Russian F03a FSK number station at 6304 kHz: https://youtu.be/nLB6C0xLQeg Decoded using Rivet 90 in FSK (Raw) mode with Baudot and FSK options set at 100 buad rate and with a shift of 200 Hz. Regards to all, Curt Rowlett | W9SPY Seattle, Washington USA http://labyrinth13.com