Hi,
I am trying to determine whether there may be more than one active siren in Carlisle, Cumbria. Currently I only know of one single siren in Carlisle located at the Kingmoor Park industrial estate, but I have heard reports of sirens being heard regularly in the city from locations that I would have thought too far away from this specific siren for it to be the one being heard. The distance from the Kingmoor siren to one of the reported hearing locations is roughly 2.6 miles; would this siren still be audible? The surrounding area consists of hilly terrain with quite a lot of urban housing.