On 5/19/2012 early evening Country Girl and I did an on air test of the performance of the Cobra 2000 GTL & Varmint XL-250 AMP. I traveled about 11 miles away from the home location to Robbins Hill here in central Maine. The Cobra 2000 GTL is using an IMAX 2000/GPK antenna. Results as follows: Cobra 2000 GTL barefoot power 2 watts dead key & 14-16 watts peak @ 11 miles I was receiving 2 S units dead key, 3 S units at peak. Varmint XL-250 used 75 watts dead key, 400 watts peak, average talking power 300-350 watts @ 11 miles I was receiving 7 S units dead key, 11 S units at peak. S unit = the term of "pounds" on the meter. The mobile in the truck is a Galaxy DX 959 with a Predator Freedom DX-K Mobile Antenna Fighting Stick. With a bigger signal the voice sounded closer. Unfortunately we were getting bleed over from channel 28, Bulldog.