OPERROR OCCURRED WHEN INSTRUCTOR CTLR BECOMES INVOLVED WITH RELEASING TFC OFF A SATELLITE ARPT WHILE THE DEVELOPMENTAL CTLR ISSUES A DSCNT CLRNC TO AN MU2 THROUGH AN OCCUPIED ALT.

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I WAS PROVIDING OJT ON RADAR E LOW; WHICH WAS COMBINED WITH RADAR E HIGH AND E COORDINATOR. BARKSDALE AFB WAS CONDUCTING A TRAINING EXERCISE COMPRISED OF A 16 ACFT (B52'S) DEP. THE DEP INTERVAL WAS SUPPOSED TO BE 1 MIN IN TRAIL. ALL 16 ACFT HAD ABCD AS A CALL SIGN PREFIX; FOLLOWED BY 2 DIGITS. THE BRIEFED DEP INTERVAL WAS KEY IN MY DECISION TO NOT HAVE THE COORDINATOR POS SPLIT OFF. SIMILAR CALL SIGNS FOR THE B52'S WAS DETRIMENTAL TO GOOD HEARBACK/READBACK. THE OPERROR OCCURRED WHEN ACFT Y WAS ISSUED A DSCNT CLRNC FROM 13000 FT TO 5000 FT WITH OPPOSITE DIRECTION TFC ABCD 12(B52) LEVELING AT 12000 FT; APPROX 12 MI APART WITH A 700 KT CLOSURE RATE. AT THE TIME THE DEVELOPMENTAL ISSUED THE DSCNT CLRNC; I WAS COORDINATING A RELEASE CLRNC FOR AN IFR DEP OFF OF A SATELLITE ARPT; WITH RADAR FLT DATA. I NOTICED THE CONFLICT AND ISSUED TFC ALERTS TO BOTH ACFT WHEN THEY WERE APPROX 6.5 MI APART. POOR RADIO QUALITY; NUMEROUS HEARBACK/READBACK ERRORS; DEP INTERVALS NOT ALWAYS 1 MIN IN TRAIL; B52 NOT WILLING TO ACCEPT VECTORS OFF OF RWY HDG FOR BTWN 10-15 MI; WERE ALL INGREDIENTS THAT FACTORED INTO THE DIFFICULTY LEVEL. I BELIEVE THAT IF THE COORDINATOR POS HAD BEEN OPEN; I WOULD HAVE NOTICED THE JUDGEMENTAL ERROR OF DSNDING THE MU30 IMMEDIATELY; AND TAKEN ACTION TO PREVENT THE ERROR.