And the intended purpose is emergency use. It doesn't matter if the audio isn't spectacular, all that matters is that a human voice be understood. And note th

And the intended purpose is emergency use. It doesn't matter if the audio isn't spectacular, all that matters is that a human voice be understood. And note that AM is much more forgiving of terrain than FM. You can still be shadowed but the lower the frequency the less likely you are to be shadowed from the transmitter.