No it can't. 7500 has to be dialed on the IFF transponder and the "squawk" button has to be pressed.
Thanks for the explanation.
Is there a 7499 or a 7501 that he could've meant to dial instead? I'd think that number would be pretty isolated so that nothing was hit by accident.
Do we need to broadcast this? Why are the tv stations reporting these types of need to know details? Sheesh.
You mean when turned on and then it automatically replies to a radar interrogation.
Well, the ident button has to be pressed. When your transponder is on the "On" position, it will automatically squawk. But I know what you mean. :-)