Well back into last century when I was 18, I got to attend a radio announcing school in NYC. As with every other student there, the main chore of the instructors was to rid the lot of the sorry Noo Yawk accents, these Original Sins we never knew we had. I mean, back then, who ever heard of a NYC radio announcer who had a Noo Yawk accent, anyway? It was forbidden. The school said you were supposed to sound as homogenized as if you were from nowhere in particular.*
Anyway, the other main part of the academic rudiments was becoming used to giving cue signals to the engineer / instructor on the other side of the glass. We were not allowed to operate a control board. I'm certain that many kids who washed out never even got to SEE that control board. Only in the final weeks of the course were those who stayed allowed to operate it. Probationally, of course.
My routine was simple. I played exclusively Beautiful Music, which at the time I enjoyed (and still do). The other students preferred their Three Dog Night and Crystals and Rascals, so their 'Gimme my mic', 'Raise the music', 'Cut my Mike', 'Fade the music under me' hand gestures were more complicated.
So I cannot appreciate or even approach comprehending how signals went back and forth so seamlessly between DJ and engineer at some high-voltage fun house Top 40 station like WABC or WMCA.
We got to see Dan Ingram do his Ingram Thingram in that WABC fishbowl studio once. 'So THIS is what happens as we hear it coming out of the transistor!'
To me, a bit more impressive was watching Gene Klavan's ridiculous studio anarchy at WNEW -- a middle-of-the-road station! Everything I saw him say or do was impromptu except for the live commercial reads (all of which he delightfully destroyed, of course). Between his show's ad-libs and character voices and SFX and reverb and that ridiculously outhouse-slamming 'studio door', one would think his engineers for four hours would be popping pills and looking for the nearest and highest ledge.
Nope.
What fascinating, fabulous, timing went on back in those days vis-a-vis jock and engineer. Every DAY! Every quarter hour! Truly a lost art of the finest kind.
* My accent, along with my acne, has cleared. Recent evaluations from two radio types are suitably confused. I accept as the more accurate positioning 'Somewhere between Springfield Massachusetts and Utica NY -- or maybe Binghampton NY.'