CLIMBING MLG HAS NMAC WITH SMT.

Narrative

SHORTLY AFTER CLBING THROUGH 10000' AND APPROX 79 DME S OF MCW; AND HAVING BEEN CLRED TO CLB TO FL230 DIRECT TO MCW; CENTER DIRECTED US TO TURN 30 DEGS LEFT FOR OUR CLB. I STARTED A TURN TO 330 DEGS. TURNING THROUGH APPROX 340 DEGS THE F/O GRABBED THE CTLRS AND LEVELED THE WINGS. HE THEN STATED THAT WE HAD JUST MISSED ANOTHER ACFT AT OUR ALT; 11500'. OUR ALTIMETER WAS SET AT 29.92 AS PER ATIS DSM. WE HAD ACFT FLOOD AND WING LIGHTS ON. THE OTHER ACFT WAS HDG S WESTERLY. THE F/O THOUGHT IT TO BE WHITE AND BEIGE IN COLOR. I CONTACTED CENTER WITH THE DETAILS OF THE INCIDENT. HE STATED THAT THEY HAD NO TFC ON RADAR. I LATER ASKED HIM WHY HE HAD GIVEN US A 30 DEG TURN. HE STATED THAT IT WAS FOR XING TFC. NO PAX OR CREW WERE INJURED. DUE TO HIGH CLOSING SPDS AND WORK LOAD ON PLTS AND CTLRS; WE NEED MANDATORY TRANSPONDERS NOW! IT IS TIME TO MAKE THE GA MODEL T FORD MENTALITY FACE UP TO THE 20TH CENTURY. MANY HAVE DIED AND 80+ MORE ARE STILL HERE BY PURE LUCK. IF I CAN BE OF HELP; PLEASE FEEL FREE TO CONTACT ME AT ANY TIME.