D4C by YU1AAV 10CW
D4C by YU1AAV 15CW
D4C by YU1AAV 20CW
D4C by YU1AAV 40CW
D4C by YU1AAV 80CW
D4C de VU2PTT CQWW 20151129 7MHz
D4C by GW4BLE (SK)
D41CV de MM3AWD CQWW 20181124 7MHz
D41CV de MM3AWD CQWWCW 20181124 14MHz