CFSCE is located on CFB Kingston. It is not a part of RMC, although the two are close to one another, and share some facilities such as the field house, and some medical/dental resources. I don‘t have any pictures of it, but it isn‘t particularly picturesque anyway. It occupies several different buildings on base, all of which are on the Vimy side (base straddles the highway, and is divided into Vimy and MacNaughton sides).
Once you finish your QL3 course, you will be posted, in all probablility, to either Edmonton, Petawawa, or perhaps Kingston, or, if you are a francophone, Valcartier. If Edmonton, Pet, or Valcartier, you will be posted to one of the Brigade groups. Each Brigade group has a unit called a "Headquarters and Signals Squadron", which provides nearly all communications services to the Brigade while it is in the field. Also, each unit within the Brigade has an integral Signals Troop/Platoon. These sub units take care of sigs stuff for the unit they are attached to. As a new guy, you‘ll probably be in HQ&Sigs more so than in the other units.
If you get posted to Kingston, then in all likelihood you‘ll be posted to the Canadian Forces Joint Signals Regiment. That‘s a whole different ball of wax, and frankly, as a new guy, you probably won‘t get posted there. Always a chance, but it doesn‘t seem to happen that often. So the short answer to your question would be: get ready for Edmonton, Valcartier, or Pet. That‘s all I have time for writing right now--I hope that helps you out a bit. Feel free to ask for more info if you still have any questions.