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#1
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need construction articles for 2M/440 quads
I am looking for construction articles on how to build a 6 element 2 meter
quad antenna and a 440mhz 8 element quad antenna. Thanks, Kirk K7EKM |
#2
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for a 2 meter quad here are some dimensions at 146 MHz
element Total length one side distance up spreader Reflector 84.658 21.165 14.996 Driven 82.603 20.165 14.602 Dir 1 80.137 20.034 14.166 Dir 2 77.733 19.433 13.741 Dir 3 75.401 18.85 13.329 Dir 4 73.139 18.285 12.929 Dir 5 70.945 17.736 12,541 Distance between elements REF 1 to Driven 12.13 Driven to dir 1 10.51 dir1 to dir2 12.13 dir2 to dir3 13.75 dir3 to dir4 15.37 dir4 to dir5 20.22 All dimensions in inches. "Kirk Mohror" wrote in message ... I am looking for construction articles on how to build a 6 element 2 meter quad antenna and a 440mhz 8 element quad antenna. Thanks, Kirk K7EKM |
#3
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"Kirk Mohror" wrote in message ... I am looking for construction articles on how to build a 6 element 2 meter quad antenna and a 440mhz 8 element quad antenna. You may want to check the quagi out . The quads are usually more trouble to build and do not give any advantage once you go over 4 or 5 elements or so for vhf. http://commfaculty.fullerton.edu/woverbeck/quagi.htm I built a 220 mhz version years ago and it seemed to work fine. Lots beter than the CC 11 element yagi I compaired it with at the same height. |
#4
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That was probably back when CC designed all their antennas for through the boom elements and then built them with the
elements on top, or vice versa, making them wrong by about 10%. Typically had more "gain" off the back than off the front. Nearly put CC out of business. -- Crazy George Remove N O and S P A M imbedded in return address "Ralph Mowery" wrote in message k.net... "Kirk Mohror" wrote in message ... I am looking for construction articles on how to build a 6 element 2 meter quad antenna and a 440mhz 8 element quad antenna. You may want to check the quagi out . The quads are usually more trouble to build and do not give any advantage once you go over 4 or 5 elements or so for vhf. http://commfaculty.fullerton.edu/woverbeck/quagi.htm I built a 220 mhz version years ago and it seemed to work fine. Lots beter than the CC 11 element yagi I compaired it with at the same height. |
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