Yes, ARK, I use the AA600 software to not only wideband my 80M dipole with a section of RG11 but also to adjust some of my antennas for a better SWR by using sections of RG11. But it does not always work. Conditions have to be right. It's interesting in the AntScope software I can open the 'add cable' dialog box and in the Smith chart view watch the antenna curve rotate around the center by adding lengths of RG11. The SWR view shows the same thing but in the SWR relm. It actually works too in reality.