DIY Yagi, listen to everyone gathering

There have long been home in QinXian aircraft antennas and everyone at home when QSO lively, originally used in the unit do not know U V segment segment line does not? Spring Festival holiday a little time at home, coupled with the twelfth lunar month to see New Year Celebration postings, is hands-on time.
        First, prepare two φ4 copper rod, 80CM long 2CM × 4CM long stainless steel tube, five gates beans (old bicycle brake parts),50-5 cable a few meters. Commenced. . . .
        1, with the antenna BG9ABT formula, calculate the transducer, the director, the length of the reflector, the length of copper rod machining.
        2, calculated oscillator pitch, stainless steel square tube on top hit five φ8MM holes in the sides of the five pairs of corresponding holes to play φ4
        3, buy a little gate bean hole, drill bit sets, then assembly, welding debugging, do not say on the map


成型.JPG 连接.JPG γ匹配.JPG 馈电.JPG 测驻波.jpg 驻波.jpg 接手台.jpg

Spring Festival at home the afternoon did not go out, assembled antenna analyzer measuring VSWR debugging can be reduced to about 1.2, immediately took over the station holding the antenna (a bit like a satellite QSO uh), point Changzhi direction, clear voice immediately came out, Collecting BG3SFW of signal 59, as if he went home outside, but CQ of the N side, no one can Collecting my signal.
      This morning again, just put the antenna on the pressure in the bookcase can Collecting BG3TCQ hosted in frequency signals and his couplets and BD3SZ Liu's blessing, but I could not open the trunk, depressed ah, I analyze reasons First, my position low on the second floor at home also 5 meters high, two hand sets is too small power 4W, try it later frame antenna, hum ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~

 

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