The use of the 900MHz spectrum for LTE services could compromise rail safety, claimed the U.K. chairman of the Rail Freight Group, Lord Berkeley. He said the planned use of the 900MHz band was 'quite close' to the frequency being used for the introduction of train driver communications. The warning was given as the U.K. government pushed through an Ofcom directive that forms the first stage of the planned auction of LTE spectrum intended for 2013. Article