Flight Crew Private; Flight Crew Instrument
Flight Crew Last 90 Days 75; Flight Crew Total 4500; Flight Crew Type 3500
Communication Breakdown; Confusion; Situational Awareness
ATC Issue All Types; Conflict NMAC; Deviation / Discrepancy - Procedural Published Material / Policy; Inflight Event / Encounter Weather / Turbulence
Air Traffic Control Issued Advisory / Alert
Human Factors; Weather; Airspace Structure
Flying west bound northwest of EMT talking with [SoCal] was told to turn 20 degrees to the right for eastbound airplane. A minute later heard them tell the eastbound plane to descend 500 feet immediately. About 10 seconds later I saw him on my north side of my airplane just under my wing. Haze flying west bound was a factor. I do have ADS-B and saw the initial conflict but was looking out for the plane after I turned 20 degrees to the right. The controller did not have the other plane turn to his right and I would have been out of the conflict if I continued not turning and going straight. I believe the controller was not on top of the situation and also for me not changing altitude.
C206 pilot reported a NMAC while receiving radar services.