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Recent Posts
- QRP Labs QRSS/WSPR Kit (Part 5 – mitigation)
- QRP Labs QRSS/WSPR Kit (Part 4 – chasing the problem)
- QRP Labs QRSS/WSPR Kit (Part 3 – Testing)
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- QRP Labs QRSS/WSPR Kit (Part 1 – the Build)
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Tag Archives: ubuntu
QRZ.com running Ubuntu Server
Here’s an interesting interview with some history and behind-the-scenes information about the site qrz.com. QRZ.com is one of the largest sites in the world serving amateur radio. A quote from that interview: “The new QRZ runs the Ubuntu 64-bit server. … Continue reading
Buffer Bloat and network performance
This post is really well written and should probably be required reading for network geeks. I think it might explain some of the problems I was seeing before I dropped my DSL provider and moved to Knology cable, which I’ve … Continue reading
Beware Imposed Agility
A few weeks ago at a wedding reception I was making small talk, and was introduced as someone who “works for Canonical”. One of the people in the circle immediately said “OH!, you do Agile development! We’re training for that … Continue reading
Calibrating the softrock RX/TX Ensemble on Ubuntu
Continuing my exploration of SDR and the Softrock RX/TX Ensemble … You can catch the beginning of those posts here. The programmable oscillator on the softrock runs (in my case) at four times the desired mixer frequency. My unit is … Continue reading
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Tagged amateur radio, hamradio, sdr, softrock, ubuntu, ubuntu-hams
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New Ubuntu Lucid proposed kernel
The Ubuntu kernel team has prepared a new proposed kernel for Lucid (2.6.32-25.43), containing a large number of fixes. This is a larger number of updates than we would usually push at one time, but processing of the upstream stable … Continue reading
Softrock RX/TX Ensemble – receiver
My previous two posts are about the Softrock RXTX Ensemble board, and getting it built. After I got mine built, I had trouble finding software applications to use it. Applications are out there, it’s just that I couldn’t find them. … Continue reading
Softrock RX/TX Ensemble – hardware and building
In my last post, I described how I ended up finally starting with SDR. I’m experimenting with the Softrock RXTX Ensemble. This kit is a transceiver with 1 Watt output, definitely QRP. It features a USB interface which allows setting … Continue reading
