TWR SENT ANOTHER ACFT AROUND WHILE THE FLC OF A NORTH AMERICAN SABRELINER MODEL 65 WAS STILL HOLDING IN POS FOR TKOF. ALL COM XMISSIONS HAD GONE WELL UNTIL HOLDING IN POS CAUSING FLC TO BELIEVE THAT THEIR ACFT COM SYS WAS NOT RESPONDING IN THE ARPT HOLD LOCATION. THEREFORE; IT WAS NOT KNOWN IF THE ACFT EQUIP; ATC EQUIP OR THE ARPT LOCATION WAS THE PROB.

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THE FIRST 1000 FT OF RWY 28L WERE CLOSED SO ALL ACFT WERE DEPARTING W FROM TXWY F (MARKED ON APCH PLATE). THE TWR WAS SPACING ACFT PERFECTLY. 1 ARR; 1 DEP; 1 ARR; ETC. ALL XMISSIONS WERE NORMAL. AN ACFT LANDED AND WE WERE CLRED INTO POS AND HOLD. WE WERE ADVISED ABOUT TFC ON FINAL AND SAW IT ON OUR TCASII. WE WERE IN POS WITH CHKLIST COMPLETED READY TO GO BUT NO CLRNC FROM THE TWR. WE COULD SEE THE TCASII TARGET APCHING THE RWY. WE XMITTED WE WERE READY TO GO. I SWITCHED THE #2 RADIO TO TWR FREQ AND XMITTED (ON #1 RADIO) 'DO YOU WANT US TO EXIT THE RWY?' AT THAT TIME; THE ACR Y AIRBUS ANNOUNCED IT WAS GOING AROUND. THEN; A VERY SCRATCHY XMISSION CAME FROM THE TWR 'DO YOU READ THE TWR ON THE BACKUP FREQ?' THE TWR ASKED THE OTHER ACFT WAITING FOR TKOF IF THEY HAD HEARD HIS REPEATED TKOF CLRNCS ON THE NORMAL FREQ; WHICH THEY ALL REPLIED THEY HAD. OBVIOUSLY THERE WAS A RADIO DEAD SPOT AT THE INTXN OF RWY 28L AND TXWY F. CMH TWR ROUTINELY DEPARTS ACFT FROM THIS INTXN -- TO MY KNOWLEDGE WITH NO PROB. IT IS POSSIBLE THAT OUR ACFT HAS A UNIQUE POSITIONING OF RADIO ANTENNA WHICH CAUSED US TO NOT HEAR THE TWR. I AM UNAWARE IF ANYONE HEARD OUR 2 XMISSIONS ON THE RWY. THE TWR CTLR AND AIRBUS CREW ACTED SAFELY AND PROFESSIONALLY. OUR NEXT TIME IN CMH I WILL REQUEST A RADIO TEST AT THAT SAME INTXN. THANK YOU FOR HAVING THIS PROGRAM. IT IS VERY IMPORTANT.