Originally Posted by hoodie
I am pretty sure they can't do this.
at least on an experimental basis, some mountain/snow avalanche rescue helo's can home in on a cell phone signal.
They could DF on a transmission from 121.5 and 243 or if your ELT is transmitting, (they could) DF to the signal.
pretty sure this is what was meant by that post. So no 'transmitting DF to the signal' without the comma.