BBC Radio Leicester high point in Charnwood Forest, part of the National Forest. Since 6 December 2002, the station's DAB signal has come from the NOW Digital East Midlands (NDEM) Leicester 11B multiplex, which comes from Copt Oak and Houghton on the Hill. The Waltham transmitter and Houghton-on-the-Hill have a Digital One multiplex and Waltham has a BBC National DAB multiplex. The Copt Oak transmitter also broadcasts Gem 106. The majority of the station's programming is produced and broadcast from Leicester. During off-peak hours, BBC Radio Leicester also carries regional programming for the Midlands and East Midlands regions, produced from sister stations BBC
Time signal a common hazard, the emergency sirens are tested regularly at a specified time (say, noon each Saturday); while not primarily intended to mark the time, local people often check their watches when they hear this signal. In many non-seafaring communities, loud factory whistles served as public time signals before radio made them obsolete. Sometimes, the tradition of a factory whistle becomes so deeply entrenched in a community that the whistle is maintained long after its original function as a time keeper became obsolete. For example the University of Iowa's power plant whistle has been reinstated several times by popular demand