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Invisible airwaves crackle with life Amateur RadioStretched WA5VJB Cheap Yagi for 70cmDesign rationalization proceeded much the same as for the 2 meter 10 element Yagi. The boom in this case was a length of 1x1 trim,primed and painted to protect it from the weather. The driven element was cut and formed from 1/8" brass rod; the other elements were cut from aluminum fence wire. The antenna had its first acid test during the January 2009 VHF Sweepstakes. I did nearly as well on 70cm as I did on 6 meters,and that's with just 10W on 70cm vs. 100W on 6 meters. I netted one guy clear down around Fort Pierce,right on about 100 miles away. I can't wait for the June and September contests,where VHF/UHF propagation is generally much better. |