I'm currently picking up signal from a beacon using RTL-SDR and decoding the Morse code on a computer using gMFSK program.
The beacon is sending message which decodes as "T DE YU1VHF LOC KN04OO".
I still haven't started learning how to decode the Morse code by "hand".
From what I understand, DE is from "this is", YU1VHF is the beacon's callsign and LOC KN04OO looks like Maidenhead system location. The only part which I don't get at the moment is "T".
Any ideas what that would be?