I'm studying FM radio transmissions at the moment. I'm using an NTX2B transmitter to experiment naturally assumed I'd use 0V for False/No signal and 3V for True.
However, a lot of articles that I came across suggested using a DC bias, so that for a 3V supply, you get 0V for False, 3V for True, and ~1.5V for no signal.
Is there a particular advantage to using a DC bias like this?