4. Hardware

4.1. Power Switch

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Right of unit with power switch

The power switch is on the right side of the unit, move the switch forward to turn on the unit, and push away to turn off.

4.2. Morse Key socket

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3.5mm jack plug

On the Right side is a 3.5mm stereo style socket into which you plug your morse straight key or paddle.

  • Shield is wired to the common ground.

  • Ring is wired to dash side of paddle or not connected

  • Tip is wired to dot side of paddle or straight key

4.3. Charging

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Back of unit showing charging lights

If you observe the screen begin to flicker then it's a sign the battery is getting low. Plugin to recharge the battery.

The unit can continue to function while recharging.

The Morse Trainer has a 18650 Li-ion battery inside. This will run the unit for around a day. This battery can be recharged via the USB-C socket on the left side. At the back a red light is displayed while charging and blue when the battery is fully charged.

4.4. NRC unit

A Morse Trainer unit has been dontated to the NRC (National Radio Center, Bletchly Park). It's on the front reception desk for anyone to practice their morse code. If you can't find it please ask a member of staff.

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NRC demo unit with paddle and morse reference chart

The paddle is also 3D printed, details of making your own paddle can be found on Thingiverse https://www.thingiverse.com/thing:7023246