adf - ndb inoperative

the adf and ndb tuning would not operate after switching on. somehow the signal isn't
recognized. please advise.
recognized. please advise.
Flight Simulator and other chat
https://forums.simviation.com/phpBB3/
https://forums.simviation.com/phpBB3/viewtopic.php?f=20&t=56027
[Radios] ...
Adf.1=1
[Radios]
// Radio Type=availiable, standby frequency, has glide slope
Audio.1=1
Com.1=1, 1
Com.2=1, 1
Nav.1=1, 1, 1
Nav.2=1, 1, 0
Adf.1=1
Transponder.1=1
Marker.1=1