This year, the Finnish Amateur Radio League SRAL celebrates the 100th anniversary of its founding. The birthday is set at 15th September 1921 which marks the day when the constitutive meeting was held.

From today till 23rd December (for 100 days) all OH and OH0 stations may use the OF prefix to honor the centennial of their society.

On the occasion, the President of the Republic of Finland Sauli Niinistö has congratulated all Finnish radio amateurs for their role e.g. in developing communications and radio technology.