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Many fellow amateur radio operators happen to know me from my website The site features a collection of tools for on-line HF propagation prediction. There are also a couple of articles on novel antenna ideas, among which the six-band HF Center-Loaded Off-Center Fed Dipole (CL-OCFD). I am currently redesigning the site and will soon add more material.

Amateur radio started for me at the age of six when I built my first crystal radio. My dad, an electrophysiologist, had bought himself a Tandy Radio Shack 120-in-1 experiments kit, but I had more time to play with it. Child of the seventies, I also got peripherally influenced by the Citizen Band rage, watching The Dukes of Hazard on TV. At that same age, my dad took me to the shack of a physician colleague who had become a ham whilst working in then Belgian Congo. That same year, I also visited once my local club, but this was at that age off-limits since the club did double duty as a pub.

At the age of 12, I eventually became a club member. After failing the test once at age 15, I got my CEPT class II (100W VHF and above) ticket in 1989 at the age of 16 (call sign ON1ASP). In 1991, I made a QSO with Space Shuttle Atlantis.

My CEPT class I ticket came in 1994 after completing a 15wpm Morse code test (call sign ON4BAA, later ON4AA). From 1995 to 1996 I was active as G/ON4AA from the University of Hull in the UK. I started my web site in 2001. Now, AD 2013, I started moving it gradually to its third version. From 2003 to 2004, I was active as HB9DWU on the low bands (1kW RTTY and SSB on an indoor dipole) from the historic city centre of Lucerne, Switzerland. Due to many moves, family matters, housing limitations and illness, I had to limit my HF activity to club contesting at OT5A. In the mean time, I taught myself computing on GNU/Linux. Now, settled in the historic city centre of Hasselt, Belgium, I started working at my come-back on HF.

I was present at the Area 51 birth of ham.stackexchange and actively promoted this site in the printed press, including ARRL QST. I am also quite active on tex.stackexchange.

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