The UBA section RSX and the French radioclub F5KFL are planning a Belgian-French expedition from 26 July 2015 until 02 August 2015 to commemorate their 22 years of friendship.

This expedition will be the 11th gathering and takes place in Saint Sauveur in the province of Hainaut (West Belgium). About 20 Belgian and French operators will be QRV on all HF and VHF bands with several stations in SSB, CW and digital modes with the special callsign OS22F. OS: special prefix, 22: 22 years we are twin radioclubs, F: “Friends”. Our QTH is located on a reference ON Flora Fauna: ONFF - 218 "Natural Park of the Hills" located in the "Pays des Collines"