新买了NanoVNA，测量短波天线效果都还不错，但是测量手台VX6R自带橡胶天线的时候UV双段驻波非常高，在这两个频段校准VNA也无济于事，vna和天线之间加一端馈线（并且带着馈线重新校准）也不行，求问是这个天线本身驻波高，还是我测量方法有问题🤨谢谢[upl-image-preview uuid=5f877a0f-c017-4dd4-836f-972e2919daf3 url=https://storage.hamcq.cn/2025-05-01/1746104313-969187-img-4851.jpg alt={TEXT?}] [upl-image-preview uuid=12ffc257-601c-485c-bec4-abd521ef5b6f url=https://storage.hamcq.cn/2025-05-01/1746104314-73844-img-4850.jpg alt={TEXT?}]

方法有问题 https://forum.hamcq.cn/d/2827

@"Ken"#p63500 哈哈哈哈哈神了，我找个易拉罐代替试试

@"Liridice"#p63499 这就改！

我也买了这个，用废手台做了一个工装，一开始测还挺好，结果看了一个校准视频学着校准后怎么测都是无穷大，折腾了一天退货了。

How to correctly use a NanoVNA handheld antenna analyzer?

BH9DFB_AI6YY

I recently purchased a NanoVNA and the measurements of shortwave antennas seem to be working well. However, when measuring the VX6R's built-in rubber antenna, the UV double-band standing wave is very high. Calibration with the VNA in these two frequency bands also doesn't help. Adding a feedline between the VNA and the antenna (and recalibrating with the feedline) doesn't work either. Is it possible that the antenna itself has a high standing wave, or could there be a problem with my measurement method?🤨Thank you.

Liridice

The method is flawed.

https://forum.hamcq.cn/d/2827

BH9DFB_AI6YY

Liridice That's what I intend to do!

Ken

手台天线测试需要有模拟地网环境。
我做的这个： https://forum.hamcq.cn/d/4859
用旧的UV手台壳改的、里面有金属框结构的可能会更准一些。

BH9DFB_AI6YY

Ken Haha haha haha, I'll try using a can instead.

BH6SCG

I also bought this, and I used it to build a jig. It worked pretty well at first, but after watching a calibration video and trying to calibrate it myself, I couldn't get any meaningful readings. I spent a whole day troubleshooting and then returned it.

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