Ok, I know this may sound a little strange ¡V but I HAVE TO ASK ƒº

I¡¦m buying a new alarm this week (probably will end up going with Clifford with the CF LCD Pager) and I have a question regarding the Siren.

I know that different sirens emit different tone chirps when arming and disarming the alarm (ie: a 120db is much different than a 140db)

My question is that if anyone has ever heard a very high-end exotic (Ferrari, Porsche, etc..) arm their car alarm. . . it sounds nothing like a ¡§chirp chirp¡¨ it sounds more like. . . oh. . .how should I say. . . . I ¡§reverse high pitched whistle whistle¡¨. Yeah, I know ¡V it¡¦s a goofy questions probably, but I am trying to find the type of siren that will emit off that sound.

Hopefully I someone swings by this post and knows exactly what I¡¦m talking about and can help me out

I¡¦m crossing my fingers!


-Chris

 

it looks like you crossed your fingers when you typed this, because your "I'm"s are coming out weird...

Maybe you can ask at the exotic car dealership?

 

I doubt 120dB is differnet than 140dB from the same siren. You are a bit confused--140 dB is louder, not any differnet than a chirp from the same same 120 dB siren. A different sounding chirp is a function of frequency, not a function of the siren's output level. A siren can emit different tones, but only if its programmed to do that. The simpleist 12v siren will emit a constant tone at a certain frequency, or normally, the siren is programmed to warble (woo, woo, woo) if it receives a constant alarm signal for more than the time of a quick chirp.

Good luck in your search, but this may help you understand exactly what is going on, and may clarify your misunderstanding.

 

The dBs had something to do with the chirps in my opinion becuase a friend of mine installs alarms and we experimented to see what sirens have different sounding chirps for the arm and disarm. . . and our findings were that when you change the dBs in sirens, the chips are different pitch. . .

For Example: The 140dB Siren is obviously louder, and therefore the chip for the arm and disarm was actually a higher octave than that of a 120dB Siren. We used a few DEI's for this experiment.

We cannot seem to find the type of siren that has that sound that is like a "reverse whistle" that you hear on most porsches and ferrari's

lol!! Yeah, I did have my fingers crossed!!! Ss!orry Aa!bout Th!at

:-)