On Mon, 15 Mar 2004 19:52:27 -0500, "S R" wrote:

Some of my radios have the AIR band. I had never picked up an aircraft or
tower. How does one monitor the AIR band?

With a non-scanning receiver, your best bet is to find out what the tower
frequency is in your area.

Sometimes I'll heard strange signals that may sound like a fax. But I am
not sure what that is.

If they're quick bursts, it's a telemetry system called ACARS. 131.55 is a
common frequency for it.