[Amps] QRO operation into a 80 meter vertical

[Jim Brown]

On 2/21/2014 6:25 AM, Mark Beckwith wrote:
> How do you measure current in radials (Sorry I'm sure that's a dumb 
> question, but I don't know how to measure current in radials). 

In addition to K2VCO's response, let's add another dimension to the 
question. A radial is part of the antenna, and like any antenna, the 
current varies along the antenna (near zero at the open end, maximum a 
quarter wave from the end). There's plenty of published work (careful 
good science) showing that the current in most real world radial systems 
does not divide equally between the radials, but depends on what's near 
each radial. I've learned a lot studying N6LF's excellent website on the 
topic of radial systems. Something like ten years ago, I also found some 
great stuff on the ARRL website where a couple of guys measured current 
at many points along multiple radials. I don't know if it's still there.

73, Jim K9YC