PLT OF C172A HAS RADIO PROB WHILE DEPARTING CLASS B AIRSPACE. ON ENTERING CLASS C AIRSPACE THE RADIO PROB BECOMES EVIDENT AGAIN. GPS ALSO IS SKEWED.

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WHILE ENRTE FROM SEE TO RAL; I HEARD PLT RPT TO SOCAL THAT BOTH HIS GPS UNITS WERE INOP. AT FIRST I THOUGHT NOTHING OF THIS. SHORTLY AFTER THIS; SOCAL TOLD ME THEY WERE RECEIVING 'CARRIER ONLY' FROM MY COM RADIO. AT THIS TIME; I NOTICED MY PORTABLE GPS OFF LINE. I BEGAN TO TROUBLESHOOT MY RADIOS. I REGAINED RADIO CONTACT WITH SOCAL WITH MY #2 COM. AT ONE POINT; I BELIEVED BOTH COM RADIOS HAD FAILED OR HAD AN INTERCOM PROB AND BROUGHT OUT THE HAND HELD COM RADIO. AS IT WORKED OUT; SOCAL SEEMED FRUSTRATED WITH ME AND SAID SQUAWK VFR RADAR SVC TERMINATED ONCE I WAS OUTSIDE OF THE CLASS B AIRSPACE. WHEN I CONTACTED THEM AGAIN I GOT A NEW CODE PREVIOUS TO ENTERING THE MARCH AFB CLASS C. THEY SEEMED VERY BUSY AND I WAS SCOLDED BY A FEMALE CTLR FOR USING TOO MUCH AIR TIME WHEN I TRIED TO EXPLAIN MY PROB. I DID MAKE A PIREP. I GOT NO FURTHER ADVISORIES AND NO HDOF TO THE TWR. I CONTACTED THE TWR BEFORE REACHING THE 5 MI RADIUS. GPS WAS WORKING NOW. THE REASON I'M WRITING THIS RPT IS TWOFOLD. 1) I'M SURE I'M NOT IN VIOLATION OF THE 'RADIO CONTACT' REQUIREMENT FOR THE AIRSPACE I FLEW THROUGH. SOCAL MAY SEE THINGS DIFFERENTLY. 2) WHILE TROUBLESHOOTING MY COM RADIOS; I SOMEHOW THOUGHT THE GPS PROB WAS RELATED. NONSENSE. WHEN LOOKED AT BY THE AVIONICS SHOP THEY FOUND THE #1 COM HAD A TRUE BREAKDOWN AND NO OTHER DEFECTS IN ANY OTHER SYS. FOR A SHORT TIME IN THE AIR; I BELIEVED BOTH COMS WERE OUT. I WAS PROBABLY TRYING SO MANY COMBINATIONS THAT I MUST HAVE FORGOTTEN TO SELECT COM #2 ON THE AUDIO PANEL. (I WAS ALONE.) QUESTION: I TALKED TO FSS AND THERE WAS NO NOTAM FOR GPS OUTAGE.