Fire Tone Decoding Help

[JimD88]

Hi - is there anyone who has Comtekk's Fire Tone Decoder software or a comparable package that could decode a tone for me ? I have been able to decode every other tone with by BCT15X's Tone Search feature, but for whatever reason this one is giving me fits. I have tried running it through an audio analyzer also and no luck.

I hate to spend the $50 just to get this one tone and then never need it again

Attached is the MP3 file zipped - the wav file is too large for the forum to allow - I could email that to someone directly if needed.

I am pretty sure Tone B is 977hz, but Tone A is the one giving me fits

Thanks

Jim

[bravo14]

The tone sounds like they used in the show Emergency. I can try to figure it out.


Give this a try

Tone A 426.6 (EZ) Tone B 977.2 (NZ)

I used a stero cable that has 1 male on each end. Also used a freq counter and audacity

[doctordialtone]

You will need a DTMF decoder, like this:

DTMF Decoder / Encoder

It's not one tone. It is two tones broadcast simultaneously, like a phone dial.

[bravo14]

Originally Posted by doctordialtone

You will need a DTMF decoder, like this:

DTMF Decoder / Encoder

It's not one tone. It is two tones broadcast simultaneously, like a phone dial.

I agree on the two tones broadcast simultaneously. I see the DTMF Decoder is a trail though.

[JimD88]

Hi all - thanks for the quick replies. The application here is I am trying to identify these tone settings to enter into a BCT15X scanner for the tone out feature, as well as program into a Minitor V pager (which is the primary need)

A couple questions based on your responses:

- I am trying the 426.6 / 977.2 pairing. I will let you know if it works. I had previously identified it as 421 / 977 and I believe the Minitor's tolerance is only about +/- 5 hz so maybe this revised value will do it. What do the EZ and NZ designations you listed mean ?

- The 2 tones simultaneuos is a good thought as when I try to analyze Tone A, the needle jumps all over as if it is conflicted. I was able to download the DTMF decoder you listed. I ran it, but how do you translate those values (single digit numbers and letters) into a Hz value needed for the pager settings ? I am a bit unfamiliar with this concept

Jim

[JimD88]

UPDATE - literally 30 seconds after I sent the last post - a page came over and 426.6 / 977.2 worked !!!! Thanks all - I should have asked for help a week ago instead of beating my head against a wall this long, but I learned a lot about sound audio in the process. I think I am good (fingers crossed)

[bravo14]

Originally Posted by JimD88

- I am trying the 426.6 / 977.2 pairing. I will let you know if it works. I had previously identified it as 421 / 977 and I believe the Minitor's tolerance is only about +/- 5 hz so maybe this revised value will do it. What do the EZ and NZ designations you listed mean ?


Jim

I think the EZ & NZ is the code for the each tone. Every tone has a code. I am not sure some radio's software if you have to put the code in or the tone it self.

[JimD88]

Got it. My application only required the tone frequency itself to be entered and your findings on that worked perfectly - so I am all set now - thanks again for taking the time to decode it for me !

Jim