QRP Projects

QRP projects and kits

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Home : Technical Reference : QRP Projects

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  • 10 11 meters RF Power Amplifier - AM/FM/CW QRP RF Power Amplifier for the HF 10 or 11 meterband (28MHz/27MHz)
    [ Hits: 4244 | Votes: 5 | Rating: 5.00 ]
  • 14MHz SSB transceiver - 14MHz SSB 10mW transceiver by JF1OZL
    [ Hits: 1285 | Votes: 2 | Rating: 10.00 ]
  • 2W SSB Rig for 6 meters - 50 MHz SSB transceiver with a 2 W output
    [ Hits: 1150 | Votes: 2 | Rating: 1.50 ]
  • 30m QRP Transceiver kit - 38 Special, 30m QRP transceiver by Norcal QRP club, single super het receiver, full QSK with sidetone smoothly
    [ Hits: 13598 | Votes: 15 | Rating: 5.60 ]
  • 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.
    [ Hits: 7493 | Votes: 6 | Rating: 4.50 ]
  • 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
    [ Hits: 957 | Votes: 3 | Rating: 1.67 ]
  • 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.
    [ Hits: 1893 | Votes: 1 | Rating: 1.00 ]
  • A Portable Antenna Matching Unit  updated - A small HF antenna tuner project for qrp operations. Includes circuit diagrams pictures and test results by GW4ALG
    [ Hits: 12986 | Votes: 5 | Rating: 5.40 ]
  • A QRP SWR meter - A real QRPp VSWR Meter project by DJ1ZB
    [ Hits: 7327 | Votes: 0 | Rating: 0.00 ]
  • A simple SWR Meter - This article describes a simple QRP SWR meter built using readily available parts.
    [ Hits: 14552 | Votes: 6 | Rating: 4.83 ]
  • 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.
    [ Hits: 647 | Votes: 0 | Rating: 0.00 ]
  • Basic QRP transmitter - A QRP transceiver project, design and build solid state QRP transmitter.
    [ Hits: 1445 | Votes: 2 | Rating: 2.00 ]
  • BITX 6W SSB transceiver for 14MHz - BITX is an easily assembled transceiver for the beginner with very clean performance.
    [ Hits: 1386 | Votes: 5 | Rating: 9.80 ]
  • Build a logging frequency counter - Pictures, photos, source code and plans to build a logging frequency counter
    [ Hits: 1760 | Votes: 2 | Rating: 2.50 ]
  • 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
    [ Hits: 4456 | Votes: 4 | Rating: 1.75 ]
  • 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
    [ Hits: 2073 | Votes: 2 | Rating: 5.50 ]
  • F6BQU - Transceiver for 80m - Home made 80 meters transceiver by SP5FCS using the F6BQU project
    [ Hits: 1788 | Votes: 7 | Rating: 2.14 ]
  • Five by Twenty - A 5 tubes SSB QRP transceiver for 20m ham radio band
    [ Hits: 612 | Votes: 2 | Rating: 4.00 ]
  • G3YUH Morse Key Project - These pages cover the step by step construction of a Handmade Morse code telegraph key in pictures and text
    [ Hits: 3360 | Votes: 3 | Rating: 8.00 ]
  • Guide to Harmonic Filters for QRP Transmitter - A Short Guide to Harmonic Filters for QRP Transmitter Output. - George Dobbs G3RJV
    [ Hits: 294 | Votes: 2 | Rating: 9.50 ]
  • 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.
    [ Hits: 3835 | Votes: 1 | Rating: 1.00 ]
  • Homebrew QRP SSB Transceiver - This page describes a homebrew QRP SSB transceiver built by WB9IPA.
    [ Hits: 18126 | Votes: 16 | Rating: 7.94 ]
  • 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.
    [ Hits: 1006 | Votes: 5 | Rating: 8.20 ]
  • Knobless Wonder 7 MHz SSB transceiver - A simple fixed frequency SSB voice transceiver for the 7 MHz amateur band
    [ Hits: 333 | Votes: 1 | Rating: 1.00 ]
  • 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
    [ Hits: 1988 | Votes: 1 | Rating: 10.00 ]
  • M3 Electronix Semiconductor Analyzer Kit - A workbench instrument capable of testing transistors, diodes, FETs, usefull constructing QRP circuitry.
    [ Hits: 614 | Votes: 2 | Rating: 6.00 ]
  • MFJ Cub QRP transceiver kit - Building the MFJ Cub QRP transceiver kit for 20 meters band by G4ILO
    [ Hits: 651 | Votes: 0 | Rating: 0.00 ]
  • MicroBeacon - The MicroBeacon is the combination of a memory keyer and controllable RF attenuator.
    [ Hits: 1054 | Votes: 1 | Rating: 10.00 ]
  • Mini ATU - SP5DDJ mini antenna tuner for QRP operations
    [ Hits: 3639 | Votes: 0 | Rating: 0.00 ]
  • 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
    [ Hits: 775 | Votes: 0 | Rating: 0.00 ]
  • N2WF paddles - Paddles by Bill Nicolson, N2WF
    [ Hits: 991 | Votes: 1 | Rating: 3.00 ]
  • N5ES - Outboard T/R Switch - N5ES Outboard T/R Switch For QRP Separates
    [ Hits: 246 | Votes: 1 | Rating: 5.00 ]
  • 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.
    [ Hits: 2222 | Votes: 1 | Rating: 1.00 ]
  • NB6M paddles - Paddles by Wayne McFee, NB6M
    [ Hits: 949 | Votes: 0 | Rating: 0.00 ]
  • NN1G Transceiver - 30 meters band transceiver
    [ Hits: 2166 | Votes: 4 | Rating: 6.25 ]
  • NUE-PSK - NUE-PSK Digital Modem A digital modem for PSK31 field operation, without using a PC
    [ Hits: 1116 | Votes: 2 | Rating: 10.00 ]
  • Optimist-80 - A QRPp DSB transceiver for the 80 meter band (1 Watt PEP)
    [ Hits: 931 | Votes: 3 | Rating: 7.00 ]
  • Pixie 3 - 80 m QRP transceiver  updated - A 3500kHz - 3579kHz range transceiver, output 250 mw by SP5DDJ
    [ Hits: 2794 | Votes: 10 | Rating: 5.60 ]
  • Pixie2 - Pixie-2 schematic and part lists
    [ Hits: 1854 | Votes: 1 | Rating: 1.00 ]
  • Portable PSK - Integrated PSK station for 80 & 20 meters without using a PC Pictures and diagrams by N2APB
    [ Hits: 263 | Votes: 0 | Rating: 0.00 ]
  • 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!
    [ Hits: 1000 | Votes: 0 | Rating: 0.00 ]
  • QRP 12V Power Pack - A perfect companion for your Elecraft K1 or any other (not power hungry...) QRP rig
    [ Hits: 1378 | Votes: 1 | Rating: 1.00 ]
  • 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
    [ Hits: 2484 | Votes: 2 | Rating: 3.00 ]
  • QRP 20m Antenna Tuner Unit - A QRP antenna tuner for 20 meters band
    [ Hits: 9774 | Votes: 4 | Rating: 7.75 ]
  • QRP 20m ATU - A handy little QRP Antenna Tuner designed specifically for 20m, although it works fine up to 10m.
    [ Hits: 409 | Votes: 1 | Rating: 8.00 ]
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