New to Mooneys and fresh PPL, what does this switch do ?

[Souhail]

Hello,

New to the Forum, Mooneys and with a fresh PPL, I can't find what this "ENCODER" ON/OFF button does on the POH (Check attached picture).

Thank you.

[Souhail]

Thank you for your quick reply

Here's the transponder I have. I guess the button is not doing anything compatible with modern transponders right ?

[Souhail]

Thank you!!

[Elijah]

That transponder requires an altitude encoder so I'm sure you still have one in the panel somewhere. I also think those transponders can display the altitude the encoder is sending, I'd turn off the encoder switch, power everything up and see if the transponder still displays correct pressure altitude. Then you'll know if that switch is doing anything or not :-) 

[Souhail]

1 minute ago, Elijah said:

That transponder requires an altitude encoder so I'm sure you still have one in the panel somewhere. I also think those transponders can display the altitude the encoder is sending, I'd turn off the encoder switch, power everything up and see if the transponder still displays correct pressure altitude. Then you'll know if that switch is doing anything or not :-) 

Thank you! I'll give it a try to check.