[justlurking]

To me it sounded more like a helicopter than a woodpecker.

I think that's because it was mixed with the WWV signal.

I heard it many times during the 80's, in an otherwise clear band. It was a much sharper impulse noise.

[Zionist Conspirator]

To me it sounded more like a helicopter than a woodpecker.

I think that's because it was mixed with the WWV signal.

I wasn't referring to the sample at Wikipedia but to the sound itself. Even when I used to pick it up I thought it sounded like a helicopter.

And that was WWVH. The voice was female.