Funny that JIMINDENVER mentions this... I was just going through some old pictures of my OFF-ROAD POPUP trailer..
As you can see I am using one of those $90 LOWES House Type full blown YAGI antennas on my popup...
This was so large it extended out on both sides of my POPUP trailer trailer... I would hit trees on both side when rotating it.
It did indeed outperform any RV antenna I played with...
I eventually destroyed this one having to take it down and fold up for transport after each camping run...
IN all the antennas I tried the WINGUARD BATWING turned out to the overall best to have.
I did however get a very great signals using this eight BOW-TIE panel antenna but it just wasn't suited very well for the RV Trailers...
That omni-directional antenna you have now is not a very good antenna... I would defdinitely get rid of it for the standard old Winegard BATWING one that looks like this one shown here...
Roy Ken