FLC OF ACR MLG ACFT DEVIATED FROM ASSIGNED DEP TRACK DUE TO SETTING THE WRONG FREQS INTO THE 2 PRIMARY NAVIGATIONAL RADIOS.

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WE SET OUR RADIOS FOR THE OFFSHORE 1 DEP WHILE DOING OUR INITIAL COCKPIT SET UP AND PREFLT CHKS; I LEFT THE COCKPIT FOR A SHORT TIME; WHEN I RETURNED THE FO SAID WE HAD RECEIVED THE PORTE 8 DEP. HE HAD RESET HIS HSI TO 095 AND MINE TO 135 AND RESET THE NAV RECEIVERS TO OAK AND SFO. RAMP CALLED READY TO PUSH SO WE COMPLETED THE BEFORE START CHKLIST AND PUSHED BACK FROM THE GATE. I HAD NOT NOTICED THE IMPROPERLY SET NAV FREQ DURING DEP BRIEF OR THE CHKLIST. HE HAD SET MINE ON 115.8 AND HIS ON 116.8. WE DEPARTED 10L A MIN OR SO AFTER AN LTT ACR ACFT DEPARTED ON 10R. I SHOULD HAVE QUESTIONED FOLLOWING SLOWER TFC SO CLOSE; BUT I ASSUMED THEY WERE ON A DIVERGING COURSE. OUT OF 1500 FT I WAS RAISING FLAPS; ADJUSTING PWR; AND CALLING BAY DEP. WHEN I NOTICE THE FO WAS TURNING R; I KNEW WE HAD A STRONG SE WIND BUT I STILL EXPECTED HIM TO MAKE A L TURN TO INTERCEPT THE SFO 095 RADIAL. I DISCOVERED THE REVERSED NAV FREQ AS THE TCASII SAID TFC; TFC. I SAW THE YELLOW DOT ON THE SCREEN AND TOLD THE FO TO CORRECT L AND CLB. AS WE MANEUVERED THE DOT WENT RED AND THE TCASII SAID MONITOR VERT SPD THEN CLB; CLB. WE PASSED OVER AND TO THE L OF THE TFC. BY THAT TIME WE WERE STEADY ON THE 095 DEG RADIAL OF SFO. AFTER WE STARTED EVASIVE ACTION THE CTLR CAME ON AND SAID 'VERIFY YOU DEPARTED 10L' THEN 'VERIFY YOU WERE GIVEN THE PORT 8' THEN 'VERIFY YOUR DEST SAN DIEGO.' WE HAD OUR HANDS FULL AT THE TIME AND DID NOT NEED TO PLAY 20 QUESTIONS WITH HIM. A SIMPLE CALL TO 'TURN L HDG 080 DEG TO INTERCEPT THE 095 DEG RADIAL' WOULD HAVE BEEN HELPFUL. WE WOULD HAVE BEEN GLAD TO ANSWER HIS INTERROGATION AFTER THE DANGER WAS PAST. CONTRIBUTING FACTORS: THE FO WAS VERY EXPERIENCED AND I DID NOT DOUBLE CHK HIS WORK. SIMILAR NAV FREQS WERE TRANSPOSED AND POSSIBLY MISSED DUE TO THE TYPE. I DID NOT CHK THE FO NAV UNTIL WE WERE BANKED 20 DEG R POSSIBLY BECAUSE I HAD CONFIDENCE IN HIS ABILITIES. HIS ERROR WAS NOT IMMEDIATELY OBVIOUS BECAUSE HE HAD SET MY HSI FOR THE INTERCEPT ON THE 135 DEG RADIAL OF OAK. I THOUGHT THE 135 DEG RADIAL OF OAK WAS CLOSER TO THE SFO ARPT. THERE IS NO DISTANCE SHOWN ON THE DEP CHART. LESSONS LEARNED: NO MATTER HOW EXPERIENCED; ANY CREW MEMBER CAN MAKE A MISTAKE WHEN THERE IS A CHANGE TO AN UNFAMILIAR PROC; STOP EVERYTHING AND BECOME THOROUGHLY FAMILIAR WITH IT; THEN BRIEF IT THOROUGHLY AND RECHK ALL NAV EQUIP AGAIN AT THAT TIME. I WILL PERSONALLY WANT THE INITIAL DEP RADIAL ON MY SIDE FROM NOW ON EVEN THOUGH THE FO IS FLYING.