Narrative:

I was working the fremont radar position. We were using a back-up frequency; because another sector was using ours. The frequency that was assigned to the sector did not cover the entire sector. Multiple aircraft were trying to read back clrncs; and I was not able to hear them. I was informed by other pilots that the clrncs were being read back; but I could not hear them. We used to have a back-up frequency that provided coverage; but that frequency was taken away from us.

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Original NASA ASRS Text

Title: ZAU CTLR EXPRESSED CONCERN REGARDING AN AIRSPACE RADIO COVERAGE PROB WHEN UTILIZING A BACK-UP FREQ.

Narrative: I WAS WORKING THE FREMONT RADAR POS. WE WERE USING A BACK-UP FREQ; BECAUSE ANOTHER SECTOR WAS USING OURS. THE FREQ THAT WAS ASSIGNED TO THE SECTOR DID NOT COVER THE ENTIRE SECTOR. MULTIPLE ACFT WERE TRYING TO READ BACK CLRNCS; AND I WAS NOT ABLE TO HEAR THEM. I WAS INFORMED BY OTHER PLTS THAT THE CLRNCS WERE BEING READ BACK; BUT I COULD NOT HEAR THEM. WE USED TO HAVE A BACK-UP FREQ THAT PROVIDED COVERAGE; BUT THAT FREQ WAS TAKEN AWAY FROM US.

Data retrieved from NASA's ASRS site as of January 2009 and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.