That... just isn't true. It has a P-15 intake, it's single tone, it's MUCH taller than an Allertor, it was installed after Allertors went out, and the sound you hear is the motor starter...matthewwatson wrote: ↑Thu Dec 02, 2021 12:05 amit's coded it has 2 control panels and sounds coded when it starts i can hear a damper at https://youtu.be/hmPXtkWJm-E?t=10 and when the siren winds up in the attack signal it gets quieter for a bit https://youtu.be/hmPXtkWJm-E?t=71 then goes back to normal so im guessing it has a taller rotator because it needs more collector rings for running a damper the main motor and a second motor for the rotator.
i don't see a damper on the intake so it might have bean a coded aca allertor!
i forgot who but i heard it from but i heard aca made a coded allertor that was extremely short lived because of reliability issues due to having to many motors and parts. the coded allertor had a coding ring (basically a second partially rotating stator over the normal stator like the Yamaha music siren or the cheep hand crank sirens) on the stator instead. so im thinking this siren is most likely a coded aca allertor with a p-15 shroud with its motor struggling do to the snow and cold.
Don't just make things up and have no proof behind it. The controls are batteries, the starter, and the radio/control timer...