Artikelrobot
Well-Known Member
500 kHz was the frequency used by the RMS Titanic on April 15, 1912. There is a growing move amongst maritime groups world wide to preserve 500 kHz as a memorial frequency
http://www.southgatearc.org/news/april2006/500khz_memorial.htm
http://www.southgatearc.org/news/april2006/500khz_memorial.htm