Rick, You can look at the attenuation on a data sheet.
Here is an example of a Belden RG-11 type CATV cable. The center conductor is copper coated steel but the attenuation at 1Mhz is low: <https://edeskv2.belden.com/Products/index.cfm?event=showproductdetail&partid=7131> Since it is used the receiving it is only rated at 300v. I'd be concerned about transmitting with high power or a high SWR. Mike N2MS _________________ Topband Reflector Archives - http://www.contesting.com/_topband
