This webpage lists all existing pages at In addition, there is a search for any terms at
For those, who visit my webpages often and who want to recognize changes quickly, I will label here in the table of contents new webpages with new and changed webpages with changed at the end of the line for two months. For status informations move your mouse over the respective marker.
Welcome at QRP4Fun!
Amateur radio − what's this?
Who I am
News and informations
newWhite Christmas in the mountains, 22 December 2017 to 6 January 2018
Three summits in two days − SOTA in the Black Forrest, 1 to 2 October 2017
11th Meeting of QRPer and homebrewer in the Black Forrest, 30 September 2017
Jersey − English language and French flair, 10 to 17 June 2017
Northern lights and amateur radio, 20 to 25 March 2017
End of the year in Liechtenstein, 17 December 2016 to 1 January 2017
On your marks (summits), get set, go!, 2 to 3 October 2016
10th Meeting of QRPer and homebrewer in the Black Forrest, 1 October 2016
On the way in Liechtenstein, 10 to 25 May and 12 to 20 September 2015
Between the years in Liechtenstein, 21 December 2014 to 3 January 2015
Hiking at the Azores, 14 to 25 May 2014
Turn of the year in Liechtenstein, 21 December 2013 to 5 January 2014
7th Meeting of QRPer and homebrewer in the Black Forrest, 5 October 2013
Highland, Lochs and Castles to on the way in Scotland, 17 to 30 August 2013
Mountains, snow and a radio station, 12 to 27 January 2013
Hiking in the Principality of Liechtenstein, 14 to 29 July 2012
Around the Brocken − on the way in the Upper Harz, 14 to 29 January 2012
On the way on water-waves and on radio-waves, 16 to 22 July 2011
Chalk, stones, wind und waves − as radio amateur on Rügen, 9 to 25 April 2011
Around Iceland, 15 to 28 July 2010
Tierra del Fuego − at the end of the world, 19 December 2009 to 4 Januar 2010
Wildflowers in the desert of South Africa, 21 August to 5 September 2009
Festival in the old town of Nauen − amateur radio visualized, 9 May 2009
Handicraft weekend in Jessern, 24 to 26 April 2009
Sand and more − Sandsation in Namibia, 14 to 29 March 2008
Andorra − On the way in the Pyrenees, 25 July to 3 August 2007
Between glaciers and geysers − Crosswise by Iceland, 13 to 26 July 2006
Nepal − Under the roof of the world, 23 December 2005 to 6 January 2006
Ireland, the Emerald Island, 25 July to 7 August 2005
3rd Meeting for QRP, Homebrewing and Youth at Adlersberg, 23 to 25 July 2004
Fascination of QRP and DX
What is QRP operation and what should I consider with it?
  What hides itself behind QRP?
  Operation mode − not only with a QRP station
Which technical demands required the QRP operation?
  Antenna Rules of Thumb, Jim Duffey, KK6MC
Where can I receive assistance?
What are DX stations, how do I find these and how reach I these?
  changedList of DXCC entities
  List of callsign series
  My DXCC results reached until now
  Thoughts on Working DX, Jim Duffey, KK6MC
QRP Hall of Fame
A lot of fun with telegraphy
(My) reasons for the use of CW
Structure of a CW character
International CW characters
  Enumeration of international CW characters
CW abbreviations
  List of CW abbreviations
CW rate and PARIS standard
Glance in the shack
QRP Plus, Index Laboratories
Green Mountain 15, Small Wonder Labs
  Modification for the Green Mountain
Green Mountain 10, Small Wonder Labs
NorCal40A, Wilderness Radio
NorCal40A, Wilderness Radio
K2, Elecraft
  Modifications for the Elecraft K2
Spatz, DL-QRP-AG
K1, Elecraft
KX3, Elecraft
QRP Automatic Tuner, LDG
  Modifications for the QRP Automatic Tuner
ZM-2, Emtech
Tuner for multiband Fuchs antenna, Frank Lamprecht, DL7AQT
  Construction of the multiband Fuchs antenna
ZM-4, Peter Zenker, DL2FI
Multiband vertical using the Fibreglass Telescope Tower FTT, Walter Spieth, DK9SQ
  Vertikal antenne on the balkony
MP-1, Super Antennas and follower HF-P1
Can antenna, Arthur Wenzel, DL7AHW
  Construction of the can antenna
18m fibreglas telescope mast, Spiderbeam
  Experiences with the 18m fibreglas telescope mast
Multi-band antenna to use out and about
  Construction of the multi-band antenna to use out and about
10 m GFK Mast Mini, DX-Wire
6 m GFK Portable Mast, Lambdahalbe
Accessory for the station
NiMH accumulators, Varta
Charger for NiMH accumulators, Basetech
Sealed lead-acid accumulators
  Capacity of lead-acid accumulators
  Charge methods of lead-acid accumulators
  Usage hints of lead-acid accumulators
Charger for sealed lead-acid accumulator, Egston
  Modification to the accumulator charger for sealed lead-acid accumulator
Straight key, Kent Engineers
Squeezer, Kent Engineers
Wabbler, Kent Engineers
Funky − a key using pressure sensors
  Construction of the Funky − a key using pressure sensors
CWF − finger morse key, Gerd Lienemann, DF9IV
  Construction of the CWF − finger morse key
Minkey, Englmar Wenk, DK1WE
Palm Portable Key, Palm Radio
Mini Morse Key, Markus Baseler, DL6YYM (BaMaTech)
newPalm Single, Palm Radio
Dummy loads
  Various dummy loads
Meters, testers, tools and tips
Freq-Mite, Small Wonder Labs
Digital Frequency Display DFD1, Almost All Digital Electronics (AADE)
Frequency counter without current
  Technical documentations for MFJ-259 and MFJ-259B
L/C Meter IIB, Almost All Digital Electronics (AADE)
  Modification for the L/C Meter IIB
WM-2, Oak Hills Research (OHR)
  Modifications for the WM-2
RF/AF probe, QRPproject
FA-NWT, Funkamateur (Box 73)
  Extentions for the FA-NWT
FA-SAV, Funkamateur (Box 73)
SARK-110, Melchor Varela, EA4FRB
Noise generator
  Construction of the noise generator
10MHz frequency standard with RS-GGO10M-TG
  Construction of the 10MHz frequency standard with an RS-GGO10M-TG
NJ Islander
  The NJ Islander and ICs
Step drill
  Use of step drills
Magnifying glass
Sprat CD-ROM (first edition with issues 1-100)
  Installation of the Sprat CD-ROM without floppy drive
Adapter BNC-plug to pole-terminal
Coil winding − the easy way
  Tutorial Coil winding − the easy way
Stand for transceiver
  Stand for small transceiver build from a CD case
Helpful mathematics
  Calculation of parallel/series connections of up to five resistors E12
  Calculation of parallel/series connections of two resistors E24
  Calculation of the star-delta-transform of resistors
  Calculation of attenuators
  Calculation of power attenuators
  Calculation of attenuators with minimum loss
  Calculation of signal splitters with resistors
  Color code calculator for resistors
  Calculation of parallel/series connections of up to five capacitors
  Calculation of band spread with variable capacitors
  Calculation of parallel/series connections of reactances
  Conversion of reactances in parallel/series connections
Resonant circuits and LC networks
  Calculation of resonant circuits
  Calculation of Fuchs networks
  Calculation of match of resistances with LC networks
  Calculation of match of reactances with LC networks
Power and voltage
  Conversion of power at 50 Ω
  Conversion of power and voltage at 50 Ω
Spherical geometry
  Calculation of the distance and direction between two points on earth
Thermal resistor of a heatsink
  Calculation of the thermal resistor of a heatsink
Special links
QRP clubs
Other QRP stations
QRP equipment and kits
Electronic elements
Antennas and masts
Software for ham radio operators
Spectrogram, Richard Horne
Spectrum Lab, Wolfgang Büscher, DL4YHF
sPlan, Abacom
Sprint-Layout, Abacom
Azimuth, Tony Field, VE6YP
AZMap, Paul Burton, AA6Z
Free Azimuthal Maps, Tom Epperly, NS6T
Mini Ring Core Calculator, Wilfried Burmeister (SK), DL5SWB; Klaus Warsow, DG0KW
NCDXF/IARU International Beacon Network
  Beacon schedule, Ingo Meyer, DK3RED
Kp Index, German Research Centre for Geosciences
Space Weather Conditions, Space Weather Prediction Center
Solar-Terrestrical Data, Paul L. Herrmann, N0NBH
HamQTH, Petr Hlozek, OK2CQR
Hamcall (formerly Buckmaster)
MailWasher Free, Mailwsher; MailWasher Pro, Firetrust
Validator, W3 Consortium
Javascript Lunar Eclipse Explorer, Fred Espenak; Chris O'Byrne
Javascript Solar Eclipse Explorer, Fred Espenak; Chris O'Byrne
Electronic baubles
WE1 − World radio, ELV Elektronik
KLU2001 − DCF77 controlled clock, ELV Elektronik
Food for heart and soul
Total lunar eclipse with "super blood moon"
As with the eye doctor
Stealth Antenna
Twisted letters
I love CW
Number problem
I wish you the time, Elli Michler
Inexhaustible power source
When God created the man, unknown author
Desiderata, Max Ehrmann
Logbooks and QSL cards
QSL cards
Notes for the guestbook
Index (this webpage here)