“Essential engineering affecting MW Radio 5 Live [Brookmans Park] service in London and the South East 01 June 2020.
Essential engineering work is taking place on the Brookmans Park transmitter that will have periods of reduced power between 10.00 – 16.00 from 3rd June until 24th July.
Listeners’ access to Radio 5 live may be affected during this time period.
You can use our Transmitter Checker which will give you an exact view of the current status of the transmitter and any recent changes. We would recommend not re-tuning your Radio’s during this period of essential engineering.”
https://www.bbc.co.uk/reception/work-warning/engineering-works/essential-engineering-affecting-mw-radio-5-live-service-in-london
The site is home to
909 kHz BBC Radio 5 Live
1089 kHz talkSPORT
1215 kHz Absolute Radio
1458 kHz Lyca Radio
So reception of all these stations should have been affected.
Dr. Hansjoerg Biener (2020-07-26)