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DH9DX Germany flag Germany

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XML Subscriber Lookups: 5781

Please add your callsign to my web contact log by clicking the "Web" button above. Thanks.

My log is uploaded to LoTW and CLUBLOG within a few days after activity. Never the less I'm collecting (and sending) paper QSL cards via bureau or direct.

I'm NOT an active user of eQSL.cc, but I upload my logs from time to time. In case of need, just drop me an email.

My main interests are making frinds around the world, chasing DX, contests and building up and testing wire and Yagi antennas, mostly /p.


Hello and thanks for looking me up! If you got a minute, here's my story...

HAM since 1993, call DG9BIP in JO33VM. I started being qrv on Sat's (AO10, AO13, etc.) and doing some VHF/UHF DX (mostly during NAC). Due to license restrictions, I just could listen to HF transmissions using a Kenwood R600 fed by an inverted V. Some times later I was qrv in ATV too.

Equipment in 1998, left picture, bottom to top - right picture shows mobile ATV operation (click on picture enlarges in new window)


  • Az/El Rotator Yaesu G-5600 controlled via Interface IF100 by InstantTrack running on a 386 computer, SSB PreAmp's 2m/70cm, Maspro 2m/70cm Oscar Hunter


  • 23cm home made dish with feeder, behind 23cm home made 20W PA in grey housing, 13cm home made feeder


In 2002 I went qrt because of job-related reasons and came back qrv in 2010 after moving to my actual qth, now on VHF/ UHF and HF (meanwhile respective license restrictions had been omitted). On 08-15-2012 I changed my callsign to DH9DX.


actual main rig:


  • Icom IC-731, ATU MFJ 994BRT, homemade 2 x 11,5 m wire doublet fed by 1 m ladder line connected to a homemade 1:4 Guanella balun
  • gear for digital modes, mainly PSK31: SignaLink USB, DXLab Suite, Pwr 20 Watts


  • Kenwood TR 751E, PA Tokyo Hy-Power HL-160V, PreAmp SSB SP-2, 3 el Yagi on a Yaesu G-5600B rotator


  • Kenwood TR 851E, PA SSB TLA 432/50, PreAmp SSB SP-70, 5 el Yagi on a Yaesu G-5600B rotator
  • PR 1k2: Grundig FK105/460 (modified for ham radio use), TNC AEA PK-88, homemade Moxon, WinGT
  • PR 9k6: T7F FSK-TRX, TNC2H-DK9SJ, homemade Moxon, WinGT

(all antennas are located in the attic)


portable rig:

common power source: 2 x Accumulator 12V/24 Ah in parallel - built into an aluminum tool case


  • Yaesu FT 757GXII, Voice Keyer MFJ 343 - built into an aluminum carrying case


  • Kenwood TR 751E, PA Tokyo Hi-Power HL120V - built into an aluminum carrying case

50 MHz

  • Yaesu FT-757GXII, homemade Transverter (only board by UT5JCW, Serge) with homemade attenuator board: 5 W in - abt 15 W out


mobile rig:


  • Icom IC-3200E, Diamond duoband antenna




  • Standard C-500


  • Icom IC-2E


Due to the high level of man made noise at my qth (S6-8), at the beginning of 2011 I decided to get qrv outside the cities.

I built up the portable rig, packed it into my car and drove out for testing...

After assembling and raising the antenna I powered on the rig and....it beat my expectations - noise level only S1-2! That's it!

So, if you hear me /p on the bands, I'm somewhere in the countryside, enjoying ham radio, the nature and from time to time the sun...


left to right: (click on picture enlarges in new window)

  • portable homemade ladder line fed wire inverted V for 80, 40, 20, 15 and 10m, 2 x 13m dipole, 15m ladder line, center pole 8m agl, side poles 3,5m agl
  • portable homemade wire triple leg for 15m (and similar for 20 and 10m), 7m agl
  • portable homemade wire 5/8 wave base loaded vertical (variometer loading coil in the grey housing at the bottom) with 8 radials, radiator for 20 and 15m with homemade coax trap
  • homemade wire dipole for 40m stretched between the poles


New project during winter 2012/13: endfed half-wave for 80 and 40m, now under test and improvement

  • 40/20m DX-Wire UL lifted up by a kite, endfed by homemade ATU (Z-Match) (right picture)

(click on picture enlarges in new window)

...same 40m wire stretched horizontal using a nearby tree and a pole attached to the car....

(click on picture enlarges in new window)

New portable antenna in 2014: homemade wire 5/8 wave triple leg for 10m, 6m agl


portable VHF equipment since May 2014:

left: homemade ultralight 7 el Yagi (design DK7ZB) abt 6m agl, mid: VHF rig, right: stn ready for contesting.. (click on picture enlarges in new window)


Improved portable VHF equipment since April 2015:

2 ultralight 7 el Yagis stacked (1st one abt 3m agl, right pic shows stacking details (click on picture enlarges in new window)


June 2015: now QRV on 50 MHZ from my 2nd location in JO52JD (DLFF 055)

left: ultralight 2 el Yagi (Design DK7ZB) abt 7m agl, mid: Yagi closeup, right: rig and transverter (click on picture enlarges in new window)


another new portable antenna in 2015: homemade wire Upper&Outer for 40m

(click on picture enlarges in new window)


That's it so far, to be continued....smiley  hpe cu on the bands! 73 es gd DX de Erwin


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QRZ Logbook Summary for - DH9DX
Latest Contacts for DH9DX at QRZ.com
dedateband mode grid Country op
A41OO 2013-09-08 15m SSB LL93if Oman KHALID .
IZ3SQW 2013-08-03 40m SSB JN55uq Italy MIRKO FILADI
DG5LAC 2013-05-26 40m SSB JO53cn Germany Michael (Mike) Selent
DK7BB 2013-03-10 2m FM JO33uo Germany Lutz Woch
ON2JD 2012-12-26 40M SSB JO20AV Belgium Jelle Dejonghe
DM2RM 2012-12-26 40m SSB JO63pt Germany Ron
IZ3SQW 2012-10-21 20m SSB JN55uq Italy MIRKO FILADI
DE3HBH 2012-10-21 15m SSB JO43xn Germany SWL Holger Behn
HZ1TT 2012-09-22 12m SSB LL34ir Saudi Arabia ali al duobie
LA1DP 2012-09-03 20m SSB JP20qi Norway Erik Aarheim
HS5NMF 2012-08-12 20m SSB OK03gv Thailand MR.NIKORN DEESAI
4L5LL 2012-08-11 15m SSB LN11ux Georgia Nodari A. Ugrelidze
A61QQ 2012-08-10 15m SSB LL74gk United Arab Emirates OBAID ALMESMARI
4X1ZZ 2012-04-21 10m SSB km71os Israel Howard Silverwater

Book Totals: 38 qso's   27 confirmed Get a free logbook at QRZ.COM

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Fri Oct 9 17:41:06 2015 UTC
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