Baics of TTD setups (How TTD Works)
I was wondering if could decode all tones on a particular frequency or just the tone frequency entered.
Just the Tone Frequencies entered (assuming i understand your question correctly). Here is a diagram of the setup for a typical TTD deployment:
Dispatch ---> Broadcast radio__| ) ) ) ) ) ) |__Scanner =={audio cable}==> sound card of computer --- TTD.
Two Tone Detect will have a list of tones it is to identify and record:
{Tone 1} A=586.5,1sec B=952.2,3sec | Department 1 | <users to page> {/Tone 1}
{Tone 2} A=782.5,1sec B=689.5,3sec | Department 2 | <users to page> {/Tone 2}
{Tone 3} A=937.5,5sec . . . . . . . . . . .| Department 3 | <users to page> {/Tone 3}
.....
Tones 1 and 2 are standard two tone A/B 1/3 second quick call format (or similar) tones. Each one is tied to a different department
Tone 3 is a Long tone (no B tone, often for 'group' call) tied to yet another different department.
Then TTD just sits there monitoring the audio from the sound card. Then if the audio received matches one of the programed tone sets it will trigger the program to record and then send the recorded message out to the users. If the tones are not programmed into the tone list it ignores them and does not recognize them.
Does that help answer your question?
