i would assume that its been modded to work 11 meters. (you said the guy did a peak and tune?)
if you got a chance to hook it up, turn the "BAND KNOB" to "E/A" and "BAND SWITCH" to "HI"
that will put you where you wanna be for your typical 40 channel CB frequencies.
Dana 44 Front 60 Rear
TeraFlex - LCG Max Kit, SYE, 2-Low Kit, High Steer Kit w HD Tie Rod, Dual Rate S/T Sway Bar
FAB Tech Front Bumper
Poison Spider - Fenders, Roll Cage
37x12.50x17 Pro Comp Mud on 17" Pro Comp Steels
Too much more to list....