Hi Folks, Long time listener, first time caller, hi. I seem to recall reading a post a long time back about a simple mod to enable the '390A to hear freq's below 500kc's. Could someone explain the mod, or direct me to the proper resource? Much obliged. 73, Bruce Bacon - KE6GLS Boise County, ID 1955 Contract Collins R390A #4629 (or so the label says)