Respectfully requesting information on E

[Irishsquid]

I'm currently AD Navy. Looking at getting out, going home to MS, and going to 20th Group. I'm either looking at 18B or E. (Assuming, of course, that I am given a choice...) My dad has given me a basic rundown on B. But what exactly does 18E entail? I currently work comms for the Navy, though I'm sure E would be completely different...but I do understand the antenna theory, radio wave propagation, that sort of thing...if someone could give me just a basic rundown on what to expect, it would be very much appreciated.