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DL7AHW Germany flag Germany

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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,

1.http://www.mydarc.de/dl7ahw/ or 2. http://dl7ahw.bplaced.net/

Here you can find the calculation programs in German: http://www.mydarc.de/dl7ahw/berechnen00.htm

and here the programs in English: http://www.mydarc.de/dl7ahw/berechnen00e.htm


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====>> More pictures on the next pages


The begin - my first 80m (long) antenna 2001/2002, 45cm long. Peter,dl2fi and I talked about my antenna 2002....


My 40m Capantenna 15cm long

My 40m antenna 15cm long and DL7AHW in action, QRP 5 Watt. The new antenna is only 10cm long.

  Antenna with a long of only 10cm.



Constructions details of my capacity 40 m band antenna (German):

constrction view 40m capantenna


80m antenna from do1hbf cablebreak for capantennas

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):



plan from the capantennas

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...!


And now the 80m antenna in use- Great QSO from Moers to Berlin (550Km).



Country visitors since 01.07.2010

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1856066 Last modified: 2015-04-08 13:34:02, 5233 bytes

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