Has anyone ever listened to a air frequency using DMR? Just saw a post about DMR and air band. Didn’t know that. If there is some using DMR, May upgrade my 436 software. Thanks.
I've never heard of DMR in the airband. Given the pushback against ADSB from the industry, in skeptical a mandate for DMR radios in airplanes would gain traction. Especially given the cost.
We're using CPDLC mostly for clearance delivery at this point. AFAIK, the ground, tower, and TRACON will continue using voice for the time being.
Even if CPDLC increases in use, the over-water aircraft still have to make HF contact with the MWARA control station and carry out a Selcal check when changing sectors.
I work at a regional airline. Believe me, it will be many years before we update for CPDLC, they're still dragging their feet on ADS-B right now.
Edit: I'll believe in CPDLC when I see it, for now I don't think regional airlines have much incentive to go to CPDLC. Though you never know what's in the works.
"When your only tool is a hammer, every problem looks like a nail."
CPDLC is just the latest "one-size-fits-all" solution to an overloaded airspace system and radio spectrum. Like cellular phones for ground based communications. Nothing provides better situational awareness while doing more than one thing at a time than broadcast voice communications. If ATC threw all of their eggs into the CPDLC basket and something critical failed, the result would be chaos (and probably a lot of deaths).