I have the Comet CA-2x4sr nmo antenna on a magnet mount on the center of the roof of my 2014 F-150. Its great swr on Ham Bands. When I have my Wouxun KG1000g hooked to it for GMRS its fine up to freq 462.675, The local repeater tx is 467.675 and on low power the SWR is acceptable at 1.99. But on Medium Power its 2.39 and on High Power its over 3.00! I live on the edge of the closest repeater and want to tune it to a lower SWR for 467.675 and I cannot find any info on which section to trim and how much? With Ham bands being 1.01 I have room to work to bring the 467 lower. Can anyone explain how to tune it lower swr on 467? Thanks!
