The CW Keyer & Trainer is a versatile 2-in-1 keyer and key practice trainer that supports both manual and automatic Morse code keying. Designed for CW (continuous wave) enthusiasts, this device provides a compact, portable, and highly functional solution for learning, practicing, and operating Morse code. With features tailored for both beginners and experienced operators, this keyer and trainer is an essential tool for anyone serious about perfecting their CW skills.

What is it?

This is a dual-purpose device that works as both a CW keyer and an automatic key practice trainer. As a keyer, it allows you to control Morse code transmission with a QRP radio even if the radio does not have a built-in keyer function. When used as a key practice trainer, it supports vertical manual key operation (straight key), horizontal paddle keys, mechanical semi-automatic keys, and all forms of automatic keying systems. Its portability and ease of use make it the perfect companion for amateur radio operators who practice Morse code on the go.

Key Features & Advantages

Compact and Portable

At only the size of a standard eraser, this device is ultra-portable. Its thin profile makes it easy to store in a pencil case, backpack, briefcase, or even a pocket. For operators who already carry a QRP radio and key, this keyer and trainer takes up nearly no space, allowing users to practice and operate in virtually any setting without being burdened by bulky equipment.

Powered by a Single CR2032 Battery

Unlike traditional keyers that require external power sources, this device runs on a single CR2032 coin cell battery. This low-power design ensures the keyer is highly energy-efficient and allows for months of usage before a battery change. The CR2032 battery is commonly available, so users can easily replace it without worrying about finding specialized power adapters or cables.

Supports Multiple Keying Methods

The CW Keyer & Trainer is compatible with a wide range of manual and automatic keys, including: Vertical straight keys Horizontal paddle keys Semi-automatic mechanical keys All types of automatic keyers

Whether you prefer to use a single paddle, dual paddle, or straight key, this device ensures seamless integration, giving users complete flexibility in their training and operation.

Speed Control and Adjustable Settings

The keyer allows you to adjust the keying speed easily by holding the speed button and pressing the dot or dash on the automatic key. This adjustable speed feature makes it easier for beginners to practice at a comfortable pace, while more advanced users can gradually increase speed for challenging practice sessions. Switching between manual and automatic keying modes is simple, just flip a switch to toggle between the two.

Visual and Auditory Feedback

To enhance the learning experience, the device includes both a beeper and a blue LED light that blinks in sync with the Morse code rhythm. This dual feedback system helps beginners maintain proper timing and rhythm while learning and practicing, while experienced operators can visualize their keying rhythm, creating a unique personal style that is both efficient and visually appealing.

Easy Setup and Use

Setting up the device is quick and intuitive. For training, simply connect the manual or automatic key to the corresponding input port. In keyer mode, connect the automatic key to the designated port and the radio to the output port. The device automatically adjusts for both keying and practice purposes, and toggling between settings is as simple as flipping a switch.

Why Did We Make It?

We created this CW keyer and trainer to address the needs of amateur radio operators and Morse code enthusiasts who require a highly portable, functional, and easy-to-use solution for both practice and operation. Many amateur radio operators face the challenge of carrying bulky equipment when traveling or operating outdoors. By designing this compact, battery-powered device, we’ve made it easier to practice Morse code and operate a QRP radio without being tied down to a desk or traditional equipment.

What Makes It Special?

The CW Keyer & Trainer stands out because of its portability, functionality, and ease of use. It’s incredibly compact and lightweight, yet offers a wide range of features that cater to both beginning and experienced operators. The dual feedback system (beeper and LED) sets it apart from other practice tools, making it easier for users to learn and maintain correct rhythm while eliminating common mistakes like QSD (bad keying technique). The added ability to work as a keyer for QRP radios without built-in keyer support makes it a unique tool in its category, offering great versatility for anyone passionate about Morse code.

Perfect for All Levels of CW Enthusiasts

Whether you're a beginner learning the basics of Morse code or an experienced operator aiming to improve your speed and accuracy, the CW Keyer & Trainer provides everything you need. Its design not only focuses on function but also on aesthetics, offering a visual representation of your Morse code rhythm through the blue LED light.

Technical Specifications:

Dimensions: 75mm x 75mm x 30mm Weight: 18g Power Source: 1 x CR2032 Coin Cell Battery Portability: Ultra-compact, easy to carry Compatibility: Works with all forms of manual and automatic Morse code keys, including vertical, horizontal, and semi-automatic keys LED Feedback: Blue LED light that blinks in rhythm with Morse code Beeper: Audio feedback that synchronizes with keying rhythm Keying Speed Control: Adjustable via speed button for easier practice