I have used this BNC Male CCTV Coaxial Camera Adapter / Video Balun Connector before and can say that it does work.
Very easy to setup and use. See closeup pictures below:
Amazon link of where I got them: BNC Male CCTV Coaxial Camera Adapter / Video Balun Connector
BNC Male CCTV Coaxial Camera Adapter Video Balun Connector Front:
BNC Male CCTV Coaxial Camera Adapter Video Balun Connector Back:
*More details to come 🙂