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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.dl7ahw.darc.de/ or 2. http://dl7ahw.bplaced.net/

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

..........................................................................................:  https://www.youtube.com/watch?v=g9HJNHefwV0


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 40m Capantenna 15cm long           

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):

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...!


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

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6640643 Last modified: 2015-08-14 16:29:54, 6090 bytes

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QRZ Logbook Summary for - DL7AHW
Latest Contacts for DL7AHW at QRZ.com
dedateband mode grid Country op
3B9FR 2015-03-18 15m CW MH10rg Rodriguez Island ROBERT FELICITE
UE16HQ 2014-09-23 15m CW JJ00aa Russia HAM FORMULA ONE Headquarter Team
HB9CCM 2014-08-22 10m SSB JN47ef Switzerland Peter C. Sonderegger
SU9AF 2014-03-05 10m CW KL59nx Egypt Andrew (Sparky)
DL9FCS 2013-10-04 40m SSB JO40ja Germany Gazi Balci
KK4SBS 2013-06-29 2m FM FM05rg United States John T Mullen
VU2XO 2013-04-08 10m SSB ML88pq India MANUBHAI PATEL
EA3AYQ 2013-03-01 20m PSK63 JN11ms Spain Joaquim Pazo
DL6TY 2013-02-14 80m SSB JO44lo Germany GERHARD MOEDINGER
DB5SP 2013-02-14 80m SSB JN58te Germany Peter Steindl
ON3IND 2013-02-10 80m SSB JO20lw Belgium Justin Vranken
PA2QXT 2013-02-08 80m MFSK16 JO21fw Netherlands Michael Bulsing
IZ0UYB 2013-01-27 20m SSB JN61il Italy Marco Pelella
DL7DRF 2012-12-02 80m SSB JO40eu Germany Michael Fuchs
LB2TB 2012-10-27 40M CW JO59kf Norway Lars Roksund

Book Totals: 41 qso's   35 confirmed Get a free logbook at QRZ.COM

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