I made two years ago a link dipole for six bands which I have used so far successfully. SWRs are typically between 1.1 to 1.4. I used normal 1.5 mm2 electrical installation wiring (five wire). Now I am making new similar antenna but I met problems. With the same wire lengths I am unable to tune the new antenna, SWR’s are more than 3.0 and I do not find the reason! Feeder cable is about 20 meter long RG58.
Can somebody help me, what to do next? I feel me very stupid! Is the length of feeder cable critical or should I change the 1.5 mm2 electrical installation wiring to “real antenna cable” or both? The length of feeder cable of well working link dipole is about 25 meter. Just now I feel me being handless.
73, Saku OH2NOS