METHOD FOR MEASURING IN OPERATING OPERATION CERTAIN CHARACTERISTICS OF THE ON-BOARD TRANSPONDER USING SECONDARY RADAR

摘要

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