Older Siratrol radio question.

[Tempest116]

Yeah I hope you won't get into trouble in using the antenna to transmit the activation signal from your house. Because you might interfere with other radio signals going through your area. Just saying.

[CGD1003]

I don't have a siren yet. I'm just trying to demonstrate how a wireless transmit works. All the encoder would be doing is just activating and cycling the timer. It wouldn't go anywhere else. My setup almost looks like a fire stations way to activate a siren an example would be river view Michigan's thunderbolt the only thing different is that I want a way to have both the timer and encoder activate either the radio that starts the timer or just acivate the timer I'm just trying to mimick a fire station that has control of the siren as well as the emergency management angency too where as the fire station could activate the siren via the timer or emergency management could activate it by the radio which starts the timer so in otherwords either the emergency management agency can acivate it via radio or the fire station can acivate it by the timer an example would be during test day the emergency management agency would transmit the dtmf tones for the alert signal via the encoder but maybe another day the fire station activates the hi lo signal via the timer for a fire call. All i have is just a siratrol that would control a thunderbolt in a town. A few pictures are below of what I have. All I'm trying to do is show only the controls and consoles work that would activate a siren but with no siren that is connected to the siratrol.
The frequency I have is 154.370 and the tones I have are common (which I have no idea why you'd have that) it's tone is 1084.0
The attack tone is 781.71
And the alert tone is 582.1
And the cancel is 716.1
Those are the tones that the blue radio control reciever has. That is on the silver sticker on the blue box
So with all of this info what type of Zetron encoder would I use? How are these tones above created through the encoder? And what type of radio would hook to the encoder? I want one that doesn't need programmed from a laptop. Preferably a moble radio with a power pack. Now also does both the frequency and encoder need to be set to 154.370? And would both the encoder and moble radio be set on channel 1? What all needs a frequency to match just the radio and the blue radio reciever? The model of the radio control reciever that's blue is an ARCH.
Any and all help would be much appreciated.
Thank you.

[Stormsetter4]

Using that Siratrol radio is not going to work unless you have the radio re-crystalled to a usable frequency. 154.370 is a government frequency that is illegal to transmit on unless you have explicit permission. There is a possibility that your Siratrol box came from a warning system that still currently uses those tones & frequency. If you are close enough to those sirens you could inadvertently activate them as well, which would cause lots of problems. Therefore I HIGHLY recommend that you do not use the Siratrol. As for the question about the common tone, it is part what is called two-tone. The common tone is usually transmitted first. The second tone transmitted immediately afterwards usually determines what function is activated on the Siratrol, I.E. (Attack, in your case 781.71 hz) For the attack tone to be activated, the two tone sequence would be 1084/781.71 hz. To activate other functions, simply replace the last tone with the function code:

Alert-1084/582.1hz.

Attack-1084/781.71hz.

Cancel-1084/716.1hz.

But as I stated in the beginning, you cannot do this since the Siratrol is crystalled to a frequency you cannot transmit on. Hope this helps.

[gman 1]

I see that someone mentioned getting a Baofeng radio. I have one of these, but the question is how would you transmit tones on one? Do you tune to that specific frequency and just press the PTT? Or is the radio supposed to be hooked up to an encoder? I guess my question is how do you generate the tones to activate a radio?

[Westgate Thunderbolt]

On a "normal" set up instead of using a hand microphone the microphone/PTT cable from the radio is wired to the two tone encoder. When the activation button is pressed on the encoder set automatically closes the PTT or transmit circuit in the radio an feeds the tone audio through what would normally be the microphone. The two tones are automatically transmitted with a specific duration for each tone. Once the tones have been transmitted the encoder automatically opens the transmit circuit and stops the transmission.

[gman 1]

So the radio is converting the tones to radio waves?

[kb4mdz]

cgd -

Have you gotten any farther on this project?

Don't know where you are, or if you're even in the U.S.. In my various travels, 154.3700 MHz is often a 'Public Safety' frequency; think Fire Depts & Police, etc. No, you really don't want to be found playing around with your project on that frequency, or any other.