此前我一直使用长线天调搭配随机线构成天馈系统，但是在近期的使用中越发注意到效率低下的问题，所以开始研究端馈。在找寻过程中发现了K8DX这款很不同寻常的存在，看商品介绍支持8波段，并且架设方式很多样，而且是无损匹配，但这款天线由于过于复杂，产量很低，我未能找到更多的相关实操信息，所以想问问玩过K8DX的友台实际效率怎么样，毕竟这天线也不便宜，想了解一下先，以及他的盒子到底是什么原理，看起来很像天调？最后是不同模式下的耐受功率是多少

小盒子可以调容和调感，相当于天调了，因为制作材料的原因，停产了

@"BG5ELQ"#p72787 对，就是卖的很贵，但闲鱼挂二手的比全新还贵（🤣）

性价比很高，如果动手能力强的话，可以[猛击这里开搓](https://bd6mm.cn/blog/2019/11/duan_kui_shi_pi_pei_he_de_zhi_zuo_yu_shi_yan.html)

想效率高我劝你放弃，说它多波段方便确实没错。想效率高就用偶极及其变种天线或者指向性天线。

端馈，用4波段的即可，虽说波段少些，但常用波段都有了，而且效率也优于8波段。

Has anyone used the K8DX antenna? I'd like to hear about your real-world experiences with it.

Shiro

Previously, I had been using long-wire directional antennas in combination with random wires to create a Yagi-Uda system. However, recently, I've become increasingly aware of the problem of low efficiency, so I started researching end-fed systems. During my research, I came across the K8DX antenna, which is quite unusual. The product description states that it supports 8 bands and has various mounting options, as well as lossless matching. However, due to the complexity of this antenna and its low production volume, I haven't been able to find much practical information about it. Therefore, I would like to ask fellow users who have experience with the K8DX antenna: what is the actual efficiency like? After all, this antenna isn't cheap. I also want to know how its box works and whether it resembles a Yagi-Uda antenna. Finally, what is the maximum power that can be tolerated in different modes?

BG3LGO

The small box can adjust both volume and sensitivity, effectively mimicking the settings of the original device. However, due to the nature of the manufacturing materials, production has been discontinued.

BG5ELQ

BG3LGO Also, there is...

Shiro

BG5ELQ Yes, it's true that they sell for a high price, but the used items on Erniu are actually more expensive than new ones.🤣）

BD6MM

Excellent value for money; if you have strong DIY skills, you canStrike here to activate.

BH7HSM

If you prioritize efficiency, I advise against it. While its multi-band capability is indeed an advantage, for high efficiency, consider using dipole antennas or directional antennas.

redeva

Using a single 4-band, instead of multiple bands, is sufficient. Although it uses fewer bands, it covers the commonly used bands and also has better efficiency compared to an 8-band system.

BH3XZT

It has good results.

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