Good skill to have - Morse Code. I stayed a tech for many years, not able to crack the 13 WPM. (Though life got in the way of the hobby.)
Advanced when they dropped the code requirements.
Crazy enough, I got up to about 35 GPM’s... being a ditty chaser for 6+ hrs a day helped :-)
But, during “C” school, I was all ELINT. Ended up doing a little bit of everything, voice, radar/sonar, morse code, video... you name it, everything from 0 to 10.2 GHz was my playground.