Secrets of the CN Tower: A Behind-the-Scenes Look at the Broadcast Facility

2025-04-17

This post offers a rare glimpse behind the scenes of Toronto's CN Tower, focusing on its broadcast facilities. The author, a former radio station engineer, shares photos from their time working there, showcasing the security office, diesel generator room, Sinclair cavity tuners combining numerous radio signals, vintage and modern transmitters of CKFM and CHUM radio stations, and the massive Marconi combiner. The article also details unique architectural features, such as the now-removed exterior staircase featured in the movie 'Canadian Bacon'. It's a fascinating look at the technology and history behind the CN Tower's broadcast system.