<< >> NASA ASRS Report 911158, September 2010

SR22 pilot reports interference on the coq AWOS frequency at 13000 feet with pwc AWOS which shares the same frequency.

Attributes
ACN	911158
Time
Date	201009
Local Time Of Day	1201-1800
Place
Locale Reference	COQ.Airport
State Reference	MN
Environment
Flight Conditions	IMC
Light	Daylight
Aircraft 1
Make Model Name	SR22
Operating Under FAR Part	Part 91
Flight Phase	Descent
Route In Use	Direct
Flight Plan	IFR
Person 1
Function	Single Pilot
Qualification	Flight Crew Air Transport Pilot (ATP) Flight Crew Multiengine Flight Crew Instrument Flight Crew Flight Instructor
Experience	Flight Crew Last 90 Days 57 Flight Crew Total 5134 Flight Crew Type 1600
Events
Anomaly	No Specific Anomaly Occurred All Types

Narrative:

Inbound from the west to coq at and descending from 13000' IFR; I could not pick up the coq AWOS due to a conflicting ASOS at pwc on the same frequency (118.525) until I was very close in to coq. In the considerable distance in which these transmitters conflict; I initially put in the wrong altimeter setting (pwc's) due to the garbled transmission. These airports are only 77 NM apart and should not share the same frequency for automated weather.

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Original NASA ASRS Text

Title: SR22 pilot reports interference on the COQ AWOS frequency at 13000 feet with PWC AWOS which shares the same frequency.

Narrative: Inbound from the west to COQ at and descending from 13000' IFR; I could not pick up the COQ AWOS due to a conflicting ASOS at PWC on the same frequency (118.525) until I was very close in to COQ. In the considerable distance in which these transmitters conflict; I initially put in the wrong altimeter setting (PWC's) due to the garbled transmission. These airports are only 77 NM apart and should not share the same frequency for automated weather.

Data retrieved from NASA's ASRS site as of April 2012 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.