哈罗CQ火腿社区 - 天线和铁塔 - DX-LB天线需要天调和balun吗？

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只看楼主倒序阅读 0楼发表于: 2009-04-06

该天线是美国alpha delta公司的产品，（http://www.alphadeltacom.com/pg1.html
网站上说“
low band dipole covers 160-80-40 meters with an overall length of only 100 ft. antenna performance and 2:1 vswr bandwidth is site dependent and varies with height above ground and surrounding objects. the typical bandwidth is:
160m – 20khz • 80m – 40 khz • 40m – 300 khz
full band coverage can be accomplished with an antenna tuner. built with insulated 12ga. wire, stainless steel hardware and uses the model delta-c static protected center insulator and cin end insulators. use coax or open wire line and configure as a dipole or inverted-v.”
照它这样说，“full band coverage can be accomplished with an antenna tuner”，它需要一个天调喽？另外它需要配1：1的balun吗？

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只看该作者 1楼发表于: 2009-04-06

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该天线是美国alpha delta公司的产品，（http://www.alphadeltacom.com/pg1.html）
网站上说“
low band dipole covers 160-80-40 meters with an overall length of only 100 ft. antenna performance and 2:1 vswr bandwidth is site dependent and varies with height above ground and surrounding objects. the typical bandwidth is:
160m – 20khz • 80m – 40 khz • 40m – 300 khz
full band coverage can be accomplished with an antenna tuner. built with insulated 12ga. wire, stainless steel hardware and uses the model delta-c static protected center insulator and cin end insulators. use coax or open wire line and configure as a dipole or inverted-v.”
照它这样说，“full band coverage can be accomplished with an antenna tuner”，它需要一个天调喽？另外它需要配1：1的balun吗？

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给的链接打不开，没有看到天线的形式；

天线看英文是一个160-80-40 m d.p天线，但是不知道是如何实现的

我想多波段的天线，既然是成品可以不用天调的，修剪好即可。天线是否能如愿，跟您的架设高度，和环境都有关系；

另外既然为商品的dipole,d.p天线是需要巴伦，但是看不到图，不知道是否随机提供。