I do [and have done] LAN Cabling - CAT 3 UTP for Voice / Analog MODEM / Fax, CAT 5 UTP for Data [some Ethernet 802.3, most Tolken Ring 802.5].
Some Line Driver / Backbone stuff, some Security / CCTV stuff.
A small amount of "Thinnet" [10 base 2 or RG-59/U coax and triplex]. Never installed 10 base 5, but have seen a lot, repaired more and removed even more!
A few installs with the older IBM type 2 cabling.
Quite a bit of MATV / CATV stuff.
Also whole house audio, intercomm and low voltage control stuff.
Scott " 35 " Thompson
Just Say NO To Green Eggs And Ham!