Our service used to send an audible alert tone, like QCII over the air. Using Digital this seems impossible the XPR7550 series radios (and perhaps all XPR) filter out all audio wave forms (sine waves) except for DTMF and voice.
I'm trying to understand how this works, why it's necessary in digital and if there is a work around to get an audible tone to broadcast.
I could find anything with a search but I imagine this has been discussed, any further information would be appreciated.
I'm trying to understand how this works, why it's necessary in digital and if there is a work around to get an audible tone to broadcast.
I could find anything with a search but I imagine this has been discussed, any further information would be appreciated.