Is this what I need to convert the cat5 to coax?
https://www.amazon.com/VIMVIP-HD-CVI-Passive-Connector-Transmitter/dp/B06XCGZ3H5/ref=pd_aw_sim_sbs_60_1?_encoding=UTF8&psc=1&refRID=8M7C85THY7YRA636T4EH
I'm going to add more cameras down the road I want to test a basic camera to set in a few places.