Hi, I'm Arthur from Berlin. I was born in Moers - a small city in Germany near Duesseldorf. I'm in Berlin since 1971 . I have studied electronics and economics and finished with dipl. engineer. I made my hamradio license 1982. My hobbies are hamradio, music - production also, watersport, fishing and computering, mathematic/physic and much more...... I worked at the IBM company and finished my work end of year 2000.
Please have a look on my homepages: Please try the first address,
Here you can find the calculation programs in German: http://www.dl7ahw.darc.de/berechnen00.htm
and here the programs in English: http://www.dl7ahw.darc.de/berechnen00e.htm
A small film in the near of Berlin from antennaday 2011 : https://www.youtube.com/watch?v=nhds54td95c
Now a small film from DO1HBF about the small antennas: https://www.youtube.com/watch?v=XmBaLyaCio0
On my hompages you can read many things about me, my interested hobbies, my small antennas for shortwaves (they are only 5 - 20 cm long, builded from hairspraycans and with a very good efficiency) also the antenna building description.
73 de DL7AHW
The begin - my first 80m (long) antenna 2001/2002, 45cm long. Peter,dl2fi and I talked about my antenna 2002....
My 15cm long 40m antenna and DL7AHW in action, QRP 5 watt from FT-817. The newest antenna is only 10cm long.
My 40m antenna isf only 10cm long.
Constructions details of my capacity 40 m band antenna (German):
80 m capantenna from do1hbf 15cm diameter, 1.8m high. Cable break for all cap antennas. More on my homepages.
Alternative circuit diagram of the capacitive hairspraycan antenna (German):
Equivalent circuit diagramm from the hairspraycan antenna
My TEDDIES antennas
My disguise antennas Teddy2 and Teddy1 for 40m and 20 m band approx. 25 and 20 cm long!
And here my 80m metallball antenna. 15cm diameter. Very good...!
QSO's with my miniantennas 20m and 15m
And now the 80m antenna in use. Great QSO from Moers to Berlin (550km).
Country visitors since 01.07.2010
6640643 Last modified: 2015-08-14 16:29:54, 6090 bytes
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