Inspired by @oe1lfb posting a pic of a new Codan Envoy I was reminded of my previous experiments with CCIR493 HF selcall.
I haven't done anything with it for a few years but I have some old notes on my wiki
I've connected a Jenal sc2 mic to my G90 and its monitoring 14.342MHz with selcall id 3658 if anyone fancies doing some tests. The G90 will send revertives out (@ 20 w) for direct selcall, direct beacon call and "99" beacon call
https://g4slv.info/dokuwiki/doku.php?id=public:radio:topics:ccir493_selcall
