Interesting intermittent RTTY and wideband signals today on 22.7kHz - very strong here. Interesting to see stepped ramped down on Mark signal and slow ramp up to MFSK Signals seen 4 times between 1830Z and 2230Z http://kl7l.com/tscshort.mp3 still visible on http://kl7l.com/fast00000.jpg Laurence