2x5/8 l Ground Plane base station colinear antenna for land and marine service.
It works on 135...175 MHz by using the cutting diagram enclosed.
The matching coil is DC feeded for a perfect protection from the static discharges.
GPF 22-N is made of fiberglass, non-corrosive aluminium, stainless steel and its die-cast strong base assures the maximum robustness and the best performance. Tuning is easy by following the attached directions