Why Cw

WHY CW – Serial Morse Keyer Interface & Practice Tool For Open CW Keyer

WHY CW is a Windows application designed to interface with a Morse code keyer (such as a K3NG-based keyer) over a serial (COM) connection. It allows you to send text, control keyer settings via CLI commands, and practice Morse code reception in a structured way.

⚠️ Important Requirement

To use this application correctly, the keyer must have its CLI (Command Line Interface) enabled.

  • The program communicates with the keyer using CLI commands (e.g. \W20, \A, etc.)
  • If CLI mode is disabled, commands will not work and responses may be unpredictable
  • Make sure your keyer firmware is configured with CLI support enabled

Features

🔌 Serial Connection

  • Connect to any available COM port
  • Configurable baud rate (default: 115200)
  • Real-time RX/TX monitoring with both ASCII and HEX output

⌨️ Send Text to Keyer

  • Type text directly into the TX window
  • Press Enter to send it to the keyer
  • Text is transmitted as ASCII followed by CR/LF
  • Supports both plain text and CLI commands

⚙️ CLI Command Support

  • Built-in list of common keyer commands
  • Examples:
    • \A – Iambic A mode
    • \B – Iambic B mode
    • \W20 – Set speed to 20 WPM

📡 Live Decode Display

  • Incoming characters from the keyer are shown in real time
  • Filters out:
    • CLI/system messages
    • Practice playback echo
  • Only valid decoded Morse characters are displayed

🎯 Practice Mode

The built-in practice system helps you improve Morse reception:

  • Random callsigns are generated (e.g. SM6WHY)
  • The keyer transmits the callsign in Morse
  • You copy what you hear using your paddle/key
  • Your decoded input is compared automatically

Behavior

  • ✔ Correct answer → counted as correct, next round starts automatically
  • ❌ First incorrect attempt → counted as wrong
  • 🔁 You can retry until correct without extra penalty
  • 🧠 Streak counter tracks consecutive correct answers

📊 Statistics

  • Correct answers
  • Wrong answers
  • Current streak
  • Accuracy (%)

Auto Next

  • Automatically starts a new practice round after a delay
  • Configurable delay (1–10 seconds)
  • Can be turned ON/OFF

 

Download beta version here:

why-cw_beta.zip

 

 

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