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DD5CF Germany flag Germany

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QRP Station DD5CF

I have just started learning CW and believe in learning by doing, if you have reached this page after or during a CW QSO with me please let me apologise for my poor sending and thank you for your patience, I hope to improve with each QSO.


Accuracy Transcends Speed and Courtesy at all Times.


Please vist my QRP Portable Ops Blog at: http://dd5cf-g1zos.blogspot.de/


Worked all Britain WAB book number 19561 Please click on the link below for more information.


Hi, thanks for looking me up on QRZ.COM, I was born (March 1955) in Clacton-on-sea, UK and have lived in Germany since 1976, I also hold the call sign G1ZOS.

I enjoy working QRP and best of all when portable, to me QRP is not just about the reduction of power output to 10 watts SSB or 5w CW, it is also about using simple homebuilt equipment and simple wire antenna, but if you are able to afford commerical equipment and multi element high gain antenna on towers that is also good because it is the QRP SPIRIT that counts, simply reduce power and start enjoying the challenge of Ham Radio again.

I would prefer a deckchair copy to an armchair copy anyday.

I am also interested in digital modes and have built the Softrock RXTX ensemble with 1 watt output for 30m, 20m (700mW) and 17m (500mW) bands from a kit by KB9YIG, Tony Parks.


Also3 Ultimate QRSS Tx kits with 150 mW output for the 160m, 80m and 30m bands these kits also support WSPR. (Weak Signal Propagation Reporter)


I have had a lot of fun building these two and have already had spots of more than 5000 Kms when portable and at home running just 150 mW and 500 mW, this is nothing wait until you see how far other OM's are getting with just 1 or 2 mW.

At the moment I am trying out a homemade DL7PE-MicroVert monopole antenna for the 17m WSPR segment, the radiator is an alumium tube 23.5mm dia and26 cm long, my first spot on WSPR was into the USA at a distance of 7775 Kms with just 500 milliwatts, I am very impressed with this small stealthy antenna and will be building more to try out as possilble portable and SOTA antenna.

please click on the link below for more information on theMicroVert antenna.



please click on the link below for more information about WSPR.


In this picture you can see my outdoor shack, (from top to bottom, left to right) MKARS80 for 80 meters built from a kit running 4 watts.

The Fivehead for 40 meters built from a kit running 1.5 watts, I have added a 10 watt linear amplifier ( which I run at 5 watts), AGC and a 5 digit frequency counter, homemade single coil, balanced, Z-Match, the coil is wound on T-200 toroid (red).


With the N7VE miniature SWR indicator kit http://www.qrpkits.com/swrindicator.html

13m of 450 Ohm feeder to a 41m long doublet, 12m above ground.

The pictures above are from the river Rhein, Bonn, Bad Godesberg opposite the Siebengebirge hills.

This is my Hairspray can antenna for 40m band from an idea by DL7AHW. I have had a number of QSO's of 900 Kms (560 Miles) using 1.5 watts and the Hairspray can antenna, I am looking forward to see what this setup can do with5 watts.


also in English http://dl7ahw.bplaced.net/Superantenne00E.htm if you need some advice with the construction of this antenna please contact me either by Skype (see below) or email (see above).

and a 1:1 balun kit, rated for 800 watts (not much chance of over heating with just 10 watts) from DG0SA Wolfgang, http://www.wolfgang-wippermann.de/

The Fivehead QRP Tranceiver from a kit by G3PCJ http://www.walfordelectronics.co.uk/

I have enjoyed many hours of QRP/Portable operation with this setup, its a lot of fun why not try it yourself.


This is my antenna arrangement at home, the folded G5RV is called a "Tactical Delta Loop" and is from an idea by KC8AON, please click on the link below for more infomation on this antenna.


My first Sota activation DM / MW-001


All my equipment is homebrew from kits by:

http://www.walfordelectronics.co.uk/ and http://www.radio-kits.co.uk/mkars80page.html

I am in no way affiliated with the above websites I am just a satisfied customer.

Please QSL via E-QSL or Snailmail. Skype-name: colin-dd5cf-g1zos. Echolink via DL0DMK-L (EL# 482519)

Vy 72/73 de DD5CF / G1ZOS, Colin


G-QRP# 4057 Please click on the links below for information on joining the various clubs


Flying Pigs QRP#-2656






Straight Key Century Club (SKCC) # 15786





And this was how it all started

My very first CB Radio an OTRON CB-401, Call Sign "Gipsy Moth"

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8308586 Last modified: 2017-09-02 07:54:25, 10026 bytes

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