VHF GND CTL XMITTING FREQ; FOR THE S SIDE OF THE ARPT ONLY; DID NOT SEEM TO BE HEARD BY THE CTLR. THE CAPT WENT BEYOND HIS CLRNC LIMIT IN AN EFFORT TO ESTABLISH COMS. THE N COMPLEX FROM WHICH HE HAD JUST COME HAD HEARD THE RPTR OK.

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LANDED RWY 24R; HELD SHORT RWY 24L ON TXWY AA. CLRED TO CROSS RWY 24L AND CONTACT GND ON TXWY AA. TAXIING S ON TXWY AA; N SIDE GND (121.65) INSTRUCTED US TO CONTACT S SIDE GND (121.75) AT CHK POINT 3. S GND; HOWEVER; WOULD NOT ACKNOWLEDGE ANY OF OUR CALLS; ALTHOUGH WE COULD HEAR ALL ONGOING COMS OF GND WITH OTHER ACFT. REACHING THE S END OF TXWY AA; SHORT OF TXWY C; GND WOULD STILL NOT ANSWER OUR CALLS. MY EXPERIENCE TAXIING THIS ROUTING HAS ALWAYS BEEN TO USE TXWY B TO OUR GATES. SEEING NO CONFLICTING TFC ON TXWY B OR TXWY C; I TURNED E ON TXWY B TO PUT THE ACFT WITHIN LINE OF SIGHT OF THE TWR CAB IN HOPES OF RAISING THEM ON THE RADIO. GND CTLR NOW ACKNOWLEDGED MY POS; BUT SAID MY XMISSION WAS TOTALLY UNREADABLE AND TO STOP WHERE I WAS. NOW STOPPED ON TXWY B; ABOUT 1/4 OF THE WAY FROM TXWY AA TO GATE; SHE WOULD AGAIN ACKNOWLEDGE NO FURTHER XMISSIONS. I CALLED N GND (121.65) AND INFORMED HIM OF MY POS AND PROB. HE SAID TO CALL HER BACK. AFTER MAKING US SIT IDLE FOR 5 MINS; SHE SUDDENLY UNDERSTOOD OUR RADIO JUST FINE AND GAVE US CLRNC ALONG TXWY B IN SHORT ('UP TO AND HOLD SHORT OF...') SEGMENTS -- EVEN THOUGH THERE WAS NO CONFLICTING TFC TO GIVE WAY TO. IN RETROSPECT; THE N GND MAY HAVE INTENDED TO SEND US VIA THE S RTE (VERSUS BRIDGE RTE) AND I SHOULD NOT HAVE CROSSED TXWY E UNTIL RECEIPT OF HIS MORE SPECIFIC INSTRUCTIONS. THE TWR'S INSTRUCTION TO CALL GND ON TXWY AA LED ME TO BELIEVE THEY WANTED ME TO CONTINUE S ON TXWY AA; AND THUS CLR THE RWY 24L TURNOFF. AS FOR THE S SIDE; I KNOW I SHOULD STAY ON TXWY AA SHORT OF TXWY C UNTIL RECEIVING FURTHER CLRNC FROM GND; BUT HER REFUSAL TO ANSWER ANY OF OUR CALLS GAVE ME THE IMPRESSION WE WERE NOT BEING HEARD FROM THIS POS. WITH NO CONFLICT IN SIGHT; IT SEEMED PRUDENT TO REPOSITION THE ACFT TO ESTABLISH RADIO CONTACT. NOW ON TXWY B; SHE CLAIMED SHE COULD NOT UNDERSTAND MY XMISSIONS; EVEN WHEN WITHIN SIGHT OF THE TWR CAB.