QRP Projects

Homebrew QRP SSB Transceiver - This page describes a homebrew QRP SSB transceiver built by WB9IPA.

A simple SWR Meter - This article describes a simple QRP SWR meter built using readily available parts.

30m QRP Transceiver kit - 38 Special, 30m QRP transceiver by Norcal QRP club, single super het receiver, full QSK with sidetone smoothly

A Portable Antenna Matching Unit - A small HF antenna tuner project for qrp operations. Includes circuit diagrams pictures and test results by GW4ALG

QRP equipment - Simple QRP rigs, Transceivers with single side band direct conversion receivers, Receivers, Frequency counters for QRP

QRP homebrew equipment by py2ohh - py2ohh homebrewing of receivers, transmiters and Test Equipment for ham and swl, using cheap, easy to find or surplus components

QRP 20m Antenna Tuner Unit - A QRP antenna tuner for 20 meters band

5 Watt 40 Meters transmitter - This circuit is unique in that it uses a power mosfet as a final rather than a conventional bipolar transistor.

A QRP SWR meter - A real QRPp VSWR Meter project by DJ1ZB

Switched inductor L match tuner - A 10 to 80 meters band qrp antenna tuner by KC8AON, based on Steve Weber, KD1JV "ALT or Altoids L Tuner"

Rainbow Antenna Analyzer - A small and inexpensive measurement device designed to determine antenna performance across the amateur bands through use of automatically collected SWR readings

Digital QRP SWR & Power meter - A KD1JV Melt solder kit, a swr and power meter operating from 160 to 6 meters ideal for portable and field use

10 11 meters RF Power Amplifier - AM/FM/CW QRP RF Power Amplifier for the HF 10 or 11 meterband (28MHz/27MHz)

Mini ATU - SP5DDJ mini antenna tuner for QRP operations

Homebrew QRP SSB Transceiver  ^pop - This page describes a homebrew QRP SSB transceiver built by WB9IPA.

10 11 meters RF Power Amplifier - AM/FM/CW QRP RF Power Amplifier for the HF 10 or 11 meterband (28MHz/27MHz)

14MHz SSB transceiver - 14MHz SSB 10mW transceiver by JF1OZL

2W SSB Rig for 6 meters - 50 MHz SSB transceiver with a 2 W output

30m QRP Transceiver kit - 38 Special, 30m QRP transceiver by Norcal QRP club, single super het receiver, full QSK with sidetone smoothly

5 Watt 40 Meters transmitter - This circuit is unique in that it uses a power mosfet as a final rather than a conventional bipolar transistor.

80m SSB CW QRP superhet transceiver - The 80m SSB & CW transceiver design is based on an already proven concept used in ATLAS amateur transistorised transceivers from 70\'s

A 40 meter SSB QRP transceiver - This transceiver was conceived as a power-efficient, small, lighweight unit to be carried in the backpack, along with antenna and battery.

A Portable Antenna Matching Unit - A small HF antenna tuner project for qrp operations. Includes circuit diagrams pictures and test results by GW4ALG

A QRP SWR meter - A real QRPp VSWR Meter project by DJ1ZB

A simple SWR Meter - This article describes a simple QRP SWR meter built using readily available parts.

An Accurate Power Meter For QRP Ops - A circuit using two junkbox transistors and a garden variety op-amp that will let you accurately measure your rig\'s flea power down to milliwatts.

Basic QRP transmitter - A QRP transceiver project, design and build solid state QRP transmitter.

BITX 6W SSB transceiver for 14MHz - BITX is an easily assembled transceiver for the beginner with very clean performance.

Build a logging frequency counter - Pictures, photos, source code and plans to build a logging frequency counter

Digital QRP SWR & Power meter - A KD1JV Melt solder kit, a swr and power meter operating from 160 to 6 meters ideal for portable and field use

External Keypad for FT-817 - An external keypad for FT-817(ND), for the serious portable/field-day contester/operator. Homebrew it with the free firmware and public circuit diagram. The circuit is very simple and takes power supply from the ACC port of the radio

F6BQU - Transceiver for 80m - Home made 80 meters transceiver by SP5FCS using the F6BQU project

Five by Twenty - A 5 tubes SSB QRP transceiver for 20m ham radio band

G3YUH Morse Key Project - These pages cover the step by step construction of a Handmade Morse code telegraph key in pictures and text

Guide to Harmonic Filters for QRP Transmitter - A Short Guide to Harmonic Filters for QRP Transmitter Output. - George Dobbs G3RJV

Homebrew C-L-C QRP Antenna Tuner - This is a C-L-C type tuner with a reflected power indicator. Tuning is done for minimum reflected power.

KD1JV MMR-40 dead bug style - A 40 meter rig with SSB and CW operating modes. This is a low power QRP rig with up to 6 watts CW or PEP output.

Low-Power Transceiver Kits You Can Build - A Comprehensive roundup of the most popular QRP transceiver kits on the market in recent years in PDF format

M3 Electronix Semiconductor Analyzer Kit - A workbench instrument capable of testing transistors, diodes, FETs, usefull constructing QRP circuitry.

MFJ Cub QRP transceiver kit - Building the MFJ Cub QRP transceiver kit for 20 meters band by G4ILO

MicroBeacon - The MicroBeacon is the combination of a memory keyer and controllable RF attenuator.

Mini ATU - SP5DDJ mini antenna tuner for QRP operations

Multi-Four a VXO QRP Transmitter for HF bands - This transmitter has been designed for use on 20 30 40 and 80 m with 5W output

N2WF paddles - Paddles by Bill Nicolson, N2WF

N5ES - Outboard T/R Switch - N5ES Outboard T/R Switch For QRP Separates

N7KSB Milliwatt transmitter - N7KSB used this 1/2 watt CW transmitter, with a roof-mounted ground-plane antenna to work all continents and over 30 countries.

NB6M paddles - Paddles by Wayne McFee, NB6M

NN1G Transceiver - 30 meters band transceiver

NUE-PSK - NUE-PSK Digital Modem A digital modem for PSK31 field operation, without using a PC

Optimist-80 - A QRPp DSB transceiver for the 80 meter band (1 Watt PEP)

Pixie 3 - 80 m QRP transceiver - A 3500kHz - 3579kHz range transceiver, output 250 mw by SP5DDJ

Pixie2 - Pixie-2 schematic and part lists

Portable PSK Station - Color photos, schematic and diagrams for an article written by N2APB for Fall 2000 QRPp. Also the subject of a presentation made at the Pacificon QRP Forum in October 2000.An Integrated and Portable PSK Station for 80 & 20 without using a PC!

QRP 12V Power Pack - A perfect companion for your Elecraft K1 or any other (not power hungry...) QRP rig

QRP 1:1 Current-type Balun for Portable Use - A ferrite-loaded coaxial RF choke which just happens to yield the same result as a 1:1 current balun

QRP 20m Antenna Tuner Unit - A QRP antenna tuner for 20 meters band

QRP 20m ATU - A handy little QRP Antenna Tuner designed specifically for 20m, although it works fine up to 10m.

QRP 5 Mhz transceiver - A QRP VXO transmitter for 60 meter band by GW4ALG

QRP equipment - Simple QRP rigs, Transceivers with single side band direct conversion receivers, Receivers, Frequency counters for QRP

QRP homebrew equipment by py2ohh - py2ohh homebrewing of receivers, transmiters and Test Equipment for ham and swl, using cheap, easy to find or surplus components

QRP NESCAF Kit - The New England QRP NESCAF Kit Switched Capacitor Audio Filter by N5ESE

QRP Paddles - Paddles by Jim Nestor WK8G/2

QRP Power Meter and Dummy Load - In this article the schematic is of AA5TB QRP power meter and dummy (50 Ohm) load combination

QRP SWR Meter - SWR meter for low power output measurements, dedicated to QRP operations