The incidence of Secondary Surveillance Radar (SSR) Mode C pressure altitude encoding faults of the type caused by stuck/shorted C bits has been investigated amongst aircraft in UK airspace transmitting the SSR Mode A Conspicuity Codes 4321 and 4322. Combining a recently measured frequency for similar Mode C faults among non-Conspicuity Code aircraft (0.44%) with presently measured frequencies of SSR plots and Mode C faults for Conspicuity Code aircraft leads to estimates of the overall frequency for stuck/shorted C bit faults ranging from 0.49% for the airspace covered by the Civil Aviation Authority Heathrow Tower radar to 0.70% for similar equipment at Debden. Great Britain. (FR)
Fine Resolution Errors in Secondary Surveillance Radar Altitude Reporting amongst Aircraft Transmitting the Conspicuity Codes 4321 and 4322
1988
12 pages
Report
No indication
English
DataCite | 1928
DataCite | 1928