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This is a SSB and CW transceiver for the 80m and 20m bands. It produces 25 Watts out and uses a digital frequency display.

This circuit stores a single morse code message as bits in an EPROM chip, the message is sent to a relay which can key a CW transmitter.

An example of how to control a Yaesu FT-817 with an Arduino to make a multi-band CW beacon.

This is the schematic of asolid-state 7 MHz QRP CW transmitter by VU2NAN

A personal site about my homebrewed communications newsletter called Sporadic Waves.

Build a 5 watt, 80 meter QRP CW Transceiver

A simple low-power broadcast-type circuit, using a crystal oscillator integrated circuit and an a collector modulated AM oscillator

Home Made CW paddles made from a printed circuit board and a teflon mounting block while contacts are made with simple brass threaded rods.

The Visible CW Tuning Indicator flashes an LED when the signal is properly tuned by Bob Wolbert, K6XX

An Morse Code CW beacon keyer done with arduino include the source code and a movie

Application for the Apple Macintosh computer that provides a CW contesting interface for the popular MacLoggerDX loggging software. FKeyer runs on MacOS X and uses an external keyer such as the MicroHam CW keyer.

Cannot record CW message, AFSK not working, tracking not working, meter peak hold, on Yaesu FT-920.

Emergency service and weather, dedicated to the Community and City of New York

A project of a small CW key where most of the part is mechanical construction and a few just electronics by py2ohh

CWS ByteMark's Baluns (Balanced to Unbalanced) and Ununs (unbalanced to unbalanced) transformers are developed jointly with Dr. Jerry Sevick, W2FMI, who is known worldwide for his work on transmission line transformers

Adventure Radio, articles and reviews. This site has a whole host of ham related information.

zLog for Windows is a freeware full-featured contest logging software that runs on Windows. It supports major international and domestic (JA) contests and is customizable to many other contests not directly supported by zLog. Features include CW keying via parallel/serial/USB interfaces, highly sophisticated TCP/IP network that allows instant synchronization of a log of an M/M station, rig control, PacketCluster connenction. By JJ1MED/AD6AJ

How to become a High Speed CW operator, summary of information by AH6NB

A circuit for a 5 milliwatts super QRP morse code transceiver by VE2ZAZ

A short multi-band vertical antenna

At LCWO you can learn Morse telegraphy (CW) online in your browser, use Koch Method, compare your results with others, speed practice and more

The BP-3 was a valve-based spy radio transceiver, developed during WWII by Tadeusz Heftman of the Polish Military Wireless Unit in Stanmore (UK). It was introduced in 1943 and was intended for use by Agents and Resistance Organisations in Europe. The transmitter produces an output power of 50 Watts in CW

An home made cw transceiver by PA2OHH

Morse code MP3 audio files to download containing 200 hours of at increasing speeds plus an ASCII-to-CW file generator program

Interesting article by WY3A explaining benefits of operating CW

CW keyer by Idiom Press

The 3905 Century Club operates WAS and DX nets on 20,40,80,and 160 using SSB, CW, RTTY, and PSK modes.

Free windows morse code learning program. Whether you want to learn Morse code from scratch, never having heard a dit in your life, or you just want to speed up your copy for CW contesting, CW Teacher will help

Radiowave propagation in the medium and high frequency spectrum in DOC format

An Arduino based CW contest keyer addon, ideated and designed for the use in conbination with the K3NG Arduino keyer open-source firmware.

Site devoted to weak signal traffic SSB/CW V/UHF meteor Scatter,tropo, aurora, fai, ES homebrew

Yet another Arduino CW Decoder based on the OZ1JHM prototype this include a custom program that can be downlaoded along to component list and pictures

A Morse code TEXT-to-MIDI converter that creates a Morse code standard MIDI file from ASCII text.

10.100 - 10.140 MHz 3 Watts output by 7n3wvm

A PIC based morse code decoder circuit

Rules and regs and forms and previous winners of this event.

2 transistor transceiver for 28MHz CW

Easy to build RS232 keying interface for FSK and CW. Works with most popular RTTY software like MMTTY. Also works for with most contest software such as N1MM and Writelog for CW keying. Uses the RS232 port RTS, DTR, or TX data, optically isolated, PC boards available.

Lightweight keys and paddles may be great for backbacking, but what if all you want is the darn thing to stay reasonably still on the desk?

Pages fully dedicated to beginners guides, includes an interesting sample of a CW QSO, and a list of frequencies to practise morse code, useful for beginners,

A home page about CW and QRP.

An homemade cw paddle made in a double lever version for iambic keying out of a PC-board and in the same article the homemade Palm Mini-Paddle

A quick look at the code, the superiority of CW as a mode for amateur radio communications

A special edition of AALog, optimized for the use in a lot of different contests. It can export file in Cabrillo, .SUM and .ALL files, ADIF. To use this program in CW and digital modes you need to use CwType and TrueTTY.

HSCW/WSJT meteorscatter/path simulator a first attempt at trying to model meteorscatter events and simulate their transmission characteristics

A multi-mode PC to radio interface for PSK, CW, Packet and more digital modes.

Dedicated to providing superior products to the Amateur community. screwdriver Control, Icom 7000 and IC 706 tune control, voice and cw keyers for Icom Radios, yaesu tune control.

If you want to build a cw decoder without using other active components than an atmel 328 - Arduino UNO , then this is sure something for you.

This is not a sophisticated automatic keyer but it is lot QRP to build and to have fun operatin