Special Event: GB500KCS

28/10/06 13:31 Filed in: Special Activity
On 3 November 1906 the Berlin International Wireless Telegraphy Convention agreement established 500kc/s as the maritime calling and distress frequency and SOS as the distress signal. To mark this centenary the Radio Officers' Association will be on air using the callsign GB500KCS on 3-4 November. QSL via operator's instructions. This special event will form the launch of the Radio Officers' Association campaign for 500 kHz to be recognised internationally as a 'heritage' frequency.