The UK’s largest mobile operator, BT-owned EE, has switched on its 800 MHz spectrum to cover 5,000 square kilometers of LTE ‘notspots’. The operator said indoor penetration was improved for about 500,000 homes in parts of the counties of Shropshire, Somerset, Snowdonia, Oban, Glasgow, Berkshire and Derbyshire. It says a further 3,000 sites will be bolstered by low frequency spectrum before the end of this year. EE’s LTE network currently runs in 1.8 GHz, while its three rivals already use 800 MHz. EE gained a headstart over the other MNOs when it was allowed by regulator Ofcom to refarm its 1.8 GHz GSM spectrum for LTE, provided it divested about 20% of the spectrum to 3UK. It started offering LTE…