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Old 16th Mar 2024, 17:38
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Aperture
 
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Question on transponder / MH370

Hi everyone,

After watching an interesting video on the MH370 flight that disappeared, I have a simple general question.

1) When the transponder on the XPNDR/TCAS panel is set to STBY, does it mean ATC can't see you on his screen and you fly undetected, the only way to detect you being primary radar pulses ? Or you can still be detected but without altitude, speed etc...
2) It leads to my second question regarding flight MH370: did the flight do what I said in 1), or did they do other things to remain undetected, like tripping CB's, or disconnecting from ACARS ?

Thank you for your answers
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