marxy's musing on technology

My sister Jane once asked for a horse because "everyone in her class has a horse".  Sometimes it feels that way with 3D printers. ...

Little "Arduino" projects around here often require a display and connection to the internet. ESP32 based boards are an obvious ch...

I founds some wonderful macOS SwiftUI code by Mark Erbaugh that implements the Icom remote access code. He's got the basics going and I...

I've been following the progress of an open source SDR transceiver, the T41-EP , from Albert Peter and Jack Purdum for some time. It...

The QDX works brilliantly with WSJT-X but I have struggled to get it working with Fldigi on Linux. I'm pleased to report that I just h...

The QDX is a tiny FSK mode transceiver from QRP Labs which works amazingly well. This week, new firmware was released which improves transm...

If you have solar photo voltaic panels it's good to know how much is being generated so you can choose when to use power such as the tum...

DMR digital radio is intriguing but confusing. I live at a location where I can't reach any DMR repeaters so I'm using a pi-star ho...

Facebook pointed out that I've been appearing on Marc Fennell's Download This Show for over ten years. Since COVID and my move to co...

The QDX v3 kit arrived yesterday and today I've finished the build. This transceiver is tiny, about the size of a playing card deck. It...

Stephen, VK2BLQ, alterted me to SSTV activity on 7.171Mhz. I ran qsstv on Linux and easily had some contacts. Leaving it running means that ...

In the past I've used Chirp to load up a Baufeng radio with all of the repeaters in NSW and now that I've moved to Victoria it'...

A QRP Labs QDX digital transceiver kit is on order but in the mean time I was looking for information on the technique Hans uses to modulat...

My internet here at Drummond isn't great. It's NBN Fixed wireless. While the download speed is OK I experience packet loss and have ...

Here at my low-noise country lair the storage shed I use for my ham radio shack was going to get very cold now that winter is coming. I'...