Sounds similar to the commo MOS that I had. Official title was 31C, single channel radio operator/maintainer. In the course, we actually spent more time on the UGC-74 teletype than on any other single piece of equipment. And that same item was in our shelters on the back of our HMMWVs. But in my LRS unit, we never used the teletypes, just the radios (HF & FM), and digital burst devices. We called them RATT Rigs, but the higher ups in Division Signal Battalion got huffy about that name.