I'm ATIS, not LCIS, but our backgrounds are similar.
If you're interested in communications technology and maintaining/repairing equipment, then
the LCIS, ATIS, and NET trades are in that direction. If you're interested in operating
communication equipment, then maybe the Sig Op or Comms Research trades may hold
opportunities.
Each base, unit, or deployment location has its own characteristics, but as an
over-simplification, the CF doesn't utilize the cutting edges of technology everywhere.
Depending on your LCIS/ATIS posting, you'll experience a multitude of technologies, some new, some
old, in a variety of situations, configurations, and specializations. You might be attached to
a unit deploying radar, radio or sat comms, crypto devices, maintaining telecommm PBXs
and cable plants, or deploying a forward operating location in an army. air force or joint force setting.
On the other hand, civy side education and experience holds opportunities. Depending
on your courses (electronics engineering at college or university level) and location of work,
you might be involved in the cutting edges of technology, work more at the component level,
and experience more specific career path. You can also acquire civy education and apply to
the military later as a semi-skilled recruit.
Personally, I acquired civy-side electronics education and experience and joined the CF later.
The civy side experience and education was very product specific and highly technical.
You also have a job today but maybe not tomorrow depending on the economy. The military
experience is more system level and very broad, but the situations and experiences are
beyond what civy side can offer. I've worked in my trade in a variety of locations and situations
and its fantastic. Much more exciting. The military offers a decent pay scale, pension, and
benefits rivalling civy side equivalents. But civilian careers and military careers hold their own
pros and cons. Ask lots of questions.
Good luck.