Sarnia, ON ACA Alertronic AL-6000s sounding
Posted: Mon Aug 08, 2022 10:48 pm
This was taken from a Sunoco instructional training video from 1996, showing Sarnia's former system of dual tone Alertronics performing a "long pulse" signal similar to what the ATIs do nowadays.
https://www.youtube.com/watch?v=2V2afg8DEao
https://www.youtube.com/watch?v=2V2afg8DEao