668 kHz — 0.668 MHz

Name: FreqBuddy radio frequency database
License: https://freqbuddy.com/

MF / medium wave. 1 station listed.

Stations listed on 668 kHz
Station	Country	Location	Power (kW)	Schedule (UTC)	Language
MW Station RU16	Russia	Regional Russia	679.800	0600-2400	Local