'ZCZC' and 'NNNN' - all caps?
Is this still set up for teletypes?!
Please tell me there's not somewhere still getting these via baudot?!
https://en.wikipedia.org/wiki/NAVTEX
- "NAVTEX messages are transmitted using binary frequency-shift keying (BFSK) at 100 bit/s and a 170 Hz frequency shift"
It's a low-bandwidth way to send weather tweets to seafaring boats.
It's clean, human-readable, it looks like it should not be difficult to parse if the case needed... so why change it?