I know one of the city council members and was gonna see if I could give them an exact answer. Yes, it activated according to the city council. I can see if they have more details about it. Also, yes, I have witnessed a siren activate 6 minutes late after the rest of the county went off, which it is now fixed. There's video proof I can show you if you want to see.kb8vul wrote: ↑Sat Jul 25, 2020 6:54 pmOK, wait a minute.. according to your post the siren didn't activate until 4 minutes AFTER the tones were dropped to activate the siren. That's not even possible. If the controller (assuming its an Federal but even if it's a VA2000 Whelen) is going to start the 3 minute timer as soon as the tones drop and it activates. So even if the relays hung and didn't close, in 3 minutes the timer would have expired and released the signal to close the relays. And calling it a "radio" problem couldn't be further from right. The radio simply receives the signal coming from the transmitting radio. It then demodulates the signal via the FM discriminator, and runs it over to an amplifier that then sends the received audio out to the decoder part of the controller. Now if it had NOT activated at all, then yes maybe it's a radio issue. But this is sounding alot more like the dispatch center didn't send the signal out until 4 minutes AFTER the warning is issued. So something don't add up here. Did the siren activate after the 4 minute delay? That is the key to all this. If it DID, what you are saying don't make sense. If it didn't then it could be any number of things and obviously some part of the siren is broken. A model 3 is a pretty basic siren in its construction. A motor and a chopper/blower for the noise making part. If you apply power, it spins and goes whoo whoo. The FC controller would be connected to a heavy contactor that would control the power. So you could have a bad contactor, a bad siren or just a blown fuse in one of the power legs feeding the siren. SO I guess the next question is are YOU working on it and need help getting it going again? Or are you just curious about what could be the problem?
Well you can stand by what ever you want. And I am not sure what knowledge level you are but I have been working on sirens professionally for over 10 years. And my primary form of work is two way radios, like to ones used on sirens for command and control.nvanw27 wrote: ↑Sun Jul 26, 2020 11:31 pmI refute my earlier claim of the radio freezing and not passing the information to the controller. In this video, ( [url]https://youtu.be/EhLfZfIvbh8[url] ), the uploader states that his radio froze up, causing the data to not be passed to the siren controller. That is what makes the most sense here.
Edit: I'm a moron. Refute was not the right word, I should've said "stand by my claim" or "defend".
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