“Fight For Your Mic” is 3CR's radiothon theme this year. It encapsulates the station’s ongoing commitment to social justice, equity, sustainability and progressive community involvement - fighting for a better world. In this special radiothon edition of the show, we ask the question – if 3CR is fighting for your mic, who’s making the mic work in the first place? What happens if the mic, or any other bit of equipment at the station needs  fine-tuning, fixing or replacing, so that 3CR can keep the fight going for a better world?

So much goes on in the background, behind the mic used to present the voices that you hear during your favourite program. And we at Communication Mixdown think that the people who do all this are the unsung heroes of 3CR. This week we hear from three of them, talking about their work and some of the changes they've encountered in radio broadcasting technology over the years.