CW Trinket Keychain for studying Morse code

Hello everyone recently received a CW Trinket from Rigexpert
a little helper in my morse code study

Click “Next” for details

Every HAM radio operator will sooner or later wish to study the morse code. It is possible to stay away from the telegraph bands for an infinitely long time, you can make QSO’s in digital mods, to shout loudly “CQ” into a microphone in SSB , but I always have desire to learn and recognize morse code and it has increased over the years.

So what is CW Trinket?

This is such a small keychain with dimensions 56x28x15 mm

A button is plased on the front and also there is an hole for the sound emitter.

The button is sensitive enough to press, it is quite usefull for the user with a quick speed of morse code transfer, but on the other hand the key fob can be selfpressed when carried in the same pocket with a smartphone for example, which sometimes causes erroneous switching on.

Inside of the keyfob is a board with a microcontroller, sound emitter, and battery holder CR2032.

Keychain on and off by long pressing button and accompanied by a special beep.

You can try tap calling CQ CQ UR5TLZ to get started. In response, the keychain will repeat your call sign then give it’s own call sign and end with the symbol “K” which means that the key is handed to you and your time to transmite.

To complete the QSO you have to repeat keyfob call sign and then your call sign and give a report such as “599”

I have not yet mastered the morse code, so I understand only some phrases of morse code, so I downloaded an Android application that recognizes the sound from the keychain.

Here’s a link to his app Morse Code Reader

Video that demonstrates decoding

If you type in a morse code, something that the CW Trinket doesn’t understand it will ask with the phrase “QRZ?”

CW Trinket has a long list of functions that can be controlled with a single button, some of which developers have kept secret to make a surprise for those who find them:

All the trinket control commands and settings begin with an exclamation mark (Exclamation Point, KW digraph) (– . – . – –)

!fq x – allows you to set the frequency of the trinket buzzer (x being the frequency in Hertz).

For example: !fq 5 – the trinket will be bleeping with a frequency of 500 Hertz.

!ech – echo mode. The key fob will repeat everything that you transmit to it by pressing the button.

!vol – allows you to increase or decrease the volume of the trinket buzzer. The process of changing the volume goes on in a circle.

!spd хх – the command sets the speed of the telegraph messages.

For example: !spd 20 – the speed of the telegraph messages will make 20 WPM

!test – switch to contest mode.

!sr – return to standard mode.

!ac ххухх – the command allows you to add up to 6 call signs to the trinket memory. You want the trinket to answer with the call sign of your wife or supervisor, don’t you?

For example: !ас Р5АА

!sw – the trinket will play the Star Wars melody.

As in my opinion quite interesting little thing. It is quite convenient to study the morse code during walk.

Leave a Reply