Data for building a CW Decoder (hardware)

 Data for building a CW Decoder (hardware).


1. Dedicated PCB data

Software used: KiCad 9

1) Circuit diagram

Circuit diagram (V2-3) (binary kicad_sch)

Circuit diagram(V2-3) (pdf)

2) Pattern diagram

PCB pattern (binary kicad_pcb)

Pattern diagram (V2-3).jpg

3) Garber

Garber(V2-3).zip


2. Bill of Materials

Bill of Materials.xlsx 

This is a BoM (parts) list I used, and same or similar parts I found in DigiKey, etc.
Please note footprints may differ from that of I used, and you may need to change PCB patterns/Garber.  

3. Assembly Manual

Assembly Manual (V2-3)


4. 3D Data of the Dedicated Case

Software Used: OnShape

Dedicated Case (V3R2) 3D Data (STL)    (For 50mm x 86mm LCDs)

Case and Accessory parts.jpg

Terminal and Label Locations --> Please refer User's manual


5. 3D Data of the Accessories

Power_SW2.stl (Power SW button)

Touch_pen_holder_3.stl (Touch pen holder)

thread_hole1.stl (Strap hole)


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Support Site of CW Decoder by JL1BDL

  This is the Support Site of CW Decoder developed by JL1BDL in English.  CW Decoder developed by JL1BDL was published in Jan/2026 in Japan. And it was very well received for its  high performance with very low parts cost . It is completely  Free  and  all Data to build it are available  from this site. For the detail of this CW Decoder, please visit the  Original Support site  (in Japanese) using your translator in the Browser. (It gives good translation than that of myself!! :-)  If you find this CW Decoder is " Good " or " Like it! ", I am happy to have your kind contribution. (Like buying a hamberger to your friend.) I prepared some key data in English below.           User's Manual can be downloaded from  here .           Data for building CW Decoder (hardware) is  here .           Data for building CW Decoder (software) is  here...
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