I am planning to move into a new apartment, and of course would like to install a HF antenna there, on the roof if possible.
Today I noticed a small Yagi antenna on the roof of the building , more than likely for VHF, but more interesting, seems to be some massive long wire antenna coming from the roof which spans across multiple buildings as shown in the photos below.
Closer inspection, it looks like ladder line of some sort. Would anyone know what exactly this is? I have a feeling that I may be unlucky and already there is a HF HAM operator living the building.
However this "wire antenna if it is" spans across multiple apartment buildings, so i'm not really sure what i'm looking at here:) Thanks in advance.