Tuesday as well :

Service Message: Mon/Tue - 20/21st April. We have planned work at our Orfordness 648AM transmitter site to bring additional solar generation online. This may require some periods of power disconnection which will result in periods of no transmission during the daytime. We will keep interruptions to a minimum. As always, thank you for your continuing support which allows us to invest in this upgrade to save power costs and greenhouse emissions in the future.