Search results
There are several QRP clubs that have published documentation on this small transceiver: I remember the G-QRP that published "The Pixie File" a pdf with a collection of schematics, easily available on the internet. Generally these RTXs suffer from strong input signals,
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.
The easiest QRP is just a crystal-controlled oscillator. It usually has one to three amplifier stages to raise the power to between 1/2 to 5 watts. This will get you on the air quickly. Unfortunately crystal control means you must order $18 custom crystals for your favorite frequencies in each band.
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.
The schematic can be found in PDF format . The circuit uses a standard Bruene bridge as a directional coupler, but with a resistive voltage divider (R1 - R3). The reflected power induces a voltage at pin 3 of the coupler. Depending on that voltage, LEDs SWR 1 - 3 start to light.
controlled (single frequency) sub 1-Watt QRP CW transceiver. One of the most impressive features of the Pixie 2 besides its simplicity, are the modification possibilities such as operating at a wide range of RF frequencies. In this guide, the version we will be building is the S-Pixie as designed by Jason BG2XNN of LXQQFY.com in China.
Here is a rig that provides a real challenge for the QRP home builder. A classic circuit and a favorite in the QRP community. A QRP SSB/CW Transceiver for 14MHz -- Part 1. QST December 1989, pp. 18-21.
