Category Archives: Arduino

10GHz PA Using a Mini-Circuits PMA5-123 3W MMIC

Posted on December 12, 2025 by g4hsk

I first read about the Mini-Circuits PMA5-123 3W GaAs MMIC device on the UK-Microwave forum early this year. Thanks to the efforts of Kent – WA5VJB, Maarten – PA0MHE and Rens -PA3AXA  (and possibly others I’m not aware of) several … Continue reading →

Posted in 3cms, Arduino, Blog, GHz_Bands | Leave a comment

G3WDG-002 10GHz Receive Converter

Posted on February 15, 2025 by g4hsk

I recently finished building the G3WDG-002 receive converter, a project that I started around 30 years ago! At that time I purchased the G4DDK-004 LO and the G3WDG-002 kits to get started on 10GHz narrow band modes (SSB, CW). The … Continue reading →

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Black ADF4351 Eval Boards

Posted on January 24, 2025 by g4hsk

Having used a number of these readily available “black ADF4351 boards” along with an Arduino Mini-Pro and SynthShield PCB  in various projects I’ve learnt that not all the boards on sale are the same. They can differ both in component … Continue reading →

Posted in 3cms, ADF4351, Arduino, Blog, GHz_Bands, QO-100 | Leave a comment

10GHz Beacon and SA Down Converter

Posted on July 8, 2024 by g4hsk

This project is the result of wanting: A small easy to handle, self contained, frequency accurate 10GHz test source that ccould be used for such things as dish / RX alignment, used as an RF source in conjunction with a … Continue reading →

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10GHz Transverter Project – Part 5: Finishing Touches

Posted on June 7, 2024 by g4hsk

I’ve finally put the finishing touches to my homebrew 10GHz transverter (TVTR) and the lid of the die-cast box was secured for the first time with all six screws! This project came about for the following reasons: The desire to … Continue reading →

Posted in 3cms, ADF4351, Arduino, Blog, GHz_Bands, Mobile / portable Operation | Leave a comment

AD8317 + Arduino RF Power Meter # 2

Posted on March 28, 2022 by g4hsk

I built an AD8317 power meter a couple years ago. The AD8317 is specified for operation up to 8 GHz, but it provides useful measurement accuracy over a reduced dynamic range of up to 10 GHz. With suitable software and … Continue reading →

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QO-100 Experiments – New Down-converter

Posted on February 13, 2021 by g4hsk

Probably like most people starting out with QO-100 operation I initially used the Goonhilly QO-100 WebSDR to listen to the satellite down-link. This inspired me to experiment with an LNB, a 65cm offset dish, and a NooElec SDR module with … Continue reading →

Posted in 3cms, ADF4351, Anglian TVTR, Arduino, Blog, EME, GHz_Bands, QO-100, Satellites | Leave a comment

QO-100 Experiments – ADF4351 SynthShield

Posted on January 21, 2021 by g4hsk

I’ve recently used a number of ADF4351 modules in various projects. The last two modules have been used to provide a single fixed frequency output. An Arduino Nano running the F1CJN single frequency sketch is used to control the ADF4351. … Continue reading →

Posted in 3cms, ADF4351, Arduino, Blog, GHz_Bands, QO-100, Satellites | Leave a comment

An Arduino Based Four Event Sequencer

Posted on February 24, 2020 by g4hsk

When putting together a system using RF switching relays, Low Noise Amplifiers (LNA) and RF power it’s important that things are switched at the right time and in the correct sequence. This ensures that the relays do not actually switch … Continue reading →

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An Arduino Based Antenna Switch For The IC-7300

Posted on November 20, 2018 by g4hsk

Since purchasing the IC-7300 I’ve used it mainly on 4m and 6m with the occasional venture down onto the lower bands. With the Sporadic-E season and good conditions on 10m it highlighted one of the shortcomings of the IC-7300… it … Continue reading →

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