Can anyone tell me what the theoretical and actual cross polarization attenuation from horizontal to vertical polarization is ?
The reason i ask is that i have the idea that for receive a vertical yagi has little gain for horizontal signals, and this idea seems to be backed up by the fact that a vertical 3 element yagi i have built does indeed seem to null out vertical signals much better then another 4 element horizontal yagi that i have. So i'm trying to work out what's going on and knowing the cross-polarization attenuation is a good start.