is their really a difference from 15 to 20 to 45 watts out of a 1/4 UHF vehicle grounded antenna? I use a TYT 8600 with 1/2 wave NMO on my SXS to hit local repeater as a cell phone backup out on the trails, now looking at a Midland MTX275 package that comes with a roof mountable magnet antenna. Only looking at this model due to 2013 Rams with console shifter really have no extra dash space. Will I get decent range or should I put a NMO on it for a ground plane?