I have a simple fm transmitter I bought from canakit to play mp3's all over the house. When making an antenna it told me it had to be a certain length of wire...they had a formula for it - I can't find it right now though. Why does it have to be that certain size? I keep reading about whip antennas and fancy tv antennas...can I attach anything better to this thing or does it have to be a simple wire? Can I make it as long as I want still adhering to the formula? Thanks a lot