SMA MAKES TURN TO RETURN LAND INTO THE PATH OF DEPARTING JET.

Narrative

SEP/SAT/94 I WAS PERFORMING A ROUTINE PLEASURE TRAINING VFR FLT TO MAINTAIN MY PROFICIENCY IN A CESSNA C172/U. WX WAS VMC 15 MI/2500 SCATTERED. I TOOK THE ATIS; ASKED FORT LAUDERDALE CLASS C CLRNC DELIVERY FOR A VFR FLT WBOUND SPECIFYING A NW DEP TO AVOID MIA CLASS B AIRSPACE AND RADIOED FOR TAXI CLRNC TO TAXI RWY 9R; AT THIS POINT IN TIME TAXIING DOWN TO RWY 9R A STRONG WHISTLING ELECTRICAL INTERFERENCE WAS BECOMING INTENSIVELY DISTURBING IN MY HEADSETS. I CONCLUDED ON THE POOR QUALITY OF MY HEADSETS (NO VOLUME MONITORING/SENSITIVE) ALTHOUGH I HAD NEVER EXPERIENCED THIS DURING MY IFR TRAINING ON THE SAME AIRPLANE AND OUT OF THE SAME ARPT AND BELIEVED THE OCCURRENCE TO BE A TEMPORARY SIT DOWN THE TXWY ALSO RESULTING FROM LCL STRONG ANTENNA EMISSIONS IN THIS PART OF THE ARPT. AT RWY 9R I RAN UP THE ENGS AND NOTICED THE INTERFERENCE WAS GETTING WORSE WITH REVVED ENG. I HAD 3 TFC WAITING BEHIND ME AND WAS CLRED PROMPTLY FOR TKOF ALTHOUGH THE RADIO RECEPTION WAS WORRYING ME. I DECIDED ONCE IN THE AIR THE SIT WOULD BE BETTER. THE 2 RWYS 9R AND 9L WERE ACTIVE WITH SEPARATE FREQS. I TOOK OFF RWY HDG 9R. RADIO INTERFERENCE AT FULL PWR WAS UNBEARABLE. CLBING FOR ABOUT A 1 1/2 MI TO ABOUT 650 FT WHERE I INITIATED A L TURN STILL CLBING UP TO ABOUT 900 FT WHERE I WAS THEN 1/3 OF THE DISTANCE BTWN THE 2 RWYS (SEPARATED BY 5500 FT) HDG NORTH. I WATCHED FOR TFC AND SAW A JET ROTATING AT V2 OFF OF RWY 9L WHEELS STILL ON THE GND. ALTHOUGH I WAS 7500 FT HORIZ AWAY (A MI AND A HALF) AT 900 FT AGL AND STILL CLBING ABOVE THE EXTENDED FLL ARPT; HIS ROTATION AND ANGLE OF CLB OFF THE RWY MADE ME IMMEDIATELY REACT TO MAKE A STEEP 180 DEG TURN TO THE R FOR A S TFC TO S DOWNWIND RWY 9R. HALFWAY DURING MY TURN; TWR FOR RWY 9R CONFIRMED S TFC R TURN WHICH I WAS ALREADY COMPLYING WITH. (LATER ON GND AFTER A COMPLAINT FROM THE JET; THE TWR INFORMED ME TO HAVE INSTRUCTED ME A SOUTHERLY TURN AT TKOF WHICH I AM UNABLE TO CONFIRM AS THE INTERFERENCE WAS SO BAD AT THAT TIME.) DOWNWIND RWY 9R THE ELECTRICAL INTERFERENCE THERE AGAIN BECAME OVERLY DISTURBING IN THIS PART OF THE ARPT; MY HEAD WAS LIKE A PUMPKIN. I RPTED TO THE TWR 'READING 1' AND COMING BACK FOR A LNDG TO DISCONTINUE MY FLT. MY LEARNING FROM THIS EXPERIENCE WAS TO DECIDE TO BUY HIGHER QUALITY HEADSETS AND TO ABORT TKOF ON THE RWY IN THE FUTURE IN CASE OF ANY BAD RADIO RECEPTION IN A CTLED AIRSPACE AND TO ASK CTLRS TO REPEAT SYSTEMATICALLY IF UNINTELLIGIBLE.