Originally Posted by slowjett
Just ground it to any ground on the unit near the signal wire. All the grounds should be common.
I'm not sure that the antenna ground is the same as the other grounds.
I remember Alex (IBCrazy) was recommending creating a dipole for a 72mhz RX by sending the RX antenna down one wing, and the a ground down the other wing. I asked him if I could just use a black servo wire for the antenna ground wire, and he said its not the same. I would have to find the antenna ground pin on one of the chips and harvest it from there. I didn't know how to find this, so abandoned the project. I find myself in a nearly identical predicament now.