Participants in the ARRL WD2XSH 630-meter experiment, Canadian radio amateurs, and members of the Maritime Radio Historical Society (MRHS) will participate in a special event on Sunday, November 13 (UTC) on 630 meters (the evening of Saturday, November 12, in US time zones). The event will commemorate the Berlin Treaty of 1906 that made 500 kHz the International Distress Frequency. US Part 5 Experimental licensees will operate in the 472-479 kHz band, using CW for two-way contacts and beacons with commemorative messages. There may also be some operation on 500 kHz.
“Canadian amateurs will also engage in QSOs in the 472-479 kHz band,” said ARRL 630-Meter Experiment Coordinator Fritz Raab, W1FR. “They will also participate in cross-band QSOs with amateurs operating on 160, 80, and 40 meters.”
via American Radio Relay League | Ham Radio Association and Resources http://ift.tt/2eUsxpQ