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Morse Code Circuits
 

Last Updated: October 18, 2017 05:04 AM


Links to electronic circuits, electronic schematics, designs for engineers, hobbyists, students & inventors:

2 Way Morse Practice Set -  The first step to learning Morse is to be able to memorise the sounds of all letters and numbers.  This can be accomplished with the help of Morse practice tapes or classes.  Once you know all the characters, the WIA Morse practice broadcasts and/or continuous VHF Morse beacons can be used to increase your receiving speed.   __ Designed by Peter Parker VK3YE-first appeared in Amateur Radio, April 1998

2-way Morse practice set -  The first step to learning Morse is to be able to memorise the sounds of all letters and numbers.  This can be accomplished with the help of Morse practice tapes or classes.  Once you know all the characters, the WIA Morse practice broadcasts and/or continuous VHF Morse beacons can be used to increase your receiving speed.   __ Designed by Peter Parker

30-Meter QRP Transmitter for Morse Code -  This transmitters' intended purpose is for morse-code only in30 meter band (Tony van Roon's 10Mhz).  It is a low-power QRP type and needs to be connected to your existing tranceiver.  harmonic rejections onprototype were measured at 40dB on 20Mhz and 50dB on 30Mhz __ Designed by Tony van Roon  VA3AVR

7mhz CW/AM QRP Transmitter -  The circuit of a 7MHz C W / A M QRP transmitter described here can be used to transmit either CW or audio frequency modulated signal over a 7MHz carrier.The carrier...__ Electronics Projects for You

7MHz QRP Transmitter -  This was one of my very first transceiver developments.  This page was also one of the very first circuit descriptions that I put on the internet quite some years agon.  Today I would not build a transceiver like I did then, but it was working, so I have kept this page for historical (and sentimental) reasons.  If you are a beginner in building you own transceivers you might be able to steal a few of my ideas.  Please let me know if you do a full copy of the design, I would be interested in you practical experiences when operation on the air.   __ Designed by Herbert Dingfelder

A Two-Way Morse Practice Set -  The first step to learning Morse is to be able to memorise the sounds of all letters and numbers.  This can be accomplished with the help of Morse practice tapes or classes.  Once you know all the characters, the WIA Morse practice broadcasts and/or continuous VHF Morse beacons can be used to increase your receiving speed.   __ Designed by Peter Parker VK3YE

Analogue Electronic Key -  This circuit uses two comparator that are combined in what is called a window comparator, i.  e.  resistors R2, R5, and R10 determine a voltage window within which the voltage applied to the junction of D2 and D6 must lie in order for the outputs of IC2.  A and IC2.  B to both be high at the same time.  must register on this site __ Designed by Published in Elecktor July/Aug, 2010

Computerised Morse Code Generator/Transmitter -  The circuit given here can be used to send telegraphic messages via computer.  The message data entered through the computer keyboard is converted to corresponding Morse code and transmitted via the...__ Electronics Projects for You

CW Beacon Keyer -  This circuit stores a morse code message as bits in an EPROM chip, the message controls a relay that keys a CW (morse code) transmitter.  An Arduino processor can also be used in place of this circuit, that eliminates the need to build the circuit and program an EPROM. __ Designed by Forrest Cook

CW Tone Keyer -  Recently, I received email from an amateur wishing to key his transmitter from the tone output of a Morse Code generator program.  Although it is possible to connect to a COM port on the back of a PC using a diode-transistor configuration, this results in another precious COM port being used up.  The tone keyer is an ideal alternative and works very well.   __ Designed by Radio Amateur Society of Norwich

Easy FM Keyer -  Many no code Technician class amateurs who are struggling to learn 5 WPM code simply do not have any avenue to get the necessary on the air practice.  Figure 1 is a simple circuit which will generate a 700 Hz tone into any FM transceiver allowing an amateur to practice CW with another amateur on a 2 meter simplex frequency __ Designed by Radio Amateur Society of Norwich

Easy Morse Code Keyer -  For those amateurs who are planning to learn their code and upgrade, some type of on the air experience is virtually essential for the higher code speeds.  This means a paddle is needed as well as some type of keying circuit to drive it.  The circuit in figure 1 is based on the famous Curtis family of morse keyer chips and has a proven record of dependability __ Designed by Radio Amateur Society of Norwich

Lambic Keyer based on a PIC16F84 or PIC16C84 -  This iambic keyer uses a PIC16C84 or PIC16F84 microcontroller to generate the dot/dash timing and key the transmitter.  Most modern rigs are keyed by grounding the key line.  The maximum current on the keying line is usually no more than a few mA.  If your transmitter has high voltage or high current on the keying line, you will need to use a relay to key the rig __ Designed by EI9GQ homebrew radio

Morse Adaptor for your VHF/UHF FM rig -  Everyone knows that the best way to practice Morse is to use it on the air.  But how do you send Morse if you donít have a multimode HF or VHF transceiver?Well, you could hold a microphone up to a code practice oscillator, and hold the PTT down while pressing the key, but itís very clumsy, and the transmitted tone is likely to be harsh.  Clearly something better is needed.   __ Designed by Peter Parker

Morse Beacon -  The Morse beacon can be programmed with a short sentence or phrase, which is then retained in non-volatile memory and subsequently keyed out automatically in a repeating fashion as might be done to advertise a callsign, etc.   __ Contact Karen's Microprocessor Projects

Morse Code Alarm Clock Modification -  (Almost) Trivial application of an AT90S2313 or ATtiny2313 in an alarm clock to change the alarm from "BEEP BEEP BEEP BEEP BEEP BEEP BEEP BEEP" to "WAKE UP" in Morse code.  This was designed in response to a request and is in daily use __ Designed by Dick Cappels

Morse Code Beacon Keyer -  This circuit stores a morse code message as bits in an EPROM chip, the message controls a relay that keys a CW (morse code) transmitter.  An Arduino processor can also be used in place of this circuit, that eliminates the need to build the circuit and program an EPROM. __ Designed by G. Forrest Cook

Morse code display -  Schematic only, no circuit description given __ Designed by Jon Fick

Morse Code Practice Keyer 2 -  The speaker (LS1) can be any 8-ohm type up to 2-watts.  Supply voltage for this circuit is up to 15 volts, but 12V is more desirable if you choose to go with an adapter.  If possible, try to use a mylar or polyester kind of capacitor for C2 __ Designed by Tony van Roon  VA3AVR

Morse Code Practice Oscillator -  The speaker (LS) can be any 8-ohm type up to 2-watts.  C1 and C2 are ceramic capacitors.  C3 is an electrolytic type.  IC1 is a CMOS MC1455P or equivalent.  The CMOS type consumes a lot less current when used with the 9-volt battery, but if you don't want to spent the money then the LM555, NE555, etc.  are fine too and are pin-for-pin compatible with each other __ Designed by Tony van Roon  VA3AVR

Morse Code Tutor -  A program (23kb) written in C++.  Morse code uses dot and dash for communication.  Still it is popularly used for communication is short wave bands.  The Archive contains program source code and executable__ 

Morse Monitor -  Here is a little novelty circuit that I found in some time ago, dug out of the archives after an E-mail request.  The circuit was given to me by the late G8ABZ in about 1967 as a circuit that will oscillate first-time every-time.  I have added a diode detector so that it will generate a sound when a transmitter is keyed. __ Designed by Harry Lythall-SM0VPO

Morse paddle keyer -  his is a circuit that I particularly like due to its simplicity and speed of construction.  With this circuit, it is now possible to include a paddle keyer as an integral part of all, but the smallest, of QRP CW transmitters.  It also satisfies my intense hate for CMOS !! __ Designed by Harry Lythall-SM0VPO

PL Tone Encoder Board -  If your local repeater has got you singing the PL tone blues, then read on.  For less than $10, an inexpensive PL tone generator can be constructed that will bring new life into that old non-PL rig.   __ Designed by Radio Amateur Society of Norwich

RF Actuated CW Monitor -  amateur radio construction projects.   __ Designed by Peter Parker

Simple Circuit Morse Practice Oscillator -  This will be my next Homebrew project, a morse practice oscillator circuit.9W2AZV and I are going to build this as we are preparing ourselves to perfect our Morse code sending/receiving skills.  In the spirit of amateur radio/ham, we will homewbrew.  __ 

Smooth Tone Clickless CW SideTone Generator -  This circuit is about as good as it gets for generating morse code tones.  It may be used as a code practice oscillator, a tone generator for a keyer, a sidetone oscillator for a CW transmitter or an audio Modulated CW (MCW) generator for an FM transmitter or repeater __ Designed by G. Forrest Cook

Talking Morse Code Practice Computer -  Schematic Only __ Designed by Ken Staton

Touch CPO -  touch operated code practice oscillator using popular timer IC555.  Practice Morse code in a different way__ 

Two Way Morse Practice Set -  The first step to learning Morse is to be able to memorise the sounds of all letters and numbers.  This can be accomplished with the help of Morse practice tapes or classes.  Once you know all the characters, the WIA Morse practice broadcasts and/or continuous VHF Morse beacons can be used to increase your receiving speed.   __ Designed by Peter Parker VK3YE-first appeared in Amateur Radio, April 1998

VA3TO Programmable Beacon Keyer -  Schematic only__ Designed by de Hugh, VA3TO


Morse Code Circuits

 


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