A BE36 PLT DEPARTED FME; WHICH IS WITHIN THE DC ADIZ; WITHOUT PERMISSION OR A SQUAWK.

Narrative

I DEPARTED THE ARPT VFR WITHOUT FIRST GETTING A CLRNC INTO THE ADIZ AND WITHOUT BEING ASSIGNED A DISCRETE XPONDER CODE (SO I WAS SQUAWKING 1200). I HAD FILED AN IFR FLT PLAN; BUT WAS UNABLE; AFTER 3 TRIES; TO REACH POTOMAC DEP ON 119.7 TO ACTIVATE IT AND RECEIVE MY IFR CLRNC. I TOOK OFF AND AGAIN TRIED TO CONTACT DEP AT 350 FT AGL. I TURNED DOWNWIND AND AGAIN TRIED TO CONTACT DEP AT 1000 FT AGL; BUT THE FREQ WAS EXTREMELY BUSY AND I RECEIVED NO REPLY. SO; I TURNED TOWARD OTT; IN ACCORDANCE WITH MY FILED FLT PLAN. AS SOON AS THERE WAS A BREAK IN THE RADIO TFC; I AGAIN CALLED POTOMAC DEP AND THIS TIME WAS ABLE TO ASK TO ACTIVATE MY IFR FLT PLAN. I HAD STAYED BELOW THE CLASS B AIRSPACE (MY ALTIMETER READ 1480 FT; ALTHOUGH I ANNOUNCED MYSELF AT 1500 FT). I WAS TOLD TO IDENT AND WAS GIVEN A VECTOR OF 090 DEGS OUT OF THE ADIZ. ONCE OUTSIDE THE ADIZ; I WAS INFORMED OF MY VIOLATION AND GIVEN A TELEPHONE NUMBER TO CALL WHEN I LANDED. DEP ACTIVATED MY FLT PLAN AND ASSIGNED ME A XPONDER CODE AND THE REMAINDER OF THE TRIP WAS UNEVENTFUL. I RETURNED TO TIPTON LATER IN THE DAY AND LEARNED THAT THE ARPT HAS AN RCO FREQ FOR GETTING CLRNC INTO THE ADIZ; BUT THIS INFO DOES NOT APPEAR ON ANY CHARTS AND IS NOT POSTED ON THE EXTERIOR OF THE RAMP BUILDING. I FOLLOWED THE SAME PROCS I FREQUENTLY FOLLOW AT W97 OR JGG OR OTHER RURAL ARPTS WHERE A CLRNC IS NOT AVAILABLE ON THE SURFACE. I DEPART OVER 20 TIMES EACH MONTH FROM JYO; WHICH IS ALSO INSIDE THE ADIZ; AND I HAVE NEVER MADE THIS MISTAKE. I BELIEVE THAT IT WAS THE UNFAMILIAR ARPT AND A MOMENTARY LAPSE OF SITUATIONAL AWARENESS WHICH PRECIPITATED THIS INCIDENT. HAD I REMEMBERED THAT THE TIPTON ARPT WAS WITHIN THE ADIZ; I WOULD NEVER HAVE DEPARTED WITHOUT A CLRNC.