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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

  • 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 […]
  • Modifying the Tut 80 for Varactor Tuning and More Power
    Back in 2009/2010 the Arizona QRP Scorpions released a little kit designed by Dan N7VE, called the Fort Tuthill 80. It was a QRP CW transceiver, with a direct conversion receiver and a transmitter capable of putting out about 3W. It caught my imagination, and I just had to build it. I have never had […]

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