We went to Watchtree Nature Reserve on Sunday. I took this picture of the Caldbeck Transmitter through my binoculars.
I looked up the relevant details. Apparently it is 337 metres high, making it the third tallest structure in the UK. Wikipedia has details of the frequencies at which it broadcasts http://en.wikipedia.org/wiki/Caldbeck_transmitting_station Another site claims that the electromagnetic waves are horizontally polarised. I need to be more inquisitive about the local Physics features!
