Version 1.00

Parts list


Version 1.20

Parts list


What is it, and why would you need it?

A (voice, CW, RTTY) keyer is a tool to record and play back messages. When you are calling CQ, you don’t have to endlessly speak or send morse, the keyer can do that for you.

Many Icom radio’s like the IC-7300 have a built in voice keyer with 8 memory slots. However, you can only activate these via the touchscreen when you are in the keyer menu (obviously).
This keyer menu takes up 50% of the display, and prevents you from viewing other interesting screens, such as the extended waterfall or the audioscope.

With an external keypad we can recall up to 4 out of the 8 memory slots, without having the keyer menu on display. An additional advantage of an external keypad is that you can install it in a spot that is best accessible to you. In case of a contest e.g.: just next to your PC keyboard.

Connector Cable

For information about the connector cable, check out this blogpost: Icom External Keypad Connector Cable


Creative Commons License
This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Need help?

If you have any questions regarding the design, or how you can manufacture the PCB, feel free to let me know in the comments, or send me an email (can be found on
Interested in having an external keypad for your Icom radio, but you are not in the possibility to make it yourself, for whatever reason: don’t hesitate to send me an email.

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