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This is a simple SWR and RF power indicator for QRP transceivers. It will work well with 1...5 W rigs. The circuit is based on a design by Hans Steinort (DF3OS), see http://www.sp5jnw.sem.pl/konstrukcje/atudf3oshtm/atudf3oseng.pdf, with improvements from Dieter Engels (DJ6TE) and Hannes Hiller (DL9SCO).
This book aims to collect and share knowledge related to the art of QRP. There are many schemes and projects available on the web, but after some time some schemes disappear if the sites are no longer maintained.
This page has been set up so that more detail of the schematics can be seen than might be available in the printed article and also includes two parts lists. One list is set up so that all of the parts for a specific buidling block complete with the part numbers and the identified supplier.
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• Appoximately 1 Watt RF power • Clear, concise step-by-step instructions carefully guide you to a finished kit that not only works - but you’ll also learn too! • Proven design that has won many of awards for operators around the country! • Add our case and knob set for a finished ‘Pro’ look. Cases match all
15 cze 1998 · An exclusive collection of QRP circuits. Do it your self, come and get simple circuits that you can build to enjoy real hamming. Simple Receivers, Transmitters, Transceivers, Antennas and many more.
Chapter 6. BUILDING A HOMEBREW QRP. Among the guys I work, QRPs seem to be the most common homebrew project, second only to building antennas. Therefore this chapter describes a simple QRP design I have settled on. I use my QRPs as stand-alone transmitters or I use them to drive a final amplifier to produce higher power, 25 to 100 watts.
