PA-28 pilot reported an near midair collision with another light aircraft in the vicinity of 1q4.

Attributes
ACN	1385368
Time
Date	201609
Local Time Of Day	1201-1800
Place
Locale Reference	NCT.TRACON
State Reference	CA
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	PA-28 Cherokee/Archer/Dakota/Pillan/Warrior
Operating Under FAR Part	Part 91
Flight Phase	Cruise
Route In Use	Direct
Flight Plan	VFR
Aircraft 2
Make Model Name	Small Aircraft Low Wing 1 Eng Fixed Gear
Operating Under FAR Part	Part 91
Flight Phase	Cruise
Flight Plan	VFR
Person 1
Function	Single Pilot Pilot Flying
Qualification	Flight Crew Commercial Flight Crew Instrument
Experience	Flight Crew Last 90 Days 25 Flight Crew Total 2500 Flight Crew Type 350
Events
Anomaly	ATC Issue All Types Conflict NMAC
Miss Distance	Horizontal 200 Vertical 50

Narrative:

I was at 3;500 feet heading 085 approximately over new jerusalem (1q4). I was under positive radar contact with norcal. I had just confirmed radar contact about 10 minutes earlier.an airplane; I believe another single engine; head on in a westerly direction; missed us by no more than 150-200 feet. I had no time to react and the other aircraft passed just above me and to my right.I advised ATC about the near miss and was advised 'sorry; we were pretty busy'.

Original NASA ASRS Text

Title: PA-28 pilot reported an NMAC with another light aircraft in the vicinity of 1Q4.

Narrative: I was at 3;500 feet heading 085 approximately over New Jerusalem (1Q4). I was under positive radar contact with NorCal. I had just confirmed radar contact about 10 minutes earlier.An airplane; I believe another single engine; head on in a westerly direction; missed us by no more than 150-200 feet. I had no time to react and the other aircraft passed just above me and to my right.I advised ATC about the near miss and was advised 'sorry; we were pretty busy'.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.