Arduino Applications in Amateur Radio
Find practical Arduino projects and technical references for ham radio, including antenna switches, tuners, SWR meters, and satellite trackers.
The Arduino platform offers hams a versatile and accessible way to build custom equipment and automate station functions. Its ease of programming and wide range of shields make it popular for homebrew projects, from simple utility tools to complex station controllers. Operators use Arduino boards to integrate various components, manage peripherals, and add intelligence to their radio setups without needing deep electronics design expertise.
Many hams leverage Arduino for antenna projects, such as automated antenna switches that decode ICOM CAT frequency data, or controllers for directional antenna arrays. The platform is also central to building test equipment like SWR meters and antenna analyzers. For satellite operation, projects like qrpTracker provide satellite tracking capabilities. Additionally, hams use Arduino for digital signal processing experiments, CW decoders, and even as a base for simple SDR receivers, demonstrating its flexibility across many amateur radio activities.
Sort:
Subcategories
- Morse Code (18)
-
Cheap AFSK TNC, APRS for everyone with arduino, BeRTOS and a STM32F100 chip by OM5AMX -
A homemade remote antenna switch made with an Arduino Uno by KK7S -
This project describes an ARDUINO based automatic antenna tuner, for an end-fed half wave (EFHW) antenna, working on 20 & 40 meter bands -
Setting up the Arduino DUE to run as an SDR software defined radio -
This Arduino project decode ICOM CAT frequency information and switch antennas according to preset values. RX and TX antennas can even be different, a project by ON7EQ -
Controlling an antenna tuner with an arduino board. The project includes movies, explanation and the arduino code -
A DIY Arduino LC meter project for measuring inductance and capacitance, offering step-by-step instructions for construction and calibration. -
Power and SWR Meter with dual bargraphs and sticky bar, using 2x AD8307 -
An interesting rotator interface that interfaces a pc to a rotor or rotator controller, emulating a Yaesu GS-232A/B and Easycom protocols, made with Arduino -
Build your own home made Antenna Analyzer with an arduino micro, or a cheeper one with a pic processor -
Easy to build CW decoder based on DSP Goertzel code. If you want to build a cw decoder without using other active components than an atmel 328, Arduino UNO, then this is sure something for you. -
Inline RF Power & VSWR Meter. A DIY meter 0 to 30 Watt with Average and Peak. Circuit Description, Arduino Nano software code and part list to DIY your own Digital SWR Meter -
GPS module for Yaesu VX-8DR/DE handheld transceivers with ublox NEO-6M chip and Arduino Nano. -
An interesting project about an Arduino-based frequency counter fot the Kenwood TS-520S -
Ham Radio applications with the Arduino micro-controller presentation -
Generic PI4 + CW + Carrier Arduino Beacon Controller with interfacing to Analog Devices AD9833 DDS AD9850 DDS, AD9851 DDS, AD9912 DDS , AD9913 DDS, ADF4350 and ADF4351 synthesizers, ADF5355 synthesizer, ADF5356 synthesizer, Radio modulated by an audio soft-DDS Reverse DDS, RDDS microwave unit, Silicon Labs Si5351A programmable clock generator, Silicon Labs Si570 programmable XO/VCXO, Texas Instruments LMX2541 synthesizer -
qrpTracker is a satellite tracking program that works on the popular and easy-to-program Arduino platform qrpTracker is meant for amateur satellite enthusiasts and computing hobbyists -
This sketch will read RF power and SWR from any SWR bridge, designed to work on VHF UHF bands -
Hy-gain HAM-IV rotator control with Arduino by OK1BIL -
Expeimenting with DSP digital signal processing on Arduino -
A DIY SWR/Wattmeter project utilizing an Arduino Uno shield, capable of measuring RF power from 2 to 200 watts and SWR across HF bands. -
Multi-sensor real-time temperature monitoring and logging system using Arduino -
An open source Automatic Packet Reporting System tracker based on Arduino by Javier Martin -
A multiplatform software oscilloscope and logical analyzer software that acquires data using an arduino or a parallax USB Oscilloscope -
An example of how to control a Yaesu FT-817 with an Arduino to make a multi-band CW beacon. -
Building an Open Source Arduino APRS Tracker with LCD & GPS ( SVTrackR ) -
This is an attempt to build an Antenna rotator controller using Arduino Mega 2560 with a nice user interface showing the actual position of the antenna. -
An interesting arduino project to work as an antenna tuner -
Arduino-based Automatic Amateur Radio Antenna Tuner -
An Arduino APRS project based on the real time OS BeRTOS -
Arduino Band decoder project available in KIT -
Inspired by Milan OK7GU, the goal is to build an universal antenna controller - for different types of rotor, different motor, encoder -
Homemade SWR PWR Meter based on Arduino -
A Yaesu rotator controller made with an arduino -
A multi-mode QRP radio beacon built around the Arduino. This radio propagation beacon transmitter project is presented by M0XPD -
A new multi-mode QRP radio beacon built around the Arduino. The beacon started with the usual lash-up on the bench, hooking the previously reported Wotduino and DDS Shield up to a driver and a transmitter module, as previously used for the Raspberry Pi beacon -
A UHF Frequency Counter up to 1 GHz, includes the Block Diagram , test sketch for Arduino/Genuino Nano -
Arduino automatic CW Keyer for amateur radio -
This article describes firmware and minimal hardware for encoding and decoding of on-air CW using an terminal/modem based on these controller boards. -
Arduino Digital Transceiver (ADX) is a low-cost HF transceiver for digital modes. This Arduino-based project, inspired by QDX, features four bands, including 80m and 20m, supporting FT8, FT4, JS8call, and WSPR. Designed for simplicity and affordability, it uses an Arduino Nano, SI5351 module, and CD2003GP receiver. The ADX project emphasizes easy procurement, construction, setup, and operation, making it an accessible option for QRP enthusiasts. The firmware update enhances functionality, including CAT control support. -
This Arduino library allow you to control various functions of Yaesu FT-857 through the use of CAT functions. This may work even with FT-817 and FT-897. -
A project to implement a simple and efficient CW Keyer and a side tone generator with Arduino -
An Arduino uno based project to control an MFJ 998 antenna tuner via Icom CI-V interface by VE1ZAC -
A controller for the miniVNA using an Arduino UNO and touch screen color graphic LCD display -
A kit Digital VFO with pre-soldered surface mount parts and burned-in firmware, a scratch build with Arduino Nano, C code with modifications, and a Silicon Labs si5351 PLL clock generator on a breakout board. -
An HF QRP CW RTX built around the Arduino open-source electronics prototyping platform -
This article introduces an Arduino-based QRP CW Transceiver designed for lower HF bands. The journey begins with the Wotduino, evolving from a keyer to a multi-mode beacon. The development includes a QRP transmitter and culminates in a receiver inspired by Roy Lewallen design. The transceiver, controlled through a control bus features a signal path, modulation, filtering, and adjustable frequency settings. Despite initial testing intentions, successful QSOs on 80 and 40 meters showcase its functional capabilities. -
This page presents the Arduino radio receiver project created by EasyEDA in 2024. It includes design drawings, BOM, and project details. The content is aimed at hams interested in building their own radio receiver using Arduino technology. The project is shared under a CC BY-ND 4.0 license, allowing others to replicate and modify it. The page also includes comments from project members, making it a useful resource for hams looking to explore radio receiver construction. -
This blog article introduces an updated repeater controller project utilizing the Arduino UNO. It includes a CW identifier, and the ID message can be customized using hex codes. The author offers a Windows command line program for easier message coding and provides a link for download. The controller features three adjustable timers for IDer, Timer-out, and Squelch-tail. The article also mentions the use of an audio switch to control audio levels between the receiver and transmitter. Detailed instructions and code files are available on the author's website for both version 1 and version 2 of the Arduino repeater controller. The project aims to enhance repeater functionality and audio management in ham radio operations. -
Network Analyzer on an Arduino Shield which covers from 0-72MHz using an Analog Devices AD9851 DDS chip -
Rotator Controller Using Arduino and PstRotator project by G4HSK -
Sketch for an Arduino and si5351 to implement a VFO, BFO, CW, keyer, and control -
This project hereby presented is a complete HAM radio simplex 'smart' repeater, built around a Motorola GM-350/950, Arduino NANO board and a WINBOND audio recording integrated circuit -
The circuit is based on two AD8307 log amplifiers, which are connected to the forward and reflected ports on a directional coupler -
An Arduino project to make it work as a KISS TNC -
An Arduino TNC modem project based on KI4MCW source code with pictures and schematics -
A vector graphic antenna analyzer project page by DC2WK demonstrating a project realized by DG7EAO includes, part list, schematics, and videos. -
Arduino code for buidling Yaesu VX8r Handheld Transmitter-compatible GPS. A compatbile GPS unit, made with open-source and generally available components, that can be used to proivde the position and velocity information for the Yaesu HT -
This page presents a project involving attaching an amateur radio transceiver to an Arduino to create a 'fox' signal for radio direction finding practice. This project can be used to practice direction finding skills by locating a radio transmitter in a hidden location. The project involves transmitting the station ID using Morse code and can be a fun and educational activity for students or hobbyists interested in radio direction finding. The author shares their experience with radio direction finding and provides instructions on how to build the project using a Baofeng UV-3R radio and an Arduino Uno. -
An Arduino-based automatic tuning system for small magnetic loop antennas, designed for contest operations. It uses PC software to monitor SWR and control -
A Programming-Free Automatic Arduino Antenna Switch project published on NCJ -
Make and automatic antenna tuner based on Arduino and using economic card. This ATU Project can be installed outdoors and controlled remotely by an rs485 link -
AX.25 Packet Modem homebrew project on Arduino -
An cheap homemade azimuth and elevation rotation system using an Arduino/AVR. -
Arduino/ATtiny Based (Ham Radio) ICOM CIV to Yaesu BCD Band Decoder. Build a ICOM CIV to Yaesu BCD Band to automatically band switch the Yaesu Quadra Amplifier. -
Arduino uno universal VFO/BFO with Si5351 and TFT touch screen for BITX like txcvr -
A stepper switch controller made with arduino by N3OX -
A voice keyer for Morse Code written for Arduino -
A DDS VFO using the Arduino Uno platform -
A four part article anout a digital rotator controller made with Arduino -
This module is an analogue and digital SWR and power meter/monitor, designed to replace analogue SWR and power metering in an AM Transmitter project. -
Cheap and easy to build digital modes USB interface for Ham Radio. The DuinoVOX Arduino powered digital modes USB interface for ham radio. -
The project is an AVR ATMega328P based AX-25 1200 AFSK Digital Repeater, suitable for APRS digipeating -
This blog post from KA7OEI covers the author's initial exploration into the world of Arduino, a popular open-source electronics platform. The post likely discusses the author's experiences, challenges, and successes with Arduino projects, particularly in relation to amateur radio or other technical hobbies. It may provide insights, tips, or inspiration for hams interested in incorporating Arduino into their own projects. The content is likely informative, personal, and geared towards amateur radio operators or electronics enthusiasts. -
An home made VNA made with Arduino Nano. This project features an LCD display 4x20 works from 1 MHz to 60MHz, can use bluetooth connection with Blue VNA android app. -
Controlling a rotator via computer can be costly, but a budget-friendly solution exists using an Arduino Nano and free software by Anthony K3NG. This setup allows for easy and enhanced rotator control, including screen and network management. Though initial software setup can be complex, pre-configured versions are available. Building and customizing the hardware interface is required, with comprehensive support provided by K3NG's resources. -
Iambino is a Iambic Keyer for Arduino running hardware containing an ATmega328 or ATmega32u -
An Arduino Based Antenna Switch For The IC-7300 that monitors the band voltage from the rear accessory socket on the IC-7300. Two RF antenna relays are used to switch to the appropriate output. -
This Arduino project explores long-range RF communication using EBYTE E32 1W LoRa modules (either E32-915T30D or E32-900T30D) paired with ESP32 microcontrollers featuring OLED displays. The setup leverages the modules' Semtech SX1276 chip with amplifier to achieve up to 1W transmission power—significantly more than the chip alone provides. Unlike other LoRa implementations, these modules include a microcontroller that simplifies interface through UART rather than SPI. The documented implementation includes proper wiring between components and Arduino code that configures the module, displays received messages on the OLED screen, and transmits messages every two seconds while keeping power consumption manageable. -
An Arduino based CW contest keyer addon, ideated and designed for the use in conbination with the K3NG Arduino keyer open-source firmware. -
An Arduino based remote monitoring system. The Remotino is a remote monitoring system based upon two Arduino Nano units RemotinoSampler and RemotinoViewer that are connected -
A project for a simple RTTY decoder based on Arduino UNO R3. Includes the RTTY modem source code available for download along to schematics pictures and references. -
A low-cost SWR meter project based on Arduino that works with AutoCap automatic antenna tuner for magnetic loop antennas -
In pursuit of enhanced station efficiency, the author describes crafting an Arduino-based smart antenna switcher for an SO2R setup. Faced with manual antenna switching challenges during contests, the project utilizes a Logos Electromechanical 4x4 Driver Shield and a Power Screw shield for seamless functionality. Despite its raw appearance, the automatic switcher proves indispensable in contest scenarios, prompting considerations for future improvements and standardization of station control protocols. -
A portable USB SO2R box made with Arduino -
This construction project is for anyone wanting to give this popular little radio a voice of its own. This Speech synthesiser reads out the current frequency, mode and menu settings whenever they are changed via the front-panel controls -
This is a remote antenna switch I use in my attic to connect transceivers in the basement to multiple antennas in the attic. The goal of this project is to be able to remotely connect one of the antennas in the attic to the only antenna cable available. -
This project involves the construction of a 5 Watt Morse code beacon transmitter that operates in the 28.200 to 28.300 section of the 10 Meter Amateur Radio band. The beacon controller uses an Arduino Uno microprocessor board to produce the three signals that control the transmitter. -
The PCB can produce a High Frequency RF signal in the range of 1MHz to 12.5MHz using an AD9833 Direct Digital Sequence (DDS) frequency synthesizer. The signal can be modulated with different Weak Signal modes such as WSPR, JT9 and JT65 using our Arduino 5V/16MHz Pro Micro software. -
An home made antenna analyzer made with Arduino Nano -
The Fuchs Antenna tuner with a resonant circuit as a coupler. The Fuch Antenna Tuner is providing a high-efficiency compare to a 49:1 transformer using ferrite . The Fuchs tuner is a resonating L/C circuit to step-up the impedance from 50 Ohm to the required 3k. The ATU is able to perform automatic tuning with the addition of a tiny Aduino Nano and a SWR bridge. -
A WSPR beacon project based on Arduino nano (atmega328P) based microcontroller -
This page provides a detailed guide on how to receive WWVB 60 KHz time signals using the Everset ES100 module with an Arduino Due microcontroller. It explains the background of time standards and the significance of WWV radio stations in maintaining these standards. The content is useful for ham radio operators interested in time synchronization, scientific research, navigation, and radio communications. The article is written by Keith Greiner, who shares his project inspired by his passion for the subject. For more projects by the author, visit the provided links.