How can I get a PA300 to do this?

[BFDFire288]

Hello everyone, I recently came across a video of a local fire company using a PA300 siren with an odd tone, that resembles a powercall warble tone. It seems that the Hi-Lo function of the siren was somehow altered to emit this tone. This fire company also got a Code 3 V-Con to do the same thing. I was wondering if there is a way I can get one of my sirens to sound like this?

PA300 (Around the 1:30 mark)

V-Con

 

[C17LVFD]

Honestly sounds like they've got a second electronic siren with power call tone.

You can make a powecallish tone with a pa 300... put in on yelp and then toggle the manual button is a rhythmic fashion to peak the siren tone to sound like the power call. It works. I've done it. Haven't done an actual modification though.

In the videos both powecall tones sound pretty similar to me saying they've got a second electronic siren.

Just my 0.02.
Seth

 

[munisafety]

place selector between yelp and wail , I've done many times

 

[Wailer]

To my ears the yelp sounds the same in both videos.