ACR LGT UNABLE CONTACT DEP CTLR AFTER TKOF.

Narrative

INITIAL CLRNC WAS TO DEPART VIA THE CINCINNATI 1 DEP ON RWY 18. RWY HDG TO 6000' MSL. THE ACFT AHEAD WAS TOLD TO MAINTAIN 4000' MSL. AFTER TKOF CLRNC; WE ACCELERATED; TOOK OFF AND STARTED OUR CLB. FOLLOWING A LONG DELAY AFTER TKOF; I CALLED TWR FOR PERMISSION TO GO OVER TO DEP CTL. THERE WAS NO RESPONSE. AFTER WAITING SOME ADDITIONAL TIME; I TRIED TWR AGAIN WITH NO REPLY. WE WERE CLBING THROUGH ABOUT 3500' MSL AT THIS TIME. AT THIS TIME; I ELECTED TO CONTACT DEP ON 124.65 MHZ. NO REPLY ON 2 RADIOS. BACK TO TWR; NO REPLY. THEN; AFTER ANOTHER ATTEMPT TO TWR AT 4100' MSL; TWR RESPONDS AND ASKS IF I RECEIVED THE 4000' MSL RESTRICTION. I REPLIED NO; AND THAT THERE WAS NO CONTACT ON DEP FREQ. THEY SAID; 'NEVER MIND; CLB AND MAINTAIN 6000' MSL.' THIS WAS OUR INITIAL CLRNC. AFTER THIS; TWR DIRECTED US AGAIN TO GO TO 124.65. AGAIN; NO REPLY FOR DEP ON SEVERAL ATTEMPTS ON 2 DIFFERENT RADIOS. ALL THIS TIME WE ARE HEADED 180 DEGS (RWY HDG) WHEN WE ARE SUPPOSED TO BE HEADED E. AGAIN WE WENT BACK TO TWR; ADVISED THEM OF NO CONTACT. THEY ASSIGNED US 128.7 MGZ. WE THEN WERE ABLE TO RECEIVE DEP. WE ASKED DEP ABOUT 124.65 AND THEY SAID EVERYONE ELSE COULD HEAR THEM BUT US. HOWEVER; WE OVERHEARD; WHILE EAVESDROPPING ON THE PUBLISHED DEP FREQ OF 124.7; DEP CTL REQUEST RADIO CHKS ON 124.65 AND NOBODY ELSE COULD HEAR THEM EITHER. THERE ARE SEVERAL PROBS HERE IN CINCINNATI. THE FIRST IS OVERLOADED CTLRS WHO CANNOT RESPOND PROMPTLY AND WHO CAN'T RECALL WHO THEY GAVE CLRNCS TO. THIS HAS BEEN A CONSTANT STATE OF AFFAIRS FOR AT LEAST 1 YR! SECOND; A SYSTEM OF ACFT SEQUENCING WHICH IS VERY INEFFICIENT FOR BOTH ARRS AND DEPS; AND THIRDLY; A CREW OF ARROGANT CTLRS AND SUPVRS WHO ARE BEHIND BUT ASSUME IT IS EVERYBODY ELSE'S FAULT. IF CVG AND INDIANAPOLIS CENTER DON'T GET THEIR ACT TOGETHER SOON; THIS WILL BE THE SIGHT OF THE NEXT MIDAIR COLLISION.