I use a Midland 75-822 with the rubber ducky antenna it comes with. Works great on the trail even with my top up. The range isn't great but plenty good enough for a group running trails together. I was in a group of 20 Jeeps running around all over the place and had no trouble.
2013 Wrangler Sport S. Max tow, 3.73, connection package, power package, upgraded Alpine, Rough County stubby bumper mod, Rugged Ridge light bar, Ace rock sliders, Rough Country 2.5" lift, 15" MB TKO's, 33" Duratrac's, Spiderweb Shade.