Whelen 2910 PA test, Frisco, TX (Insane echos and DTMF) 

lol

Stereo mode is the best

This only happens when the siren receives activation/deactivation tones during live PA function (basically intercom mode) in this mode whatever it receives through the radio is played through the siren, and the siren continues to play those tones before the controller processes them to cancel live PA.

I tought only phones used those

@@polhpolh64 It's a radio transmission type, yes it is primarily used by phones but it is not limited to that.

Today at 12

It will not be done today because it’s raining

Ok

DTMF is essentially just like dialing a phone, the siren recognizes it

@@tomatosoupwoo any videos that explain the code itself or is it kept a secret to prevent unauthorized acess

@@kettleshot6044 dtmf is your phone dial sir

@@kettleshot6044 there are absolutely videos, especially on the different tones, the history and AT&T's influence on these tones.

@@kettleshot6044these sirens use a 10 digit DTMF code to communicate with one another The first 3 digits are a system ID number (im going to use 864 as an example) the next 4 digits are to represent specific units in the system (# meaning all units) the 8th digit is the ID to the base station being used to send the signal and the last two digits represent the function the siren is going to run In this example the tones used for this type of activation would be (P.A) 864####0D4 (Siren polling response) (Cancel) 864####0DD The codes for an actual wail activation would be 864####0D1

Nah fam

That was the one off of Preston and Warren, we were standing not too far from an Academy and were making pretty crude jokes lmaooo

Re-watch the video for your sarcastic laugh after it cuts off. *high pitched* BWAGHAHAH WAHGAGAAAH

​@@whammyp50 Did that video ever go up? I've been trying to find it for ages

I’ll link you on discord

dis iz onleh a tes