[rvmv]

setting up my transponder and need to enter a "mode s identifier (octal)" code. where do you get one? Thanks

 

[lr172]

The FAA registry website provides the assigned hex and octal codes for each registered aircraft.

Larry

 

[DaleB]

https://registry.faa.gov/aircraftinquiry/NNum_Inquiry.aspx

 

[rvmv]

Thank you!