OS ham radio prefix in Belgium
Since April 18 Belgian radio amateurs have been using ‘OS’ as the prefix instead of the usual ‘ON’
This was announced by the Belgian Institute for Postal Services and Telecommunications (BIPT). It means that all radio amateurs and clubs have a special call signal they can use until December 12, 2021.
BIPT explains that this year there are two different special radio events to celebrate:
• International Radio Amateur Day which was on April 18
• the first transatlantic radio broadcast on December 12. This year it is 120 years since Guglielmo Marconi received the first radio signal across the Atlantic
Source SSA: https://tinyurl.com/IARU-Sweden
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