? I'm not sure what happens without it, i really need to look into how powered antenna's actually work, i dont have any experience with them. google here i come.