I doubt that it would be useful because the tolerances are extremely high in DTMF so if you are only a few Hz off the tones won't lock. FM might be ok but certainly not SSB. FM itself has its own problems on HF so that might not be useable either.
Kevin Muenzler, WB5RUE Grid-EL09uf Eagle Creek Observatory http://www.eaglecreekobservatory.org I'd be unstoppable if it weren't for law enforcement and physics -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Robert Bruninga Sent: Friday, January 10, 2014 11:10 AM To: [email protected] Cc: [email protected] Subject: [amsat-bb] DTMF on HF? Has anyone had any experience with any success at DTMF working on HF for some rudimentary commands? I know tuning is critical as well as inter-tone noise must be way down. Just thought maybe someone has experimented with it. Bob, WB4aPR _______________________________________________ Sent via [email protected]. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb _______________________________________________ Sent via [email protected]. Opinions expressed are those of the author. Not an AMSAT-NA member? Join now to support the amateur satellite program! Subscription settings: http://amsat.org/mailman/listinfo/amsat-bb
