Tag Archives: hamradio

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

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Frankentuner

I’ve been thinking for a while about how I might get my antenna to load up on 160m. It’s a 104′ dipole fed with ladder line. I decided to try connecting both sides of the ladder line together and driving … Continue reading

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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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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

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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

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My Foray Into SDR

I’m pretty easily distracted by shiny things. That’s one reason that things get stalled in my project queue. If an opportunity or project of interest comes along, I’ll indulge that and devote some time to it. I’ve been interested in … Continue reading

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