hrspotter
Jet noise lover
Does anyone know the significance of the DTMF tones following some messages on HGFCS? I got a recording of them after what sounded like a routine EAM/force direction message. Two tones, separated by a few seconds, after “This is callsign, OUT.” I ran it through a DTMF decoder and got # and 9. Do these tones serve any particular purpose for the net?