Non-directional beacons (NDBs) transmit within which frequency band?

Question

Question PPL(A) - Private Pilot License - Navigation

QuizVDS · Accepted Answer

Low frequency (LF) and medium frequency (MF)

QuizVDS · Answer

Very low frequency (VLF) and low frequency (LF)

QuizVDS · Answer

High frequency (HF)

QuizVDS · Answer

Very high frequency (VHF)

Id 108 - PPL(A) EN - Non-directional beacons (NDBs) transmit within which frequency band?