Over — I have finished talking and I am listening for your reply. Short for "Over to you."
Out — I have finished talking to you and do not expect a reply. Correct Gold stars!
Over and Out - You can't be over and out at the same time. If you do say this someone will probably laugh / start foaming at the mouth and shouting at the radio.
Roger- I understand what you just said. ...He also lives next door to Ian.
Bye Bye - Heard only once in my coastguard career..."Thank you Rescue 106 for your assistance today, Bye Bye......um out"...followed by a load of
good natured abuse from us and then the ops room and helo pilot bursting into laughter.