how to read the polar chat?

[Steve Zhou]

Hi,

On this diagram, the antenna is at the center of the circle. The strongest signal is at the outer ring. The signal strength attenuates as it travels, then why the signal strength at '3' is weaker than '1'? Isn't '3' is closer to the antenna? I must be misunderstanding something on the chat.

[Scott Fella · Accepted solution]

I’ll try to explain it a different way. If you look straight at and object, the object you are looking at is in focus and the surrounding gets gets harder to view because of what you are focusing on. As with directional antennas, they foucused. At that distance anyways, signal will not be good.