2021-01-09, 23:56:08
My suggestion is to check two things:
First; are the two sides of the antenna of equal length? This is meant to be a balanced antenna so each half of the dipole should be the same length within a couple of inches.
Second; check the total length of each side of the antenna plus the feedline. If it is a half-wavelength (or multiple) on any band you are using there will be a very high impedance at the tuner that may be outside its tuning range. If that happens, as Rob suggested, try shortening the feedline.
Also check the ladder line doesn't come anywhere near anything metallic (soffit, fascia, eavestrough etc)
If you can't locate the problem I could come to your place, if you wish, to help troubleshoot.
First; are the two sides of the antenna of equal length? This is meant to be a balanced antenna so each half of the dipole should be the same length within a couple of inches.
Second; check the total length of each side of the antenna plus the feedline. If it is a half-wavelength (or multiple) on any band you are using there will be a very high impedance at the tuner that may be outside its tuning range. If that happens, as Rob suggested, try shortening the feedline.
Also check the ladder line doesn't come anywhere near anything metallic (soffit, fascia, eavestrough etc)
If you can't locate the problem I could come to your place, if you wish, to help troubleshoot.
John VA3KOT
Blog: HamRadioOutsideTheBox.ca
Blog: HamRadioOutsideTheBox.ca