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On Oct 16, 2:50?pm, art wrote:
On 16 Oct, 04:16, Denny wrote: Let me second Richard's comments about radials needing to be some specific fraction of a wave - not.... Just put down the radials you can manage... If it isn't a perfect circle around the antenna, don't even think about it, put the radials down and enjoy your antenna.. Don't measure them, just pace them out from the antenna, cut and secure the end, step sideways, secure another end and pace back to the antenna, repeat... Whatever you get down will work... Read, K3LR's comments about putting up a low 160 inverted L for an impromptu contest while on vacation, having just two 1/4W radials and working 40 some states and a bunch of countries... So, assuming you can get down 20 or more radials under each vertical, the 4 square will work... If you could get down lots more radials the 4 square will work a bit better on weak signals (strong signals won't notice how many radials you have down) If you could get down 120 'full wave' radials, the 4 square will work the very best it can be (roughly 2 ohms series resistance on the ground circuit)... But after 50 radials of random length, you will be hard pressed to tell any difference between that and the 120 radial 'perfect' ground plane... cheers ... denny/k8do Exactly! All you are doing is providing a low impedance to ground so the return current gets back to transmitter ground instead of the travelling up the outside of the coax. Myths are really hard to put down Art- Hide quoted text - - Show quoted text - Hi Tm I have a 40 meter 4 square special on my web site if you would like to check it out. I also have guyed 80 meter verticals ,They are 1/2 the cost of the freestanding ones. Contact me if you have any questions. TOM N9ZV |
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