I recently installed a groundplane on my antenna that I figured I'd give a try from
http://www.cbradiostore.com/servlet/the ... ial/Detail
I was skeptical of it but as cheep as it was I figured what the heck
I noticed about a 30% increase with it still all mounted on my roof rail on the passenger side, after mounting to the crossbar i built, it is about 200% better than previously experienced
you can see both the crossrail and the groundplane under the WQD and Wilson Flex-4 on this fabrication thread
http://www.lostjeeps.com/forum/phpBB3/vie ... hp?t=43767