Iambic Morse Code Keyer & Decoder – Assembled & Tested Standalone Unit

A special thank you to Scott Baker for sharing this brilliant project. All credit for the design and firmware goes to him.

Whether you're an amateur radio operator brushing up on your CW skills, a portable operator building a lightweight field kit, or a maker fascinated by Morse code, the Iambic Morse Code Keyer & Decoder delivers a powerful, standalone solution in one compact unit.

Unlike software-based decoders that lag or require complex setup, this dedicated hardware device is ready to go out of the box. It has been fully assembled, tested, and calibrated before shipping, so you can focus on sending and decoding, not soldering or debugging.

---

Dual-Function Powerhouse: Keyer & Decoder

This unit does more than just send tones. It serves two essential roles:

As a Keyer:

• Connect an external iambic paddle to send Morse code manually.

• Alternatively, trigger your transceiver directly from stored messages — perfect for repetitive calls, test tones, or beacon transmissions.

As a Decoder:

• Feed paddle input into the device, and watch as your dits and dahs are translated into readable text.

• The crisp OLED screen displays decoded characters in real time, making it an excellent learning tool for new operators.

---

Store, Edit & Recall Messages — No Power? No Problem.

Built-in EEPROM storage means your messages stay saved even when the unit is powered off. You can:

• Record custom messages (great for CQ calls, QSO templates, or emergency alerts)

• Edit them directly through the menu system

• Send any stored message with a few button presses — the unit will key your transceiver automatically

No need to retype or reprogram. Your library of messages persists.

---

Intuitive Menu System – Two Buttons, Full Control

Forget complicated button combos or hidden functions. The entire feature set is accessible through a clean two-button menu interface. Navigate, adjust, and save settings without a computer.

Complete Menu Options at a Glance:

All changes can be saved permanently. Power cycle the unit, and your speed, volume, iambic mode, and messages are right where you left them.

---

Designed for Real-World Operation

Every detail has been considered for smooth on-air or practice use:

• Iambic Mode A/B support — compatible with most standard paddles

• Adjustable sidetone lets you practice silently or monitor your sending

• Key swap feature is a lifesaver if you prefer a different paddle orientation or are left-handed

• The OLED display is clear and readable in both bright and low-light conditions

---

What's Included in the Box

You will receive:

• 1 x Fully Assembled Iambic Morse Code Keyer & Decoder unit

• Rigorous pre-shipment testing — each unit is powered on, keyed, and decoded before it leaves our workshop

Note: External iambic paddle, power supply, and transceiver connection cables are sold separately to allow you to use your preferred components.

---

Technical Specifications (Summary)

• Speed Range: 10 – 40 WPM

• Display: OLED

• Storage: Internal EEPROM (non-volatile)

• Sidetone Frequencies: 600 Hz / 700 Hz

• Volume Levels: 3

• Iambic Modes: A and B

• Key Swap: Yes (dit/dah reversible)

• Menu Navigation: 2-button system

• Assembly: Fully assembled & tested

---

Who Is This For?

• Ham radio operators wanting a portable, ready-to-use CW keyer/decoder

• Morse learners who benefit from real-time visual decoding feedback

• Field day / POTA / SOTA operators needing a compact, low-power message sender

• Makers & educators demonstrating Morse code without a PC

• Backup ops — keep this in your go-bag as a secondary keyer or decoder

---

Final Notes & Acknowledgments

Once again, all credit for this excellent design goes to Scott Baker. This listing offers a fully assembled, pre-tested hardware build of his open project — saving you the time and effort of sourcing parts, soldering, and troubleshooting.

Just add power, connect your paddle or transceiver, and start sending.

Order yours today — assembled, tested, and ready for the airwaves.