On Apr 24, 4:31*pm, Tony V wrote:
The advantage of AM is that when two people talk at once you hear them
both. With FM, you get the strongest signal or, when both signals are
nearly equal in strength, you hear neither.

Plus, for weak signals, AM offers better signal to noise ratio. In
less technical terms, if pilot A has to really struggle to hear and
understand pilot B using AM, then pilot A would not hear anything if
they were using FM.

Bart