And still my mother, who's never been to sea in her life, listens daily to the shipping forecast at 6.00 pm on the Light program! I've never understood why...!
The old GEC transistor radio, bought in 1958, is still used every day for this purpose. The dial says 1500M 'Light', so R4 198Khz cuts no ice with mum: she still listens in metres
All the best
Nick