GPS Jamming Trials. GPS jamming trials over the next couple of months have been announced, as follows: 5-9 March, Spadeadam potentially affecting NW England, SW Scotland, and as far south SE as Leeming (see AIC Pink 010/2012); 26-30 March, Stanford potentially affecting much of E Anglia and parts of the Lincolnshire coast; 16-27 April, Faraid Head and Loch Ewe with the potential of affecting flights in large areas of Scotland (see AIC Pink 008/2012). All AIS documents are available via http://www.nats-uk.ead-it.com/public/index.php.html