Category Archives: Arduino

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 →

Posted in Arduino, Blog, IC-7300 | Leave a comment

Constructing another K3NG Rotator Controller

Posted on November 24, 2016 by g4hsk

I recently spent a day helping a friend setup his new rotator and single 8 element yagi for EME operation. The weather was kind to us and after a few hours work we had everything aligned as best we could.  This … Continue reading →

Posted in Arduino, Blog, EME | Leave a comment