>I have found that serial ports are generally less sensitive to rf >than parallel ports, so you may want to try that option if all else >fails. Good luck. You can make the lpt port less sensitive to RF by turning the PTT signal off. PTT ENABLE = FALSE -- George Fremin III Austin, Texas C.K.U. "Where is the line noise?" -Trey N5KO K5TR 512/416-7010 geoiii@bga.com