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This topic always seems to stir things up. I sense some disappointment in my reluctance to share every detail but I assure you it's unfounded. As Marconi suggests everything that can be learned about this antenna is accessible with the Vector design. Even I don't feel there is any significant differences in performance between the antenna Sirio custom manufactures for me and the Vector they sell directly. If you need to confirm this then simply extend the .75 wave Vector to .82 wavelength and you got what I got but for your band.


Any of the tubing diameters can be altered by at least 25% before it makes any noticeable difference in the electrical wavelength or bandwidth. I'm using the same diameter tubing as the Vector which proves to be very robust since only the first 9 feet of this tubing is needed. With respect to the angle of the cone, if the radials and loop are made with 1/4 wavelength conductors it's only possible for the structure to form one angle when assembled.


Today, most patents are best at making lawyers money. Indeed they give you legal rights to your product but they do nothing to stop others from stealing or copying. The US government can't stop China from stealing their secrets and property off the internet so none of us has a chance in hell of protecting anything when their government sponsors and supports theft. China lies and says we're exaggerating and since China owns us, the problem only progresses.


The "selected / elected" here have such little nads left they can't even slap Chinas hand anymore much less take action (did I say that?). We already can't stop China from stealing, poisoning our kids with lead toys, killing 1300 dogs with poisoned treats (they got the cats last year), contaminating our food and collapsing our economy by making everything we buy so every dollar we spend goes there. Now if we need to do something like take action, we will quickly have nothing. Could you imagine a Chinese embargo? LOL, that's why we can't make a move....daah.