Yeah, there were a number of DJ schools way back when. For one thing, you were required to have a license to be on the air. A third class license was the equivalent of a learner’s permit - you studied a booklet and passed a multiple choice test. If you had a third, you couldn’t work at a station larger than 10,000 watts (IIRC, it’s been a loooong time) or at a station with a directional array while it was in directional mode.
For those, you required a first class license, with a test that actually required you to know some electronic theory and do some calculations. Cram schools would jam enough info into you long enough to pass the test, and the job wanted listings were filled with jocks who would add “no maintenance” meaning they had the license but not the knowledge and you wouldn’t want them doing any work on your transmitter or other equipment. They were just there to be on the air.
(By the way, the second class license didn’t involve AM or FM broadcasting. It may have had something to do with ham radio or ship-to-shore, or other sorts of operation)
Oh, and if you left one station for another, you’d have to get you license signed on the back by a representative of the station, detailing your period of employment, and whether or not it was satisfactory.
Somewhere along the line, all those requirements were dropped, and DJs were allowed on the air without any licens requirements.
In the grand tradition of older people bemoaning how the younger folks have let down the standards and have it soft nowadays, I will note that in the 60s, we slip-started vinyl on turntables, backtimed to hit a network feed exactly on the second, and would feel chagrined if we stepped on a vocal doing an intro. We would always back-announce so listeners would know the artist and song, in case they might like to go to the record shop and buy one for themselves. News came from the wire service with five-minute summaries available every hour, and we would “rip and read,” tearing the continuous roll paper from the teletype into story-sized sheets for the hourly newscast.
Today, most stations are voice tracked from some central city, with a professional talent playing the same songs and making the same comments (plus local drop-ins) in 200 cities at once. It certainly ain’t the same. Locally owned stations with a commitment to local service are becoming a thing of the past. But that’s for another rant. Thanks for letting an old jock sound off.