SMA ON FINAL APCH AT AN UNCTLED ARPT HAS A CONFLICT WITH ANOTHER ACFT LNDG ON THE OPPOSITE RWY.

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WHILE APCHING THE ARPT IN VFR CONDITIONS AT 2500 FT MSL; I CALLED THE UNICOM FREQ; REPEATEDLY ASKING FOR AN ARPT ADVISORY. THERE WAS NO ANSWER; NO RPTED TFC HEARD ON CTAF. WHEN I FOUND THE ARPT VISUALLY; I WAS ABOUT 4 MI NW. I CALLED ON CTAF AND ANNOUNCED MY POS AND MY INTENTION TO ENTER A L DOWNWIND ON A 45 DEG TO RWY 4. I NEXT ANNOUNCED THAT I WAS DOWNWIND FOR RWY 4. WITH NO ACTIVITY IN SIGHT; I MADE NO FURTHER ANNOUNCEMENTS. I TURNED BASE AND FINAL. UPON TURNING FINAL; I SAW AN AIRPLANE COMING AT ME ON RWY 22. I COULD ONLY SEE HIS NAV LIGHTS AND ROTATING BEACON. HE WAS NOT USING HIS LNDG LIGHT. I KEYED THE MIKE AND ASKED IF HE HAD A RADIO; NO ANSWER. I LANDED AND WAITED. HE DID SOME TOUCH-AND-GOES; NEVER ANNOUNCING HIS POS. WHEN HE LANDED; I ASKED HIM IF HE WAS THE ONE I ALMOST HIT HEAD-ON. HE SAID YES; HE WAS PRACTICING NDB APCHS WITH AN INST STUDENT. HE WAS A CFII. THIS ARPT WAS PRACTICALLY DESERTED THAT NIGHT; YET WE ALMOST COLLIDED. IF HE WOULD HAVE CALLED HIS POS; EVEN PERIODICALLY; THIS WOULD HAVE BEEN AVOIDED. I ENTERED THE AREA WITH VFR FLT FOLLOWING. HE WAS NOT TALKING TO APCH CTL.