ON4CAS at your service
ARRL
I'm an official ARRL Checkpoint
Islands On The Air
I'm the IOTA Checkpoint for the Benelux countries
CQ MAGAZINE
I'm a CQ Magazine authorized card checker
Please note that Belgian HAMs MUST be a member of the UBA if they want me to check their cards
![Egbert Hertsen | ON4CASl Egbert Hertsen | ON4CAS](https://www.on4cas.be/wp-content/uploads/2023/03/uba-small.gif)
Union of Belgian Amateur Radio
Belgian IARU Society
- Board Member for more than ten years
- UBA treasurer
- UBA HF-Manager