PLTDEV.

Narrative

ACR X ASSIGNED AND TRACKING HDG 225 DEGS UGA Y BEECHCRAFT KING AIR 200 ASSIGNED AND TRACKING HDG 140 DEGS. THE ACFT WERE SEPARATED BY 1000 FT AT THEIR ASSIGNED ALTS. UGA Y PASSED 4 MI DIRECTLY IN FRONT OF ACR X. I HAD ESTABLISHED 'DIVERGENCE' AS PER FAA 7110.65 PARAGRAPH 5.70. I DSNDED UGA Y TO 1900 FT THEN ISSUED ACR X 'TURN R HDG 250 DEGS; REDUCE SPD TO 180 KTS. THE PLT ACKNOWLEDGED. 3 SWEEPS OF THE RADAR LATER; I OBSERVED THAT ACR X TURNING L INSIDE OF THE KING AIR. I CONFIRMED THAT ACR X WAS TURNING TO 250 DEGS. THE PLT SAID 'AFFIRMATIVE.' 2 SWEEPS LATER THE ACR X WAS TRACKING A R TURN AWAY FROM THE KING AIR. THE PLT OF ACR X ASKED 'HOW ARE WE DOING NOW?' ACR X WAS TCASII EQUIPPED AND CERTAINLY SAW THE KING AIR (WHICH HAD A FUNCTIONING XPONDER) AND PROBABLY RECEIVED TA AND POSSIBLY AN RA. IF THEY HAD THOUGHT THAT I HAD ISSUED THEM A 180 DEG HDG I CANNOT BELIEVE THAT THEY WOULD NOT HAVE QUESTIONED IT. THE PLT WAS EXCEPTIONALLY COURTEOUS THROUGHOUT AND AFTER THE EVENT. MY SPEECH TONE ALSO REMAINED NORMAL.