OurAirports has records for 7 different navaids with the identifier "FR". Please select the one you'd like to view.
Canada
274 KHz (FR ..-. .-.)
..-. .-.
China
312 KHz (FR ..-. .-.)
Germany
297 KHz (FR ..-. .-.)
Finland
375 KHz (FR ..-. .-.)
Liberia
263 KHz (FR ..-. .-.)
Mauritania
408 KHz (FR ..-. .-.)
United States
407 KHz (FR ..-. .-.)