METHOD FOR MEASURING THE OPERATIONAL FUNCTIONING OF CERTAIN CHARACTERISTICS OF AN AIRBORNE TRANSPONDER USING SECONDARY RADAR

摘要

The invention relates to an operational phase test method according to the invention comprising three distinct steps, a first step (11) using transponder responses to Mode S interrogations transmitted in operational mode by the secondary radar to perform the measurement of the transponder power, and the measurement of the average response rate to mode S interrogations emitted by the radar for it; a second step (12) which measures the sensitivity of the transponder and a third step (13) which carries out the test of its maximum response rate. The second and third steps are performed by modifying the operating parameters of the radar so that the additional interrogations required for the measurement can be performed during the time interval following the last operational interrogation during which the aircraft remains localized. in the main lobe lane Sum of the radar antenna.