OSD-GPS (ID) is an on-screen display board that overlays NMEA 0183 GPS latitude, longitude, heading, speed, time, and optional altitude onto an incoming NTSC or optional PAL video source. In addition, a user defined message like an amateur radio callsign can be overlaid on-screen to meet FCC id requirements. The on-board button keypad allows users to program their callsign which is stored in a non-volatile eeprom so even with loss of power the callsign is retained.