Alpha Numeric confusion!


FenDrifter
 

Hi all
As a complete novice to this game, I’ve got to admit to utter confusion about loggings I’ve seen on here. What do they all refer to? If a logging was for instance Radio Romania International etc etc I’d understand it, but when, again for instance, it’s 2BBK (I made that up) it makes no sense to me. Is there a simple explanation please?
Drifter

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