Hi dear Guru,
congratulations on your succesfull balcony antenna system, it is performing very well.
Lucky you, that has a clear audio free from annoying QRM most time and can chase with that!
Just for fun, I did a very simple simulation with Mmana, to model your antenna and balcony.
I couldn’t afford to see the nice radiattion pattern with this easy to use software, but to be honest, I think that to do it properly I should know how to model the building so that prediction is accurate.
Anyway, here you see the noce patterns you -perhaps- are producing with your cheap antenna (20 m height above ground level):
Model of the wire and fence in your balcony:
·3D in 10 MHz: main lobe at 18º
Azimuth pattern in 10 MHz:
Azimuth pattern in 14 MHz:
As said, I wouldn’t trust much on the figures, but I could draw two main conclusions:
your antenna is an effective system radiating with horizontal polarization at a proper low elevation angle, and
the balcony fence plays an important role in radiation, so make sure your wife is far from the balcony when chasing; otherwise, an accidental contact with the fence can produce harmful effects on your Sota scores…
VY 73 my friend, and keep on enjoying with it