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可喜可贺。欢迎国产的越来越多的精品呈现在广大ham面前，让我们也渐进、摆脱垂直、鱼竿加长线等简陋、落后形式，顺应了时代的发展步伐。短波无线电运动是古老的，但是令人感激地的是许多默默无闻爱好者的钻研和奉献精神，才使得我们的业余生活丰富多彩，推动了amatuer radio在中国的普及和发展，赋予了时代的特征。
yp 3 performance data
20m-6m range including warc bands!
1kw input
3 element portable yagi
boom, (3.65m)， (4.87m) total length elements
collapses into a small 36" travel bag! (included)
only (5.5kilos) in weight
between 6 & 15dbi forward gain
20m phone 14.200 swr 1.04; f/b 7.43; gain dbi 6.31
17m phone 18.120 swr 1.14; f/b 17.1; gain dbi 9.37
15m phone 21.150 swr 1.21; f/b 15.95; gain dbi 9.05
12m phone 24.940 swr 1.06; f/b 16.37; gain dbi 9.9
10m phone 28.300 swr 1.18; f/b 23.37; gain dbi 12.72
6m phone 50.150 swr 1.11; f/b 16.04; gain dbi 13.17
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二单元的八木水平都没达到,我早放弃了,建议boom长度也可调,这样才有实足的三单元八木的水平,一个dp都有好几个dbi了.
