Signal-to-Noise Ratio Conditions at Amchitka, Alaska

Details

• Creators:
  Erikson, Robert
• Corporate Creators:
  United States. Department of Transportation. Federal Aviation Administration. Technical Center
• Subject/TRT Terms:
  • Signal to noise ratio
  • Instrument flying
  • Aircraft pilotage
  • Approach
• Publication/ Report Number:
  CT-140-88-1
• Resource Type:
  Tech Report
• Geographical Coverage:
  United States ; Alaska
• Corporate Publisher:
  United States. Department of Transportation. Federal Aviation Administration. William J. Hughes Technical Center
• Description:
  The signal-to-noise-ratio (SNR) out-of-tolerance condition at Amchitka was analyzed. The issue was raised in a letter sent to National Resource Specialist, ANM-104N by Lyle Wink of AVN-240. The letter states that AVN-240 is concerned about certifying the approach into Amchitka, because the SNR may be below the -6 decibel (dB) limit for Loran C station Port Clarence during certain times of the day. AVN-240 has asked AWS-100 for a waiver on the SNR issue so that they can authorize the issuance of the special instrument approach procedure. In addition, they have requested a new certification tolerance for SNR which will be provided to Anchorage FIFO for future periodic inspections.
• Format:
  PDF
• Download URL:
  https://rosap.ntl.bts.gov/view/dot/93719/dot_93719_DS1.pdf
• File Type:
  [PDF - 2.91 MB]
• Collection(s):
  FAA William J. Hughes Technical Center for Advanced Aerospace
• Main Document Checksum:
  urn:sha-512:f96ac117000817812e7431b0bb0478ad018a109efb06184d6b93963700b2f42555b39476ce2389c3af39bd316a7e38e72b91170731be504f5fee4b48d1dae0c4