What do you need to make a radio transmitter? There are builds that work with just a couple of transistors. But how about a GPS-disciplined small signal beacon? You can actually get the job done for ...

There are many ways to test HF antennas ranging from simulation to various antenna analyzers and bridges. However, nothing can replace simply using the antenna to see how it works. Just as — ...

WSPR’s biggest selling point is you can do it on the cheap. It’s easy to set yourself up for not much more than $100 and often a whole lot less. Share on Facebook (opens in a new window) Share on X ...

AN MH370 expert believes it would take “one final search” to find the missing jet and put the world’s biggest aviation mystery to rest ten years on. Retired British aerospace engineer Richard Godfrey ...

A BBC documentary investigating the disappearance of flight MH370 has reexamined the theory that Weak Signal Propagation Reporter (WSPR) radio signals could help to locate the missing aircraft in the ...