How is a "Growl" test accomplished?

[Robert Gift]

I'd rather do it by hand!

But I'll look into it.

Will have to find/make something if it is to be remote-controlled.

Thanks.

[q2bman]

hey Robert, Is that the one for the trailer park you were talking about?

[Robert Gift]

No.
That is another siren I am seeking for another vulnerable trailer park.

You would have hated my drive today.

In a 28 minute run in rush hour traffic I was able to sound the Unitrol 80K hardly at all.
The silence was beautiful.
One bicyclist was very appreciative when I instantly silenced Wail
as I was turning and about to be aiming right at him. He smiled and gave thumbs up!

On Tuesday's run from Denver to Ft. Collins, I used Hi-Lo on backed-up
I-270 traffic. Much more pleasant than Wail or Yelp.
Also, if you press Manual at the right time in Hi-Lo, you get a third note like the opening motif of Beethoven's 6th Symphony.

[Jim_Ferer]

Robert, you need a control with cycles that can be activated remotely or run through the cycle at one push. You can't know otherwise that you can activate the siren.

Most controls are solid-state now.

There's a remote-control allocation at 72MHz - 76Mhz.

There are probably several sources for grants of assistance for buying your controls.

[Robert Gift]

Yes. Good idea. Thanks.

The grants have been used up on other things.

The remote control is, of course, best.

I would like to use the same signal which triggers Aurora's siren
closest to the trailer park.
The problem is that Aurora may set off ALL their sirens for a tornado
far north or far south which would not threaten most of Aurora or the trailer park.

I recall we can acquire the same receiver used on their system for $1,400.

We only need one signal. What is the best timing of a tornado warning?
10 seconds on, 7 seconds off, or is it the steady on for 5 minutes?

Wail is better because a steady tone parked at it's highest pitch is not as easily noticed as one which changes.