With a network of 400 software defined receivers in your browser, you can easily do TDoA Direction Finding on signals across low, medium and high frequencies. Here’s how. Read more
Category: Software Defined Radio
WSPR Propagation Reports Worldwide
WSPR propagation reports are really useful in checking ionospheric activity. Get started by using WSPR on OpenWebRX internet connected monitoring stations. Read more
SDR Console Version 3.0.13 Improvements
SDR Console Version 3.0.13 brings some neat improvements, especially in signal strength and SNR meters. Check it out yourself. Read more
Sound Card Radio – Our First ADC
Recently, Guy Atkins mentioned his first software defined radio receiver, the FlexRadio SDR-1000. In particular, he mused about trying to get this gear to work with different PC sound cards. Read more
Guy Atkins Perseus Recollections

Guy Atkins Perseus activities became well known to the DX community in 2008. Recently, I asked Guy to provide some recollections about this wonderful receiver. Read more
Perseus SDR Benchmark – 11 Years On
I have been using my Perseus SDR Benchmark for 11 years. It remains a great performer for reception below 30 MHz and my “go to” receiver. Read more
Radio Spectrum Watching Expectations
So, are you achieving your radio spectrum watching expectations? Let’s take a look at the details of display optimization.
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SdrDx Spatial Filtering with Afedri Receiver
I finally got around to SdrDx spatial filtering. The phasing control in SdrDx software works really well with my Afedri AFE822x. Read more
Multiple Receiver Monitoring with SDR
Multiple receiver monitoring is the new normal with software defined radio. Here is how your SDR accomplishes this magic. Read more
Watching Signal Amplitude – Why DFT Uses Windowing
Watching signal amplitude is easy on software defined radios. But accurate DFT displays need to be cleaned up with windowing. Here’s why and how. Read more








