Small Aircraft
Air Traffic Control Fully Certified
Air Traffic Control Time Certified In Pos 1 (yrs) 2
Distraction; Human-Machine Interface
ATC Issue All Types; Airspace Violation All Types; Deviation / Discrepancy - Procedural Published Material / Policy
Human Factors; Procedure; Equipment / Tooling; ATC Equipment / Nav Facility / Buildings; Environment - Non Weather Related
Aircraft X was IFR on V64 eastbound level at 11;000. He was flashing at Center sector 10 for over 30 miles traveling at 170 knots. Center never took the handoff. I entered centers airspace by about 3 miles. At the TRM VOR Aircraft X cancelled IFR. I took the handoff back; changed his flight plan in the NAS to VFR and flashed a handoff to center sector 9. During the winter/spring months the sector I'm working is very busy and congested. PSP is unfortunately only Class D because our traffic during the summer is very slow. Because of high terrain our jet departures depart on a procedure that takes them runway heading for 5-6 miles then turns right to PSP VOR. The problem is we don't have radar through out the Banning Pass; so VFR aircraft show up out of no where and in the face of our jet departures.  The Banning Pass is a very congested airspace; because of high terrain the Pass is only about 8 miles wide. VFR aircraft going though the bass below 6;000 get lost on our radar. A lot of aircraft fly through at 4;500 or 5;500.At the time of the incident I had numerous jets departing PSP; I had 1 Jet calling on the ground at TRM requesting IFR departure but because of bad radios coverage I was struggling to talk to him. And I had at least 8 VFR aircraft going westbound all in the same small area at around the same altitude.METROPLEX 1 dropped less than a month ago; a lot of procedures and airspace have changed for my area. Taking in so many new procedures and changes for an airspace that was already too large and complicated causes the controller to question things they knew and were comfortable with before.I had that deal because I was distracted with all the VFR aircraft in one small area. And because of all the changes I temporarily forgot what my airspace was over the TRM VOR. The majority of my airspace is surface to 13;000; but in 1 month is changes to 15;000. Center owns a small shelf 11;000 and above. SoCal unnecessary has the ability to get radar through the Banning Pass. All they have to do is turn on the radar we have with March approach. The problem is 'Who will pay for it!!?' So they don't. And every day the controllers work to busy of traffic; failing radio coverage and major radar blind spots. They PSP area during the winter is incredibly dangerous and planes will crash there! I'm surprised they haven't already. The airspace when its busy is completely unmanageable. And in less than a month we are taking on more airspace already and new unnecessary procedures.SoCal took the PSP airspace and never manned the area for it. We've made it work because we can leave it combined during the summer months; but come the end of April we will not be able to. And we don't have the numbers to man our sectors and traffic is increasing everyday.
SoCal TRACON Controller reported an airspace violation attributed to the lack of radar through the Banning Pass.