I am not sure where you are getting your information that cutting the losses in your 160 vertical from 60 - 37 Ohms will have no difference in performance - technically or noticeably but its not correct.
Reducing ground losses is THE ISSUE on 160M. Calling a 1.2:1 SWR great and not realizing what is being traded to get there, it really lacking of the right solution. A 160M antenna should have the lowest possible losses for the site and then the resulting SWR matched or tolerated. Not the other way around. 73 Ed N1UR "Date: Sun, 18 Nov 2018 11:41:12 -0500 From: <jayb1...@optonline.net> To: <k...@myfairpoint.net>, <w...@zoominternet.net>, "Topband" <topband@contesting.com> Subject: Re: Topband: Impedance of inv l? Message-ID: <F43BD6F1A0AD4625907582ABB92BBD54@jayPC> Content-Type: text/plain; charset="UTF-8" Theoretical impedance for a perfect 1/4 wave ground plane is 37 ohms. 60 ohms is great; 1.2:1 VSWR ? leave it alone, you will never notice any difference if you try to improve it. It will change with rain, snow, etc anyhow..73 Jay ny2ny" _________________ Searchable Archives: http://www.contesting.com/_topband - Topband Reflector