Dear MW enthusiast

I am struggling to understand the purpose of the Pathloss reflection graph.(Relative Rx vs K-facor)
My customer is insisting on this graph (no problem, I can produce it), but I do not know what the perfect graph should look like.

The customer wants to analyze the graph to see if the spacing between the Main and Diversity antennas is optimal. By playing with the antenna height I can see the graph changing, but I need guidance on exactly what the graph should look like.

Hope there is someone out there with experience to help.

Regards
Anton