A fast beacon, Radio Marti, and an EAM all in one waterfall. For your viewing enjoyment.

EDIT: That "fast beacom" may be more than just a beacon. It has some features to it that are more than just the beeps, some tones appear in the spaces between the beeps. I don't see any good explanation on the web yet but I do think it is military.

#hf #shortwave #sigint