Well I’ve just spent 45mins not finding the source of the QRM but finding any kind of mobile signal! However, a lifetime of tinkering with wireless means if there is a signal I will find it. My phone is currently taped to a long garden pole and that is poked up through the shrubbery here. We went from emergency only service to 14mbps 4g… a result in anyone’s books as the mobile provider and government signal finder websites suggest making any calls around here is very unlikely. Phone is set to mobile wifi hotspot and I’m sat on the patio with some viable internet and a bottle of Glen Livet. 
I do think that Mike is trying to win a “Finbarr Saunders” award with his anecdotes.