AN ARRIVING SMA PLT RPTS AN NMAC WITH A DEPARTING SMT AT AN UNCTLED ARPT.

Narrative

AS I PASSED 1900 FT MSL; I SPOTTED A LIGHT TWIN CLBING IN A R BANK OFF MY R WING IN WHAT APPEARED TO BE AN INTERSECTING COURSE AT THE SAME ALT. I PROMPTLY DOVE IN ORDER TO PASS UNDER AND CONTINUED DSNDING TO PATTERN ALT OF 1542 FT MSL (1000 FT AGL). THE OTHER ACT CONTINUED THE R TURN AND DEPARTED TO THE SSW AT APPROX 2000 FT MSL. I DOUBT THAT THE OTHER PLT SAW ME. THIS WOULD PROBABLY HAVE BEEN A MISS EVEN WITHOUT THE EVASIVE ACTION. THERE WERE AT LEAST 2 OTHER AIRPLANES IN THE TFC PATTERN FOR RWY 35. THE SUN WAS LOW IN THE SKY; CREATING QUITE A BIT OF GLARE. THE LIGHT TWIN PROBABLY TOOK OFF ON RWY 5; BUT I DID NOT SEE THIS. I DID NOT HEAR ANY RADIO CALL FROM AN AIRPLANE DEPARTING RWY 5. ALSO I HAD NOT YET MADE A CALL WHEN THE INCIDENT OCCURRED. THERE WAS QUITE A BIT OF RADIO TFC FROM THE OTHER AIRPLANES IN THE PATTERN AND FROM OTHER FIELDS IN THE AREA WHICH USE THE SAME FREQ (122.8). I THINK THAT A MAJOR FACTOR IN THIS INCIDENT IS THE DIFFICULTY IN GETTING OUT A POS RPT ON THE UNICOM FREQ WHEN THERE IS SO MUCH RADIO TFC CONGESTION IN THE AREA.