Hi Bjorn >>>>> How much I can improve by moving the coil up. What improvement should I expect if center loading at about 7 meter? How about moving the coil all the way up to the top loading spokes? Is it worth the effort? (the pole wont support much up there). .>>>>>
Not much, changing the loading would increase the signal 5-10% , it is around 1 db, however if you can get close to salt water and get the radials wet your signal can increase 10db or more. AA7JV can comment better on that, but close to the water is not good, in the water is unbelievable better. George used get several wires tied with a stone and through it into the water, as you increase the number of the wires, you can see the impedance changing. You will may lose some of the radials and they need to be replaced. The radials could be very short and thin but they will work if in the water. I can hear you almost every day with the antenna you are using now. Regards JC N4IS _________________ Topband Reflector Archives - http://www.contesting.com/_topband _________________ Topband Reflector Archives - http://www.contesting.com/_topband