Fire Station Alerting Horns, Farmington NH

If anyone else has or knows of a system that is like this (not gamewell diaphones) please let me know, I did a pretty intensive search for other systems like this and I was not able to find any other active systems or who makes them.

This is a video of the fire alarm horns in Farmington NH, these are very old, almost original to the fire department itself, having been moved to this location from the previous station in 1974. In the town, major buildings (and street corner boxes at one time) such as large old factories, apartment buildings, schools, the lumber mill, municipal buildings, and other buildings with a higher fire danger are connected via telegraph wire or radio transmitters to a monitoring computer inside an office of the fire station. When a signal is recieved the computer begins to decode the telegraph signal (or instantly knows the radio box signal) and activates the paging system with a pre-recorded message. Then the computer activates a solenoid broadcasting a coded number signal through the horns across the town. If you count the blasts you get a number: 44, 56, 241, 33 etc. the number corresponds to a Gamewell box number at a specific location, the fire dept. actually passes out reference sheets to members and any townspeople who request it. Surprisingly, as opposed to finding the horns annoying, the people like them, and feel it somewhat keeps them in the loop. I have seen many a refrigerator with the box listings on it. As for the range of the horns, they cover most of the town, I used to live about 6 or 7 miles away from the station on the outskirts of town, and with the right weather conditions I could make out the horns enough to correctly decode the signal. Hope you enjoy the video, and don't be fooled, the horns are really loud from where I'm standing you can see me jump when the first round goes off.

Btw: this was done as a prank / congratulations announcement during a department members' wedding, but it was a good opportunity for me to get video of this. I will be posting a follow up video that shows the alarm computer.