Just testing with Brian VK5BC on 40m WSPR with signals, me RXing beaming toward the Aurora
You can see, esp on the Spect Lab (red display) where from bottom upward I was beaming toward Aurora, then part way through last transmission I moved the yagi 90 deg to be beaming direct at Brian and the side spread of the signal disappeared and was able to decode then. Also see in the WSPR display when I turned his was the white in the center of his signal indicating signal getting VERY strong.
On the WSPR interfacet at 1140 utc Brian was running 50W you can see wider looking spread on the signal.
The Rock Hill, NSW
Station monitoring Tropospheric & Ionospheric propagation 24 hours a day