My name ist Stefan and I am born 1964 in Melle - Lower Saxony in the Northwest of Germany.
I am a passionated Radio Amateur and RV Camper.
I am licenced since 1990 in Germany as DG9BDI
Since 2016 I live in Döttingen/Switzerland and I am licenced as HB9GFX.
My Maidenhead Locator is "JN47DN"
I am married to Heike since 1994.
I have 2 more or less adult children. Jessica, born in 1995 and Julian, born in 1998.
I am a certified IT Project Manager. I love to play with data and create prototypes to later use in productive environments.
Beside the "real" Amateur Radio, I run the XLX508 Digital Amateur Radio Gateway to connect the world together.
Below you can read about my history activities and what I am doing today
After several years doing CB Radio with different setups I met a friend who asked me to do my Amateur Radio licence.
So I made my Amateur Radio Licence in 1990 and began on 2m-VHF (144Mhz) and 70cm-UHF (432Mhz) with my activities.
I started using an "Icom IC-260" and later I changed my equipment more often, to be up to date and because of changing focus on activities
Therefore I was realy dissappointed and focused back on VUSHF.
After the 6m band was opened by law to every Radio Amateur in Germany I started to have my focus on 50Mhz, the Magic Band.
I had different radio and antenna setups in these years from 1990 until 2011
This was one of my antenna setups during this time:
At least I operated from home with 6 Element "Create CL6DX" for 6m.
For 2m I had a 16 Elm. Tonna Yagi with 15 dBd gain.
For 70cm I had 4x 11 Elm. with 18dBd gain (home made).
For 23cm I had 2x 48 Elm. Yagi FX 2317 Flexa Yagi with 21,5 dBd gain.
For 13cm I had a 60Elm Yagi home made.
For the short wave bands I had a Multiband dipole G5RV (80-10m).
All was mounted on a 12m Versa Tower which was mounted sidewards to my house with a wallmount.
For 13cm I used the same IC-7000 with a Transverter LT13S and Transistor Amplifier with 30Watts out.
I had a 400W Tube Amplifier (Homemade) with 1x 4CX300 for 2m, a 250W Tube Amplifier with 1x 4CX250 (Homemade), for the SW bands a 500W Tube Amplifier with 4x GU50 and for 23cm I had a tube amplifier with 2x 2C39 about 200W out.
I was very active on the 6m (50Mhz) band and also worked many stations on the VUSHF Bands.
This was my shack somewhere in 2004 or 2005
In 2011 we deceided to move to South Germany and later to Switzerland because my employer made a nice offer for a new job position in Zurich.
In South Germany I had no chance to build up any antennas so I sold most of my equipment which I used before.
Because I wanted not to give up my hobby completely and because I met some people doing contesting I joined the Contest Station DR5T and bought an Icom IC-9100 full equipped with all Filters, DStar and 23cm module to use it during the contests with DR5T.
So I came to DStar first and after I learned how Dstar works I found an old Radio Amateur Friend Rolf - DG9YIB who influenced me realy on digital modes.
So the full "Digital Story" began.
After the movement to Switzerland there was a small chance to build up some antennas so now I have a Comet GP92 for 2m/70cm/23cm. Better that then nothing.
For 6m I have a Diamond V2000.
For SW I still have my G5RV for 80-10m which is still doing a nice job and an 17m long Endfeed antenna for 160-6m which is a bit more silent then the G5RV.
In the meantime I sold the IC9100 again and bought an Icom IC-7300 and an Icom IC-9700 for home use as well as an Icom IC-7100 with Icom AT-180 automatic antenna tuner first for home use and now for RV use.
For all digital modes I have several MMDVM Hotspots based on DF2ET MMDVM Boards with Rasperry Pi 3 and a Jumbo Spot from China.
When I met my friend DJ1QQ at the Lake Garda in Italy we talked about amplifiers and I said that I wish to have back my 4xGU50.
1/2 a year later I got some fotos from Kalle and he has build an amplifier with 2x GK71 for me which is so solid, that you can put power on it with a complete missmatched antenna and it still works fine.
The amp will not be damaged at all.
The Monster with 2x GK71 1KW out homemade by DJ1QQ:
Here now ready with new paint and new labeling.
On the picture above you can see the 30kg "monster" which deliveres all in all around 1kW out at 100W in on all SW bands.
On 80m --> 3.6Mhz about 1100 Watts until 10m --> 28Mhz about 700 Watts out , this more then enough power also with my not optimal G5RV and my Endfeed antenna to speak to world wide contacts.
I hade to change my Balun because it was not strong enough for such power. :-)
Also I had to find an Antenna Tuner, which can handle the power. For just 100W I have my internal Tuner in the IC-7300 which handles the G5RV very good.
I looked around and got a Drake MN2700 with a defect for free from an Old Man, because he is not QRV anymore .
This Tuner is already repaired also by Kalle DJ1QQ and can handle up to 2kW.
This is my todays tiny shack:
Because I am also interested in computing and all around data as an IT Product/Project Manager I started to build up a DMR+ Gateway.
Later due to changing our activities to the Brandmeister Network it was not needed any more so I started to build up the XLX508 Multimode Gateway and the YSF26446 C4FM Gateway.
Since it is running fine and all works like I expect, I have a bit free time to do other things beside my Amateur Radio Hobby.
My son and me, we are building small devices which can be used to create a conneted home.
Right now we can read out and drive/configure our "air condition", we can read the pool temperature as well as the bathroom temperature and humidty plus the won data we use to drive the air condition to get out the "wet" air from the bathroom as example after having a shower.
We can drive several lights, our 3D Printer and our heating via voice and mobil phone from inside and outside the house.
Development is onging and will be presented here when we have all "homework" of our concept done.
I am not able to built up a big antenna farm here and due to the limitations, I am doing alot of "FT8" from this QTH.
I prefer to use 80m, 40m and 6m operation.
80m and 40m is more or less working every day at every time.
6m I am monitoring and as soon as there is some interesting activity, I am also working there.
Equipment is the IC-7300 with barefoot power and my G5RW as well as my V2000 for 6m.
This is my screen arrangement:
The "Monster AMP" is only used for SSB Mode.
More to come....
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ODX on 60m with G5RV is VE1YX with 5438.6 km in FT8 with 50W
ODX on 40m with G5RV is ZL3IO with 18761.5 km in FT8 with 100W
ODX on 30m with G5RV is VK7AP with 16787.7 km in FT8 with 100W
ODX on 20m with G5RV is VK7NET with 16653.2 km in FT8 with 100W
ODX on 6m with V2000 vertical is VO1HP with 4452.6 km in FT8 with 100W
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We have our own RV (camper) since 2012.
As often as possible we do weekend trips in a radius of about 250km around our home.
We realy like the area around the Lago Maggiore, and the village of Cannobio.
In our holiday seasons we travel quite often to Italy to the Adria Area.
Our longest trip was Ireland.
Most of the "extras" I built into the camper by myself.
We have an inverter for 220V with 3000Watts output so we can run our coffee mashine without land electricity and all the other stuff runs on 12V or on Propane Gas.
Also we have a solar panel which gives us back most of the power we used if we are a bit careful with the consume of the battery power.
We are quite well equipped and we can stay complete "autark" for about a week until we need to pick up some fresh water and until we have to dispose of the gray water.
We have a real shower in the RV with a real door to not flood the hole bathroom as well as a 120 liters cooler and a 40 liters icebox. Enough space to store fresh food and drinks for some days.
If there is no space on a RV parking space we can survive also "wilde".
In many cases we navigate to small cheap RV parkings close to the sea. We already found some nice places direct to the Adria beach like here: Fossacesia, Abruzzo. We realy love this place and will go there again as soon as we will go this direction.
We realy like this place, not luxuary but all what is needed is there and very cheap. 12€ per 24h including electricity as much as you need. Sometimes the electricity wiring is a bit adventurous but it worked all the time.
more to come...
73 de HB9GFX/DG9BDI StefanBack to top of page