MD-90 Series (DC-9-90) Undifferentiated or Other Model
Air Traffic Control Fully Certified
Situational Awareness; Confusion
ATC Issue All Types; Deviation / Discrepancy - Procedural Published Material / Policy
Air Traffic Control Issued New Clearance
ATC Equipment / Nav Facility / Buildings; Human Factors
Let me start by saying this event could have been prevented simply by me issuing the CRJ-200 an altitude of 90. I was working D-N for the first time since coming off my RDO's. Fusion RADAR was implemented on my RDO's. I was getting familiar with the new RADAR and adjusting the levels earlier in the session. I never got into a groove and felt comfortable how the targets were moving. However traffic was light and I issued the MD-90 a vector off the STAR and anticipated climbing him as soon as he got turned to the northwest. He delayed his turn then took about 5 miles to make a 110 degree turn or so. I subsequently turned the departure behind him which turned in a more normal fashion. This would not normally have been a factor but the MD-90 was then put in a position where I had to wait to climb him due to arrival traffic. This delay; coupled with the Tower advising me via land line of a no-tag; allowed me to get the two aircraft closer than anticipated. I told the MD-90 to tighten his turn when I recognized the length it was taking him to turn. I should have then gone back to the CRJ-200 and issued 9;000 feet; but I didn't. I do believe the unfamiliar feeling of the new RADAR had me distracted enough to miss this simple mistake. I asked the MD-90 to say altitude leaving and he said 10;800 while his Mode C read 10;100. Leaving aircraft on the STAR would have eliminated this issue. However I was trying to save some flying miles. I will be more diligent to issue a paper stop on crossing traffic.
TRACON Controller experienced a loss of separation event claiming that working with the new 'fusion' RADAR display was distracting and contributed to the occurrence.