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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, mathematics/physics 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 antenna day 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 homepages you can read many things about me, my interesting 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 80 m (long) antenna 2001/2002, 45cm long. Peter,dl2fi and I talked about my antennas 2002....



My 40m Capantenna 15cm long           

My 15 cm long 40 m antenna  and DL7AHW in action, QRP 5 watt from FT-817. The newest antenna is only 10 cm long.

  My 40m antenna is only 10 cm long.



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

constrction view 40m capantenna


80m antenna from do1hbf cablebreak for capantennas

80 m cap antenna from do1hbf 15 cm diameter, 1.8 m high. Cable break for all cap antennas. More on my homepages.


Alternative circuit diagram of the capacitive hairspraycan antennas (German):



plan from the capantennas

Equivalent circuit diagramm from the hairspraycan antenna


My TEDDIES antennas

My disguise antennas Teddy2 and Teddy1 for 40 m and 20 m band approx. 25 and 20 cm long!


And here my 80 m metal ball antenna. 15 cm diameter. Very good...!


QSO's with my mini antennas 20 m and 15 m





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



Country visitors since 01.07.2010

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7856807 Last modified: 2017-01-26 09:50:21, 6105 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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Sat Apr 29 13:20:40 2017 UTC
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