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Yes Bob85, what you describe here is what I see with my 1/4 radiator Marconi when I compare it to my I-10K while both are over very good soil conductivity in my area. According to ARRL Hand Book, this area shows 30 millisiemens/meter conductivity and that is very high. The I-10K still typically shows a better local RX signal on my Signal Reports, but not with every station---plus the differneces are also very marginal at best and not nearly as varied as some have previously reported. The only thing that I can say to help explain about my result is the soil conditions---just as you described.

 

It would be interesting if everyone reporting their antenna comparison results would also included the condition of the soil in their area, or describe generally speaking what the soil around the antenna looks like. I have attached a picture of the ARRL Map of the US for your reference. You can open the image into another window and enlarge and see every detail.