Residential use? 30-40+ years ago?
If you want to get technical, during WWII in military uses. https/en.wikipedia.org/wiki/RG-6
https/en.wikipedia.org/wiki/Joint_Electronics_Type_Designation_System
Residential use? 30-40+ years ago?
If you want to get technical, during WWII in military uses. https/en.wikipedia.org/wiki/RG-6
https/en.wikipedia.org/wiki/Joint_Electronics_Type_Designation_System