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Home > Exam Questions > ATPL - Airline Transport Pilot license > Air Law > When 'Secondary Radar' is used, an aircraft may be identified by one of the following procedures:

203 - ATPL - When 'Secondary Radar' is used, an aircraft may be identified by one of the following procedures:

Question 203 - Air Law - ATPL - Airline Transport Pilot license

To request pilot to set transponder on position 'OFF'.

To request pilot to set transponder on position 'ON'.

To request pilot to switch from 'ON' to 'STDBY'.

Observation of compliance with an instruction to operate transponder from 'ON' to 'STBY' and back to 'ON'.

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