[aprssig] 60 Grid Squares for APRStt satellite?

Jason KG4WSV kg4wsv at gmail.com
Fri Feb 13 19:27:10 CST 2015


There are 16 DTMF tones. 2 tones can represent any 8 bit ascii character. 4 tones can represent any 2 character grid prefix with no ambiguity. 

-Jason



More information about the aprssig mailing list