ZTL ARTCC RADAR CTLR RPTS FACILITY HAS BEEN HAVING VARIOUS XMITTER AND RECEIVER PROBS FOR MONTHS.

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I WORK AT ZTL; AREA 6. OUR NORMAL W DEP FREQ HAS HAD A PROB FOR MONTHS NOW. THE PLTS DEPARTING ATLANTA SAY IT SOUNDS LIKE AN OPEN MIKE WITH A LOUD SQUEAL. THE REGIONAL OFFICE RPTS THAT AFTER INVESTIGATION; THEY 'THINK' IT'S A PAGER TWR INTERFERENCE. WHAT ARE THEY DOING ABOUT IT? WE DON'T KNOW -- OBVIOUSLY NOTHING! OUR BACK-UP FREQ 135.0 HAS STARTED HAVING PROBS ALSO. OH; W DEP'S NORMAL IS 134.95. SO; ON THIS EVENING; THE PLTS WERE COMPLAINING ABOUT THE FREQ. I WENT TO THE BACK-UP. I HAD THE NORMAL FREQ MONITORED ALSO. I HAD SEVERAL ACFT ON 135.0 AND IT WENT DEAD. THE SUPVR CALLED AND FOUND OUT THAT SOMEONE WAS AT THE SITE WORKING ON IT; AND NO ONE TOLD US IT SHOULD HAVE BEEN RELEASED. THEN; I HAD NORDO ACFT ALL IN MY SECTOR. LUCKILY THIS DID NOT HAPPEN WHEN WE WERE BUSIER. THE NORMAL (134.95) NEEDS TO BE FIXED. WHEN IT IS ALL WE HAVE; WE HAVE EXCESS COMPLAINTS FROM PLTS TYING UP THE FREQ AND/OR THEY RETURN TO ATL APCH WITHOUT CHKING ON BECAUSE THEY THINK THERE IS A HOT MIKE. THERE WILL BE AN INCIDENT IF THIS PROB IS NOT CORRECTED. IT IS RPTED DAILY; I AM CERTAIN; TO NO AVAIL.