Welkom on the homepagine of ON4OSA!

OSA is a club with about 100 radioamateurs from Antwerp. OSA is the oldest Antwerp Radio Amateurclub baptized around 1935.  Founders were the cw operators of the Antwerp coastal navy station. The callsign was O.S.A.

The section OSA has his clubshack in Wilrijk, Antwerp (Jozef Cuyverstraat 34).
This location is used for weekly tranmissions, contests etc.

There are also many activities outside of the shack, like fielddays.

On this site, you can find out more about us, and our activities.

Clubcall’s: ON4OSA, ON9BD
Clubfrequency's: 145.425 en 144.560 MHz.

Phone: 03/827.25.44
Email: This e-mail address is being protected from spambots. You need JavaScript enabled to view it  

73's

ON4OSA