The receiver receives information at 434 MHz and outputs it as true data ("The data is squared version of the Audio signal on pin 6 and is true data, i.e. as fed to the transmitter"). So do I need an RTTY library for the Arduino (WDHAB: RTTY Library for the Arduino)? Also, the receiver outputs 500mV on the Audio signal pin, which I am assuming is the same voltage for the true data pin. If this is so, is there some way to tell what amount of coax wire I should use as to not diminish the signal too much? I have a 6-foot 50 ohm BNC connector, but I was wondering if this is too long?