Hi There, I saw this today, Jan 2025 post, about 198khz closedown... Says...
"Energy UK, the trade association for energy suppliers, is now supporting the BBC and regulator Ofgem,
with plans to turn off the service on June 30, 2025"
https://www.msn.com/en-gb/money/other/thousands-of-brits-could-be-forced-to-have-smart-meters-due-to-bbc-change/ar-AA1xmDuQ?ocid=mailsignout&pc

I screwed up my links in above post...
It should have been this one, over Lies about Radio Teleswitch Switch (RTS) meters
Scroll down to Post #4.... Seems to say, that after 198khz ends, RTS meters will Still switch to Night Rate
using the meters built in clock timing...See also Post #20....
https://www.railforums.co.uk/threads/smart-meters-after-switch-off-of-bbc-radio-long-wave.275535/

Am I reading this wrong?...anyone with insider know how? about Radio Teleswitch (RTS) meters
Lots of other pages on this RailUK forum, worth a look

Rod Watts