Ropework
While ropes themselves aren’t an active part of the antenna (well, not usually), they are a critical part of many antenna installations. I grew up using ropes and knots regularly, for antennas, camping, Search and Rescue, etc., but those skills aren’t as common today.
So, if ropes and knots aren’t second nature to you, here is an introduction.
Related articles:
Using a throwing bucket.
How to wind up a rope or wire so it doesn’t tangle