Thought you might be interested in seeing this. Don’t rely on your GPS signal if you’re within 50 miles of Sennybridge at the beginning of April …
The Ministry of Defence conduct occasional tests on military systems which may result in some loss of service to civilian users of the Global Positioning System (GPS) including in-car navigation devices and networks which rely on GPS signals.
— Read on www.ofcom.org.uk/spectrum/information/gps-jamming-exercises
… for Cardiff u3a