Category Archives: 3cms

QO-100 Experiments – ADF4351 SynthShield

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

QO-100 Experiments – LNB Modifications

I have been using a Goobay 67269 LNB with a small Horn antenna on 10368MHz for a while to monitor beacons via rain-scatter. This was a fairly basic setup, the Chaparral horn had been cut-off and the LNB mated to … Continue reading

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Enhanced USB-to-Serial PTT Interface

Many of the modern transceivers today support direct USB connectivity to your shack PC. This USB connection typically enables 2-way audio and CAT control allowing more or less full control of the transceiver, including PTT keying. Where CAT control for … Continue reading

Posted in 23cms, 3cms, 70cms, Anglian TVTR, Blog, EME, GHz_Bands, QO-100, Satellites | Leave a comment

Fun on 10GHz – 2 ‘Rain-Scatter’

I’m still what some might call a novice when it comes to the 10GHz band. It’s a band that’s like no other that I’ve operated on, and I’m hooked on it. I’ve recently discovered first-hand the effect of rain-scatter at … Continue reading

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Fun on 10GHz – 1

Over the last 20 years or so I’ve rarely operated my radio equipment away from home. This has changed since I’ve caught the “microwave bug” and got started on the 10GHz band. My 10GHz setup comprised initially of just a … Continue reading

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10GHz – Frequency Accuracy and Stability

One of the key things that I have learnt from my EME activities is that frequency accuracy and stability is very important. My current 10GHz equipment comprises of a DB6NT G4 Transverter (TVTR) and an ICOM IC-706 transceiver for the … Continue reading

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