I can tell you from personal experience there are THOUSANDS of locations in Scotland where there is zero usable coverage - not even a usable mobile signal to make a phone call, let alone 3G data. 4G? not a chance. 5G - pipedream.
Anybody who expects to be able to use GPS on a mobile phone whilst walking in the Cairngorms needs to be prepared for the genuine feature of Scottish Highland weather - four seasons in a day. Its not a joking matter, people die for lack of adequate preparation and clothing.
You don't even need to leave the Central Belt to have no mobile signal, despite tens of thousands of people living nearby and passing through on major roads.
Since half of Scotland is already plastered in sprouting white wind turbines. camouflaging mobile phone masts would be easier if they are just as tall as the masts and painted white. There's a mast near the A9 / M9 roundabout near Dunblane that looks like a tree - so its NOT hard.
Biting the hand that feeds IT
