Morse Code Keyer and Sounder

This page emulates a Morse keyer combined with an iambic paddle. It can also be put into straight key mode (with no keyer). The default settings are suitable for the VBand interface, but you can also connect a Morse key via an interface which fires mouse clicks, or just use the keyboard directly.

Dit

Left-click, or press Z

Right-click, sends a Dah

 

Settings [ Help ]

Load some settings from a file (overwriting your current choices), or Save all the settings for this page in a file. Share Settings generates a link to bookmark your settings, insert into a document, or share with someone else. The Reset Settings button changes everything in this page to its default value.

Usage

The message is decoded and typed out in the page as you send it, with unrecognisable characters shown with a "#". Hovering over a character in the message shows the dits and dahs for that character.

VBand

The default keys of L-Ctrl and R-Ctrl are those used by the VBand interface, so just plug your key in, choose the Key Type, and you're all set.

Mouse

To use the mouse, hold down the left button and move the mouse from side to side (or slide your finger on a touch-screen). One side sends dits and the other side dahs. Alternatively, you can keep the mouse in one position and use both the left and right buttons. This second mode is suitable for when you have a Morse key connected to your computer's mouse interface.

Keyboard

To use the keyboard, press the keys you have configured for the left and right paddles. You can change the keys by clicking on the "Change Keys" button.

Keyer Types

A straight key will send a signal exactly as pressed by the operator so is very difficult to get the timing correct. A keyer (combined with a "paddle") makes sending Morse code easier. Instead of having to precisely time the dits, dahs and the spaces in between a paddle/keyer combination does a lot of the timing for you, using a speed setting of your choice. Pushing the paddle one way sends a string of repeating dits and pushing the paddle the other way sends a string of dahs.

An "iambic" keyer uses two paddles side by side and therefore lets you press both at once ("squeezing" them): in this mode dits and dahs will alternate. The keyer defaults to "iambic A" mode which sends alternating dits and dahs while both keys are pressed. With the toggle switch you can change to "iambic B" mode which adds one extra dit or dah to the end of the sequence.

To find out more, read the Straight Keys, Bugs, Paddles, Sounders and Keyers page.

Change log