AFE822x arrives with everything you would expect. Ordering and shipping is fast. You will be using the radio in no time! Read more
AFE822x Design – Low Cost Dual Channel SDR
AFE822x design rocks. Its modern architecture includes a really neat Texas Instruments direct sampler, and an embedded ARM CPU for control and connectivity over USB or Ethernet. Read more
Exploring South Korea – A City with Soul
On our Asia tour, we saw Hong Kong and Beijing, but Seoul captured my heart. Exploring South Korea was well worth the time on our cruise. Read more
Afedri SDR-Net – Great Value from Israel
Want a new receiver? Alex, 4Z5LV makes a number of reasonably priced Afedri SDR-Net software defined radios. Let’s find out how well they work. Read more
About VITA 49 – Discovering Radio Transport Protocol
Why should you care about VITA 49? I may just be the next big thing in software defined radio. Here is a gentle introduction. Read more
Nagasaki Cherry Blossoms at Ground Zero
Perfect timing. During our visit to Nagasaki cherry blossoms bloomed at ground zero of the 1945 atomic bomb. Quite a contrast. Read more
SDR Spatial Filtering Demo – Watch It Work
This GNURadio SDR spatial filtering demo shows how you can eliminate local RF interference using coherent sampling on two radio channels with different antennas. Read more
Implementing a DSP Noise Canceller
A DSP Noise Canceller is easily the most useful Spatial Interference Filtering Technique for hams and shortwave listeners. Here’s how its done. Read more
Taipei 101 Damper Babies – Cute and Functional
Taipei 101 Damper Babies are a cute toy and a functional lifesaver. And they tell you a lot about creative Taiwan. Read more
Dual Coherent SDR Receivers – Current State
This article describes the current state of hardware and software solutions for coherent SDR receivers within reach of hams and hobbyists. Take a look. Read more