ADX is an Arduino based Digital Modes Transceiver.

ADX - is abbreviation for Arduino Digital Xceiver.

ADX is a mono band (actually quad band) digital modes optimized HF transceiver that can cover four pre-programmed bands one band at a time by swapping Band LPF Modules. It can work on 80m, 40m, 30m,20m, 17m, 15m and 10m bands and can operate on four of the most popular digital modes, FT8, FT4, JS8call and WSPR.

ADX now supports CAT via emulating KENWOOD TS2000 HF Transceiver with 9600 bps,8,1 Serial comm. CAT controls Band and Mode changes.

My goal with this project is to design a simple HF Transceiver optimized for operating on Digital modes:

Simple to procure – meaning not effected by chip shortage

Simple to build – 2 modules, 2 IC’s and 4 Mosfets!

Simple to setup and tune – One simple calibration procedure is all needed.

Simple to operate – Plug in ADX MIC to soundcard MIC input and ADX SPK to PC soundcard speaker input and we are good to go with any digital modes Software.

Dirt Cheap – Costs less than 25$ to get all parts and PCB if we exclude ridiculous shipping costs!

Plug in a USB cable between ADX Arduino and your PC, Select Kenwood TS2000 with 9600bps,8,1 setup as your CAT rig and you will have CAT control on ADX!

For ease of following which parts to solder while building Main board of ADX, Interactive BOM File - ibom_ADX.html file is a great help. Just run that file on Microsoft edge and follow each highlighted component and solder one by one. This interactive BOM was prepared by Gilles DELPECH - F1BFU. Thank you Gilles!

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