PropNET transmissions appear strange. What does it all mean?
A PropNET transmission is a PSK31-encoded character string, and includes two components: the preamble and the payload. For example: ~~~~~~~~~~~~~~~~~~~~~~~~~~~ FOR INFO: http://www.PropNET.org < Preamble ab4yz>hy:[fm19oo]PHG211066/^D644 < Payload ~~~~~~~~~~~~~~~~~~~~~~~~~~~ The preamble exists to give decoding software time to scan and lock on to the PSK31 stream. The payload includes much of the same information that voice or CW operators exchange in a typical contact, but in a shortened form to minimize on-air frequency use.
