Tuesday, March 13, 2007

Cuban PSK Continues

Today, two schedules.

1600 UTC 17478 kHz, modified V2a format. Repeats group 11111 at message start, 22222 at end. Three messages.

1700 UTC 17436 kHz, modified M8a format with the letters!!!! These are essentally meaningless in a Varicode direct printing mode, where they save a few bits per character, as opposed to cut-number Morse, where they save a huge amount of time. Presumably, Cuban spies and/or their software are used to them.

Both times in PSK31 mode, and audible worldwide. The ENIGMA 2000 designator is SK01. Apparently the PSK is here to stay.