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Saturday, 12 June 2021 16:21

Solar Data Featured

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Buy RF Front End Board Kit for EU1KY Antenna Analyzer


David Richards Blog

Dave Richards AA7EE

  • An Inline RF Step Attenuator for QRPp Work
    I don’t need to explain the attraction of low power operation; if you’re reading this, the chances are that you are already a convert. I’ve been operating with low power ever since first being licensed in the UK in the late 70’s as G8RYQ, and then G4IFA. One of my first rigs was a homebrew […]
  • The GM3OXX “Oxo” Transmitter
    As well as the small stash of finished projects that grace my living space, I also have two small boxes containing various boards. Some of them are boards from part-finished projects that didn’t work. For whatever reason, I ran out of steam and, instead of troubleshooting them, put them carefully into a small box along […]
  • Ugly Construction!
    Here’s a little project I put together on a whim about 18 months ago. It was my tribute to the unlicensed (i.e. pirate) beacon cluster around 4096 KHz. There were several of them operating in full force, with powers ranging from around 100mW to a watt or so a few years ago. Their heyday was […]

Frequency VFO synthesizer Microb v.4

Frequency synthesizer Microb v.4 (Microb v.4S)

This looks pretty awesome. Might have to get one.

Manhatten Construction si5351 VFO by AA7EE

si5351 VFO by AA7EE

This si5351 Manhatten style constructed VFO is really slick

uBitx v5 Un-boxing