It's not often I get to have a "planned outage" on one of the full powers, but this morning is one.
In an hour I'm shutting off a 100,000 watt classic rock FM (the one my employer just bought -- I'm now chief engineer for THREE full power stations). My Mission? To pull the multiplexer board out of the exciter to replace 8 dried up electrolytic caps, and re-install. Not to serious, but a pain in the butt. Of course getting to the transmitter requires driving through a muddy farm field, LOL. Because FM transmitters are NEVER easy to get to!
Why? Because one of the caps is known to dry out and allow the power supply to oscillate causing a very high pitch whine, or whistle in the audio. Gates has a service bulletin for this, which the previous owners decided to never both with, so it's been driving people nuts for a year and a half. We received calls and emails -- would the new owners PLEASE fix the whistle! So that's my mission this morning.
Trick is -- I, myself, can't even hear it! My old man hearing that has been abused with loud rock and roll in the headphones for 45+ years, andplayins in bands for a combined 20+ has left me with little hi frequency hearing -- so I never have heard it. But my adult kids can, and the rest of the staff can, and most important the owner/boss can!
I'm off on a mission!