Hi Franki, Because of the difference in ground conductivity (I > think?), the antenna resonates 1MHz too high compared to ON4BAI's QTH > (>100km away). Should fix that one of these (days, weeks, months?). so, what are you going to do? Fix up the ground? Import on4bai's type of ground? :))) 73 and good luck with your projects, Oliver DJ9AO