Miami Co. Tornado Siren Continued

[DatedGore]

Hello there, so today we had the monthly tornado siren test. I did get footage of the tones going out for the siren. There was a few initial ones im guessing to start the sirens and then after a minute or so there was another tone which stopped them I believe. After that there was a third tone which i don't know what was for. The first two tones cut out but im sure somebody could understand what it was. It was on our fire dispatch

 

[DatedGore]

So anybody have any other information? I believe from doing a bit of research its a two tone system.

 

[JStemann]

Sounds like this is just activating the volunteer fire/ems/ema pagers to me.

 

[DatedGore]

No the pagers are different

 

[west-pac]

Sounds like this is just activating the volunteer fire/ems/ema pagers to me.

It could be, but also several counties around here set off their tornado sirens by using a 2-tone tone.

 

[DatedGore]

During the day a few weeks ago I heard some dmtf codes going off, I believe it was possibly a different county siren test. I was guessing we had the dmtf but I wasnt sure. But now I know

 

[west-pac]

Huntington county uses that same frequency, PL tone 141.3, and they have 3 repeaters throughout the county that they activate a store-and-forward, recording/rebroadcast system, individually on those 3 repeaters for paging fire depts, via DTMF.

 

[DatedGore]

That was probably what I heard. And every now and then I do here two two pages possibly from the county too? Because there is no dispatch after the tones go off.

 

[DatedGore]

And they are tones ive never heard before. And thank you for sharing your knowledge @west-pac. I tried to record the dmtf tones the day I heard them but I was unsuccessful. I heard around 5 or 6 each 30 or 1 minute after each other.

 

[west-pac]

Huntington county's repeaters use 4 DTMF tones, similar to dialing 4 digits on a telephone, then the two-tone is sent, then dispatch speaks the message.

Henry county, specifically Knightstown and Middletown, uses 154.430Mhz also, and, I believe, they use DTMF tones as well.

 

[DatedGore]

Very interesting. I will try and listen to it again and successfully record it. And hopefully I figure more out about the pager tones I hear.