[CQ-Contest] Understanding the dynamic error free RBN algorithm

[Brett Graham]

I had said in reply to something S56A4ZR had said:

> Let's ignore all the mechanisms responsible for wrong-frequency RBN 
> spots, shall we?

That should have been:

Let's ignore all the OTHER mechanisms for wrong-frequency RBN spots, 
shall we?

-ex-VR2BG/p.