[RTTY] Intrigued

[Graham Ridgeway <m5aav@btinternet.com>]

Greetings All,

While monitoring 20m late this afternoon using MixW - there appeared
on the waterfall a callsign........Yes that's correct ON THE WATERFALL
- spread out over about 1khz, almost like a picture.

At first I thought I was hallucinating, then a few minutes later it
rolled across [or rather down] again.this time complete with the MixW
'Butterfly' and I grabbed a screen print - which I have out at... 
http://s40.photobucket.com/albums/e208/strathnaver/?action=view&current=iz0ask.jpg

I was just wondering 'how did they do that?' as it clearly requires
multiple synchronised audio tones.


73 Graham M5AAV
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