The title has a double meaning. All radio stations have a "callsign". These are call signs for the owners of amateur radio callsigns. They are plaques to hang on the wall. Most amateur operators are rather proud of their calls and like to show them off at their operating positions or at work and elsewhere.
I design these first in software, simulate the carving then export to my shop computer system. These are made from a 5" x 10" x 3/4" red oak plank and carved by my HB2 CNC router machine. Then each one is sanded, detailed and hand finished by me. These three are hand rubbed Tung oil finish.
This is the type of work of which I am interested in doing more. Anyone having a carving project like this they would like to have done, don't hesitate in contacting me for more information.