>>How many of you, (excluding the big Class A stations) >>that take care of stand alone AM's, have or use a >>modulation monitor? We use one here at KCKN. A Belar. The transmitters with the built in displays are pretty but I don't really trust them to be that accurate. I trust a properly calibrated Belar to be accurate. Don Niccum KCKN donn at dfn.com