准备在这个角的位置安装一根钻石X-200的天线，想直接安装在这个角钢上面目前在考虑如何做防雷的问题，8平方的镀锡铜纺织扁线够用吗 2.5米应该是超出大楼的避雷范围了，我心里有点没底，大家有没有更好的方案 [upl-image-preview uuid=4395a3fc-fff2-4e29-8863-6cab02ad8145 url=https://storage.hamcq.cn/2026-06-24/1782286998-673263-cc819b94755f89e1548b2ffb8e345131.png alt={TEXT?}] 馈线可以直接从百叶里面走到我家 [upl-image-preview uuid=10a6efe5-7520-4ae8-8534-b2d606e17be9 url=https://storage.hamcq.cn/2026-06-24/1782286992-78341-87f1befe8768f344a59558226b232dde.png alt={TEXT?}]

这个位置需要注意防雷啊

@"BG9OWJ"#p98305 目前就是担心防雷

@"BG5GDP"#p98309 我用50-7的馈线，馈管不好施工，计算了一下大概30米

我只说一句话人品防雷

@"BG2EFX"#p98324 哈哈，虽然十多年周边都没有被雷击的记录，就怕万一

@"BA8BAK"#p98320 避雷针、馈线防雷接地、同轴避雷器，至少得弄一个，不然引雷入室可不好玩。

@"BG9OWJ"#p98341 嗯，目前我能考虑到就是用铜编织带连接到大楼避雷接地线上去准备请个资深ham来指导我，

@"BA8BAK"#p98342 最错误的做法。。。如果公共接地效果不好，BINGO~ 你就挨批了本来批不上你你硬要和人家来个亲密接触你要的非要接，最好是自己做个接地。。

Is it suitable to install a UV antenna here?

BA8BAK

准备在这个角的位置安装一根钻石X-200的天线，想直接安装在这个角钢上面

目前在考虑如何做防雷的问题，8平方的镀锡铜纺织扁线够用吗

2.5米应该是超出大楼的避雷范围了，我心里有点没底，大家有没有更好的方案

馈线可以直接从百叶里面走到我家

BG4KGU

The installation cost seems quite high.

BG9OWJ

It's important to be aware of lightning safety at this location.

BA8BAK

BG9OWJ Currently, my main concern is lightning protection.

BG5GDP

This antenna can start at 20 meters.

BA8BAK

BG5GDP I used a 50-7 feeder cable, but the installation was difficult due to the poor quality of the cable. Based on my calculations, I estimate that approximately 30 meters of cable is needed.

BG9OWJ

BA8BAK You need at least one of the following: a lightning arrestor, a shielded cable with grounding, or a coaxial lightning arrester. Otherwise, you risk being struck by lightning, which could be dangerous.

BI4PTE

BA8BAK I previously used a 4-meter long antenna, with a total of 50 meters of cable. My home radio transmits at 50W, but only 3W reaches the antenna section. All the signal has been attenuated and lost.

BG2EFX

I'll just say one thing: Integrity protects against risks.

BA8BAK

BG2EFX Haha, even though there haven't been any lightning strikes in the area for over ten years, I still worry about it happening.

BA8BAK

BG9OWJ Well, currently, I can consider using a copper woven strap to connect to the building's grounding system.

I'm planning to get in touch with an experienced ham radio operator for guidance.

BG2EFX

BA8BAK The worst thing to do...
If the grounding effect is poor, then you will be penalized.
You were trying to get away from me, but you insisted on having intimate contact with someone else.
Ideally, you should do it yourself, rather than relying on others.

BA8BAK

BG2EFX The cost of doing it myself is too high; it's for a building with 33 floors.

BA4QBK

There's a pre-installed lightning rod at the top. You can try to extend the existing lightning rod by 1 meter, with your antenna 50 cm away from it and 50 cm lower than it. That should work.

BA8BAK

BA4QBK This seems like a good approach.

BA8BAK

BA4QBK I asked an AI, and it seemed like there might be legal issues involved...

BA8BAK

BI4PTE Based on my calculations, I have approximately 30 meters of cable. I am using a 50-7 type cable.

BI4OAE

Recommendations on how to install and use it, especially during thunderstorms where physical disconnection is the safest method!

BG9PQO

I moved from the 2nd floor to the 1st floor and then up to the 12th floor, covering approximately 50 meters. I connected to a public lightning arrester and used a coaxial lightning arrester. However, it was still necessary to disconnect during thunderstorms for safety reasons.

BA4QBK

BG9PQO It wasn't a case of disconnecting during a thunderstorm; instead, I would unplug it after use and throw away the cord.

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