This webpage lists all existing webpages at www.qrp4fun.de. New and modified pages are marked with a time stamp for 50 days. To do this, simply move the mouse pointer over the marker or . In addition, there is also a Search to find any words on all webpages listed here.
 
Welcome at QRP4Fun
– Amateur radio - what's this?
– Who I am
– Imprint, privacy, contact
 
News and information
– Visiting the new ones in the state of Brandenburg 13.4.2024
– Archive of news and information
 – DLFF activations instead of Easter egg hunts 29. - 31.3.2024
 – DLFF activations in fall and winter 2023/2024 15.10.2023 - 9.3.2024
 – From the ravine to the summit 29.9. - 3.10.2023
 – 15. Black Forrest Meeting of QRPer and homebrewer 30.9.2023
 – By bike through the Uckermark and the Barnim Plateau 12. - 19.8.2023
 – By bike through the Uckermark 15. - 23.7.2023
 – Hount for DXCC points in CQ WW WPX 27. - 28.5.2023
 – Winter holidays in Liechtenstein 12. - 18.2.2023
 – Between Christmas and New Year in Harz Mountains 26.12.2022 - 1.1.2023
 – DLFF in autumn 2022 6. - 13.11.2022
 – SOTA and DLFF in the Black Forrest 29.9. - 3.10.2022
 – 14. Black Forrest Meeting of QRPer and homebrewer 1.10.2022
 – HBFF, SOTA and WCA in Liechtenstein 15. - 31.7.2022
 – DLFF in Spring/Summer 2022 12.3. - 9.7.2022
 – Winter storms and sunshine 12. - 27.2.2022
 – On the way in Brandenburg 14. - 26.9.2021
 – WWFF/DLFF - Alternative for the DX hunt 12. - 22.6.2021
 – Another SOTA activity and hiking in Liechtenstein 14. - 30.8.2020
 – Another activation of the Alps on the lowbands 19.12.2019 - 4.1.2020
 – 13. Black Forrest Meeting of QRPer and homebrewer 5.10.2019
 – 7 summits in 7 days - SOTA in the Black Forrest 28.8. - 4.10.2019
 – SOTA activity and hiking in Liechtenstein 13. - 28.7.2019
 – Activation of the Alps on the lowbands 22.12.2018 - 5.1.2019
 – 12. Black Forrest Meeting of QRPer and homebrewer 29.9.2018
 – SOTA and QRP in the Black Forrest 28. - 30.9.2018
 – SOTA activity in Liechtenstein 14. - 21.7.2018
 – White Christmas in the mountains 22.12.2017 - 6.1.2018
 – 3 summits in 2 days - SOTA in the Black Forrest 1. - 2.10.2017
 – 11. Black Forrest Meeting of QRPer and homebrewer 30.9.2017
 – Jersey - English language and French flair 10. - 17.6.2017
 – Northern lights and amateur radio 20. - 25.3.2017
 – End of the year in Liechtenstein 17.12.2016 - 1.1.2017
 – On your marks (summits), get set, go! 2. - 3.10.2016
 – 10. Black Forrest Meeting of QRPer and homebrewer 1.10.2016
 – On the way in Liechtenstein 10. - 25.5. and 12. - 20.9.2015
 – Between Christmas and New Year in Liechtenstein 21.12.2014 - 3.1.2015
 – Hiking at the Azores 14. - 25.5.2014
 – Turn of the year in Liechtenstein 21.12.2013 - 5.1.2014
 – 7. Black Forrest Meeting of QRPer and homebrewer 5.10.2013
 – Highland, Lochs and Castles to on the way in Scotland 17. - 30.8.2013
 – Mountains, snow and a radio station 12. - 27.1.2013
 – Hiking in the Principality of Liechtenstein 14. - 29.7.2012
 – Around the Brocken - on the way in the Upper Harz 14. - 29.1.2012
 – On the way on water-waves and on radio-waves 16. - 22.7.2011
 – Chalk, stones, wind und air waves on Rügen 9. - 25.4.2011
 – Around Iceland 15. - 28.7.2010
 – Tierra del Fuego - at the end of the world 19.12.2009 - 4.1.2010
 – Wildflowers in the desert of South Africa 21.8. - 5.9.2009
 – Festival in the old town of Nauen - amateur radio visualized 9.5.2009
 – Handicraft weekend in Jessern 24. - 26.4.2009
 – Sand and more - Sandsation in Namibia 14. - 29.3.2008
 – Andorra - on the way in the Pyrenees 25.7. - 3.8.2007
 – Between glaciers and geysers - crosswise by Iceland 13. - 26.7.2006
 – Nepal - under the roof of the world 23.12.2005 - 6.1.2006
 – Ireland, the Emerald Island 25.7. - 7.8.2005
 – 3. Adlersberg Meeting - QRP, Homebrewing and Youth 23. - 25.7.2004
 
Fascination of QRP and DXing
– 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?
 – QRP frequencies
– What are DX stations, how do I find these and how reach I these?
 – List of DXCC entities
 – List of callsign series
 – Number of DXCC entities reached
 – Thoughts on Working DX Jim Duffey, KK6MC
– QRP Hall of Fame QRP Amateur Radio Club International
 
A lot of fun with wireless 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
 
Transceiver - you can't own enough of that
– Elecraft KX3 Wayne Burdick, N6KR; Eric Swartz, WA6HHQ
– Elecraft K1 Wayne Burdick, N6KR; Eric Swartz, WA6HHQ
– Spatz Peter Solf, DK1HE
– Elecraft K2 Wayne Burdick, N6KR; Eric Swartz, WA6HHQ
 – Modifications for the Elecraft K2
– Wilderness Radio NorCal40A (modified for 80 m) Wayne Burdick, N6KR
– Wilderness Radio NorCal40A Wayne Burdick, N6KR
– Small Wonder Labs Green Mountain 10 Dave Benson, K1SWL
– Small Wonder Labs Green Mountain 15 Dave Benson, K1SWL
 – Modification for the Green Mountain 10 and 15
– Index Laboratories QRP Plus
 
Antennas, masts and tuners
– Fibreglass Telescope Tower FTT Walter Spieth, DK9SQ
 – Vertikal antenne on the balkony
 – Approval
 – Self-declaration
– Super Antennas MP-1 Vern Wright, W6MMA
   and Difona HF-P1
– Can antenna Arthur Wenzel, DL7AHW
 – Construction of the can antenna
– Spiderbeam 18m fibreglas telescope mast Founder Cornelius Paul, DF4SA
 – 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
– Twisted-Hille antenna Peter Zenker, DL2FI
 – Construction of a Twisted-Hille antenna - extended version
– DX-Wire 10 m GFK Mast Mini Peter Bogner, DK1RP
 – Protection for telescopic masts
– Lambdahalbe 6 m GFK Portable Mast Willi Daubermann, DH3PZ
– LDG Electronics QRP Automatic Tuner Dwayne Kincaid, WD8OYG
 – Modifications for the QRP Automatic Tuner
– Emtech ZM-2 Roy Gregson, W6EMT
– Tuner for multiband Fuchs antenna Frank Lamprecht, DL7AQT
 – Construction of the multiband Fuchs antenna
– QRPproject ZM-4 Peter Zenker, DL2FI
 
Power supply, battery and charger
– Main power supply
 – Voltcraft FPS 4A and Voltcraft FPS-1132
– Sealed lead-acid batteries and chargers
 – Sealed lead-acid batteries
  – Capacity of lead-acid batteries
  – Charge methods of lead-acid batteries
  – Usage hints of lead-acid batteries
 – Egston Mainy
  – Conversion of the Egston Mainy to a sealed lead-acid battery charger
– NiMH batteries and chargers
 – Varta NiMH batteries
  – Clip for 9-V-block battery
 – Basetech BTL-12 and Basetech BTL-14
– LiFePo4 batteries and chargers
 – LiFePo4 batteries
 – Egston N2EFSW3-12W
 – Conversion of the Egston N2EFSW3-12W to a LiFePo4 battery charger
 – Voltcraft SPS24-24W-A
  – Conversion of the Voltcraft SPS24-24W-A to a LiFePo4 battery charger
 
Accessory for the station
– Kent Engineers KT1 - Hand Morse Key
– Kent Engineers TP1 - Twin Paddle Morse Key
– Kent Engineers SP1 - Single Paddle Morse Key
– 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 Radio PPK - Palm Portable Key
– BaMaTech Mini Morse Key Markus Baseler, DL6YYM
– Palm Radio PS - Palm Single
– K1EL WKmini nano UK - Kanga Products
 
Meters and testers
– Small Wonder Labs Freq-Mite Dave Benson, K1SWL
– Almost All Digital Electronics (AADE) DFD1 - Digital Frequency Display
– Frequency counter without current
– SWR-Meter
– MFJ Enterprises MFJ-259B
 – Technical documentations for MFJ-259 and MFJ-259B
– Almost All Digital Electronics (AADE) L/C Meter IIB
 – Modification for the L/C Meter IIB
– Oak Hills Research (OHR) WM-2 Founder Doug DeMaw, W1FB
 – Modifications for the WM-2
– QRPproject RF/AF probe
– Box 73 FA-NWT1
 – Extentions for the FA-NWT1
– Box 73 FA-NWT2
– SARK-110 Melchor Varela, EA4FRB
– Noise generator
 – Construction of the noise generator
– RS-GGO10M-TG - 10 MHz frequency standard
 – Construction of the 10 MHz frequency standard with an RS-GGO10M-TG
– Dummy loads
 – Various dummy loads
– Voltcraft PM-60-A - DC Power meter
 
Tools and tips
– NJ Islander Dov Rabinowitz, AD0V
 – 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 Alex Krist, KR1ST
 
Helpful mathematics
– Resistors
 – Calculation of parallel/series connections of up to 5 resistors E12
 – Calculation of parallel/series connections of 2 resistors E12/E24/E48
 – 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
– Capacitors
 – Calculation of parallel/series connections of up to 5 capacitors
 – Calculation of band spread with variable capacitors
– Reactances
 – Calculation of parallel/series connections of reactances
 – Conversion of reactances in parallel/series connections
 – Calculation of reactances
– 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
 – Calculation of antenna reactances
– Power and voltage
 – Conversion of power and voltage at 50 Ω
– Locator, distance and direction
 – Convertion of locator in latitude an longitude
 – Calculation of distance an direction between 2 ponits of earth
– Thermal resistor of a heatsink
 – Conversion of locator in latitude and longitude
 – Calculation of the distance and direction between 2 points
 – Calculation of the thermal resistor of a heatsink
– Keying speed
 – Conversation of the keying speed
– Antenna
 – Calculation of a doublet antenna
 – Calculation of a multiband antenna
 
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 Ingenieurgesellschaft
– Sprint-Layout Abacom Ingenieurgesellschaft
– Azimuth Tony Field, VE6YP
– AZMap Paul Burton, AA6Z
– Free Azimuthal Maps Tom Epperly, NS6T
– Mini Ring Core Calculator Wilfried Burmeister, DL5SWB; Klaus Warsow, DG0KW
– NCDXF/IARU International Beacon Network
 – Beacon schedule
– VOACAP NTIA/ITS
– 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
– QRZ.COM Fred Lloyd, AA7BQ
– Hamcall Buckmaster International
– SelfHTML Stefan Münz
– ftp-uploader Gregor Schommer Systemberatung
– MailWasher Free Mailwsher
   and MailWasher Pro Firetrust
– AntiVir Avira
– Firefox Mozilla Foundation
– Thunderbird Mozilla Foundation
– form.taxi Reinhard Söllradl - wrkt*biz
– Validators with W3 Consortium
   Makeup Validator Service, CSS Validation Service, Link Checker
– Javascript Lunar Eclipse Explorer Fred Espenak; Chris O'Byrne
– Javascript Solar Eclipse Explorer Fred Espenak; Chris O'Byrne
– UTC and local time
– KComm Julian Moss, G4ILO
 
Electronic gadgets
– Games
 – Kalah
 – Four in a row
 – Master Mind
 – Super Master Mind
– WE1 - World radio ELV Elektronik
– KLU2001 - DCF77 controlled clock ELV Elektronik
 
Food for heart and soul
– Flying subtenants
– Mammatus clouds
– Total lunar eclipse with "super blood moon"
– As with the eye doctor
– Stealth Antenna
– Jumbled letters
– I love CW
– Number problem
– Cleaning
– I wish you the time Elli Michler
– Inexhaustible power source
– When God created the man unknown author
– Desiderata Max Ehrmann
 
Logbooks - stationary, portable and DXpeditions domestic and international
– Logbook DK3RED
– Logbook CT7/DK3RED
– Logbook EA8/DK3RED
– Logbook EI/DK3RED
– Logbook HB0/DK3RED/P
– Logbook MJ/DK3RED
– Logbook TF/DK3RED/P
– Logbook DK3RED/TI2
– Logbook TK/DK3RED/P
– Logbook ZL/DK3RED
– Logbook ZS/DK3RED
 
QSL cards - sent and received
– Sent QSL cards for domestic activities
– Sent QSL cards for DXpeditions
– Received QSL cards from DX stations
– Received QSL cards from European stations
 
Guestbook
– Notes for the guestbook
 
Table of contents (this webpage here)
– Search and found