I love toys I guess and I especially like the design approach and philosophy Jim brings to the table. There's a few features that suggest improvement...

It appears the web site SSL certificate expired on June 22nd. He has been made aware.

My experiment was created to confirm and defend your original assertion the field values degrade 1/d in free space. I mentioned the concrete floor, a...

@artisan-radio Good point. Let's examine the same 2.5 MHz WWV antenna beyond 600m... This has the behavior of surface waves. I think the point o...

I will add, however, the simulated electric field strengths of an MF vertical antenna (The WWV 2.5 MHz in this example) has the following trend from 5...

The OP encourage me to test field strength vs. distance myself in an antenna chamber with concrete floor (to include effects of ground). I posted ...

CB is Part 95.

@richpowers Still playing with the SW300 with some focus on a local AM 20kW that clearly needs some help. I'm working with them on the problem and wi...

Will do. I'll probably divide up the tests into two groups: outside self contained units with their own antenna, and internal devices inside the ...

I'd consider the affordable YouLoop from AirSpy. I tested it extensively during the COVID shutdown both inside and out in the yard and remain quite i...

I'll throw in my article on radials...

I agree with the others here who suggest the power input rule means the last active (takes DC power to operate) stage. So here's a question... is th...

If you speak of radials orthogonal to the radiator, they do conduct current away from the feed point, hence absolutely radiate energy in the process. ...