An small aircraft pilot claims radio interference on ATCT frequency.

Attributes
ACN	317614
Time
Date	199510
Day	Thu
Local Time Of Day	0601 To 1200
Place
Locale Reference	airport : pao
State Reference	CA
Altitude	msl bound lower : 900 msl bound upper : 900
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Controlling Facilities	tower : pao
Operator	general aviation : instructional
Make Model Name	Any Unknown or Unlisted Aircraft Manufacturer
Operating Under FAR Part	Part 91
Flight Phase	descent : approach
Route In Use	approach : visual
Flight Plan	None
Person 1
Affiliation	company : air carrier
Function	flight crew : single pilot
Qualification	pilot : private
Experience	flight time last 90 days : 19 flight time total : 122 flight time type : 4
ASRS Report	317614
Events
Anomaly	aircraft equipment problem : less severe other anomaly other
Independent Detector	aircraft equipment other aircraft equipment : unspecified other flight crewa
Resolutory Action	none taken : anomaly accepted
Consequence	Other
Supplementary
Primary Problem	Aircraft
Air Traffic Incident	other

Narrative:

Significant radio interference was encountered over the antenna farm between highway 101 and pao. On several occasions in the past, I've heard morse code interference in my car radio while driving in this vicinity. This is the first time I've experienced interference in my aircraft communication. Although safety wasn't compromised this time, I feel it could be detrimental to safe flight. Callback conversation with reporter revealed the following information: the reporter is new to the katana and to aviation. He has not heard the radio interference in any other aircraft, but his experience is admittedly low. The radio in the katana is a new king, one that the reporter had not seen before. The interference is in the higher pitch range. A conversation with an ATCT controller at pao shows that they have not had any complaints of interference from the antenna farm, either in the ATCT or reported by any aircraft.

Original NASA ASRS Text

Title: AN SMA PLT CLAIMS RADIO INTERFERENCE ON ATCT FREQ.

Narrative: SIGNIFICANT RADIO INTERFERENCE WAS ENCOUNTERED OVER THE ANTENNA FARM BTWN HWY 101 AND PAO. ON SEVERAL OCCASIONS IN THE PAST, I'VE HEARD MORSE CODE INTERFERENCE IN MY CAR RADIO WHILE DRIVING IN THIS VICINITY. THIS IS THE FIRST TIME I'VE EXPERIENCED INTERFERENCE IN MY ACFT COM. ALTHOUGH SAFETY WASN'T COMPROMISED THIS TIME, I FEEL IT COULD BE DETRIMENTAL TO SAFE FLT. CALLBACK CONVERSATION WITH RPTR REVEALED THE FOLLOWING INFO: THE RPTR IS NEW TO THE KATANA AND TO AVIATION. HE HAS NOT HEARD THE RADIO INTERFERENCE IN ANY OTHER ACFT, BUT HIS EXPERIENCE IS ADMITTEDLY LOW. THE RADIO IN THE KATANA IS A NEW KING, ONE THAT THE RPTR HAD NOT SEEN BEFORE. THE INTERFERENCE IS IN THE HIGHER PITCH RANGE. A CONVERSATION WITH AN ATCT CTLR AT PAO SHOWS THAT THEY HAVE NOT HAD ANY COMPLAINTS OF INTERFERENCE FROM THE ANTENNA FARM, EITHER IN THE ATCT OR RPTED BY ANY ACFT.

Data retrieved from NASA's ASRS site as of July 2007 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.