Reading a propogation graph

[zs5vsm]

Hello all. I regularly use Log4OM but I have never been able to understand the colour band graph that appears on the rhs of the map. Could someone put me out of my misery by explaining if the red band is good or whether the black/dark blue at the bottom is good.

Your assistance will be highly valued.

73 ZS5VSM

log4om.JPG (38.21 KiB) Viewed 1045 times

[G4POP]

Red is good - High liklehood of working the other station

Black is bad - Slim to no chance of working him

[zs5vsm]

Thanks Terry

I really appreciate it!!

Rod