Atop South Mountain in Phoenix, Signals worked on completing the install of a new Nautel NV40 FM transmitter for CBS Radio, at KZON-Fm 101.5. It is an HD facility. This upgrade replaced an aging Continental 816R4.
Shown are some of the steps involved, to include the 400-Amp disconnect with 4/0 welding cable (to ease bending), and conduit work into the transmitter:
A shot of the link between the site UPS units and the transmitter input for the controller and exciter power:
Also shown is a rear penetration into a floor duct for interface cabling:
A closeup of the transmitter main ground, with a hand nut, so checking it periodically can be accomplished without needing a wrench. (This is meant to be both fun and functional):
The crew from CBS is Chris, Eric Schecter (DE for CBS Phoenix), and Paul. All are exceptional broadcast engineers, and a pleasure to work with:
I’ll be continuing this post further down the road, as we will be upgrading all the RF switching at this site.