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DMR Digital/MotoTRBO & DTMF function (w/ encryption)

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cmpsa

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Aug 21, 2011
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Analog users have used DTMF to control certain items, just sprinklers at a golf course and such, or for a call box at a college campus, etc. Does DTMF work in DMR digital mode as well? it's RE: a call box. We want to switch a call box comms from analog to DMR digital, and will the DTMF sequence still function/work. Second, we would be using MotoTRBO enhanced encryption too (so that might affect the signal quality some). portable radios are XPR3500e & XPR7500e with DTMF keypads

thoughts?
 
K2NEC

K2NEC

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Obviously the 3500 radios won't work since they don't have the DTMF keypad but DTMF tones do still get transmitted over the air on digital. As long as the radios are programmed to have a hot keypad, it should work no problem. And encryption shouldn't have any impact on performance.
If anyone else has any experience with these call boxes feel free to chime in but those are my thoughts.
 
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