Hi Steve, That's a sufficiently sophisticated radio (triple-conversion, as I recall), that you probably need to round up a scope and/or signal generator, and "go for the throat." How well does it hear the crystal calibrator? Al -- Al Klase - N3FRQ skywaves at webex.net Flemington, NJ 08822 Web Page: http://www.webex.net/~skywaves/home.htm