>Just curious.... > >What kind of an antenna is used to broadcast 60Khz ? > >That's a wavelength of almost 5 kilometers!, isn't it? > >Dan I remember seeing an article on an antenna for working at 21kHz. It was about 5 miles long, and they decided to lay it across the ice in Antarctica. I cannot remember what it was being used for, it may have been research into radio waves received from deep space or something similar, but I remember thinking at the time that ice was probably as good an insulation material they were going to find to support it without heaps of lamp post type poles for miles. There is also a time standard transmitter at Rugby in the UK. I am pretty sure it also works at 60kHz. You can see an aerial farm when driving up the M1 motorway (freeway to you Americans) that looks very similar to what has already been described. I believe there is another similar transmitter in Europe, I think Germany. -- http://www.piclist.com#nomail Going offline? Don't AutoReply us! email listserv@mitvma.mit.edu with SET PICList DIGEST in the body