Warnings of Freeview TV reception problems now extended into June as high pressure is likely to cause some problems in Eastern England and Northern Ireland.
Freeview had issued a warning last week, advising anyone who suddenly lost Freeview channels not to retune.
With high pressure dominating, there’s an increased risk of TV reception issues in Eastern England and Northern Ireland, in addition to the previously affected parts of Southern England. And Freeview has refreshed its warning with little sign of any big change in the weather this week.
The BBC has published a video presented by BBC Weather’s Matt Taylor on why fine weather can cause TV reception problems.
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The effects of tropospheric ducting on TV signals can result in some viewers temporarily receiving continental TV channels. Instances of interference have grown as the number of frequencies available for terrestrial TV broadcasts has reduced.
The issue also affects terrestrial radio (FM/DAB), meaning listeners may experience signal drop-outs or reception of distant stations.
Over the weekend, the atmospheric conditions resulted in reports among radio hobbyists of BBC Radio 1 being received on FM as far south as the Mediterranean.
The current atmospheric weather conditions also affects mobile users, increasing the risk of inadvertent roaming.
Marc Thornham