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Monthly Archives: January 2020
QO-100 Experiments – 2400MHz Pipe-Cap Filter
Over the years I’d seen a number of projects that were using one or more pipe-cap filters. They looked as if they should be fairly simple to make so I thought I should try one to help reduce the unwanted … Continue reading
Posted in Blog, GHz_Bands, QO-100, Satellites
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QO-100 Experiments – 2256MHz Local Oscillator
I chose to use an ADF4351 based synthesizer module to generate the 2256MHz local oscillator (LO) needed for my QO-100 QRP transmit converter. This is controlled by an Arduino Nano. Having already used one of these modules for the 54 … Continue reading
Posted in Blog, GHz_Bands, QO-100, Satellites
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QO-100 Experiments – QRP Transmit Converter
Having spent some time listening to the QO-100 satellite using the Goonhilly WebSDR facility and my own temporary receive solutions, I decided it was time to try generating some RF and get a signal up to the satellite. I was … Continue reading
Posted in Blog, GHz_Bands, QO-100, Satellites
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