SO i did the conversion and calculated that the ideal antenna length for my fm transmitter is about 80 cm . But my transmitter only runs on 9 volts! not very powerful! with a 20-30 cm antenna have connected now it only goes like 20 meters or so or even less without walls. so will increasing the size actually do anything even if its 9 volts? wont an antenna that long for 9 volt transmitter cause too much loss and do the opposite?