What a 500kHz WSPR signal looks like

G6AVK has his temporary grabber running on 500kHz this evening. See http://www.qsl.net/g6avk/ . It was interesting to see what my WSPR signal looks like on a grabber at around 80km away. My report was -24dB S/N but, as you can see, it is clearly visible FSK keying around 6Hz.