Slow tune through 40 meters from 7000 to 7572.3kHz LSB 3khz filter.wav - mp3 version Slow tune through 40 meters from 7000 to 7572.3kHz LSB 3khz filter.wav - ogg version Slow tune through 40 meters from 7000 to 7572.3kHz LSB 3khz filter.wav - waveform Slow tune through 40 meters from 7000 to 7572.3kHz LSB 3khz filter.wav - spectrogram 677158.0