3db Racing Antenna recommended when it can be mounted in the center of a flat roof, with no objects 18" in any direction. If you have a roof rack, light bar or need to mount somewhere other than the center of the roof, select the No Ground Plane Antenna.
Frequency Range: 138-174mHz Please specify race channel in notes above or we will tune (cut) to mid (151.625)
Cut Chart:
Frequency Whip Length
150 45 1/8"
151 44 3/8"
152 44 1/8"
153 43 3/4"
154 43 3/8"
155 42 7/8"
156 42 5/8"
157 42 1/4"
158 41 3/4"
159 41 1/4"