[QUOTE=CaptainPilot;3721845]As a matter of fact, everyone knows the answer but no one understands; what is the real meaning behind it? In most cases, it’s associated with phraseology but aviation English doesn’t rely solely on it. So what’s this precisely? Let me share my opinion on this phrase in the article below.

Lets not. You could have just said the radio. Not a whole lot of non english speaking communications between San Diego and DC.