The,

Where was this that you first heard it, Europe?

No. It is not at all used here.

I would think anybody hearing it for the first time, would hear the word
"no" in there and wouldn't think that meant the traffic was sighted,
doh, im mean "in sight".

Then you should listen in on Napa, CA, tower for a while (home of Japan
Airlines basic training). Or Goodyear, AZ (home of Lufthansa training). Or
any other place with a lot of non-native speakers. Most people who have not
grown up with English language war movies will just go "Huh?" upon hearing
that.

--
Thomas Borchert (EDDH)