最近想手搓一根八木，该买的都买了，就差个网分了>!~~话说天分和网分有什么区别啊~~!< 正欲购买NanoVNA之际，忽然受到老HAM的极力劝阻，说两百的网分都是玩具，而且为了一根天线去买也不值得。所以来问问大家有没有二手的出售，或者是便宜点的购买渠道。感谢！

两百的网分都是玩具？那就买KVE或者KC 呗要么就买贵的要么就买你朋友说的玩具。。另外你问问你朋友，他用的是玩具还是啥。。身为老HAM 不让你买他肯定有啊借他的用不就得了

@"BG2EFX"#p48907 买个玩具总比没有强吧…

Nanovna用来看驻波什么的简单方便易用，测值也又有很好的日常使用参考价值，我的还是PDD买的呢，不照样用得好好的，如果日后要玩短波了，更加是必备工具，自己有时候得有自己的主见看自己要用来做什么. 若是日后还想拿来要搞搞高精度开发工具的话，你还真的听老炮的话，买最贵的

实验室用的网分价格不菲，便宜的也是用了十几年淘汰的了，精度也难保证，感觉是不如nanoVNA，简单测测。另外期待你的八木分享，我也在手搓中。

@"BG7RCA"#p48905 闲鱼淘宝看价格差不多的买就是了，再便宜的玩具也比没有仪表两眼一抹黑瞎做强

不如让老HAM给你推荐，如果负担不了那就老老实实买nanovna吧。

[upl-image-preview uuid=0d826945-5d41-4879-9425-70419331e02f url=https://storage.hamcq.cn/2025-01-05/1736093470-561547-screenshot-20250106-001022-comtaobaoidlefish.jpg alt={TEXT?}] 这个可以吗

啥样的不是玩具？业余无线电本身都是玩具

Looking to purchase a network switch.

BG7RCA

I recently decided to build a Yagi antenna myself, and I've already purchased all the necessary components except for the network (or matching section).~~So, what's the difference between innate talent and online skill?~~
I was just about to buy a NanoVNA when I suddenly received a strong warning from an experienced HAM, who said that the two-hundred yuan net meter is essentially useless and not worth buying for a single antenna. So, I'm asking if anyone has used ones for sale or knows of any affordable purchase channels.
Thank you!

BG2EWI

BG7RCA If the prices on Xianyu and Taobao are similar, just buy it; even cheaper toys are better than having nothing at all.

BH1KTJ

MINI1600

BG2EFX

Are all the 200 yuan worth of network shares just for toys? Then I'll buy KVE or KC instead.
Either buy the expensive one, or buy the toy that your friend recommended.
Also, ask your friend what they're using – a toy or something else. As an experienced HAM, I can assure you that he must have one.
I can just borrow it from him.

BG7RCA

BG2EFX It's definitely better to have a toy than not have one at all...

BA7NNC-JOE

The Nanovna is simple, convenient, and easy to use for tasks like measuring standing waves. The measurements also have good value for everyday use. I bought mine from PDD, and it works great. If you plan on using shortwave radio in the future, it's definitely a must-have tool. Ultimately, it depends on your individual needs and what you want to do with it.

If you want to acquire high-precision development tools in the future, then it's best to listen to experienced professionals and purchase the most expensive ones.

bd4unw

The price of a network analyzer used in the lab is quite high; even the cheaper ones have been in use for over ten years and are no longer accurate. It's difficult to guarantee their accuracy, so I find it better to simply use a nanoVNA for quick measurements. Also, I look forward to your Yagi antenna sharing; I'm also building one myself.

BD8BDT

Buy a Kexing instrument.

Liridice

Alternatively, let Mr. HAM recommend one for you. If you can't afford it, then just buy the nanovna honestly.

BG7RCA

Is this possible?

BI6OYU

BG7RCA This listing is just for the screen.

BG4IJK

BG7RCA It's not a device; don't buy it. It says so on top.

LCD screen, LCD screen, LCD screen. Please read carefully: I am selling an LCD screen.

BI1JNP

What kind of non-toy? A ham radio itself is a toy.

BG4IJK

If you plan to use shortwave in the future, consider purchasing a NanoVNA; it's practically essential for shortwave communication.

I don't recommend buying a NanoVNA if you only need it for making antennas, especially just one antenna. Instead, borrow one from a friend. If any of your friends have professional network analyzers, you can also visit their place and use their equipment to tune the antenna.

BG7RCA

BG4IJK I only decided to buy it because I had asked around and no one else wanted it.

BG7RCA

BG4IJK I'm sorry, I was wrong...

BG2EFX

It's not about making antennas.
The NanoVNA toy that my old friend, who's a HAM enthusiast, mentioned for 200 yuan/RMB is sufficient.
I've seen him use nanoVNA for many antenna measurements.

BloodBlade

I forgot where I saw someone testing it, but the nanoVNA performs well within the amateur radio frequency bands and its measurement results are comparable to those of professional VNA instruments. However, if you're really skeptical about spending around 200 yuan, you could consider buying a Keysight FieldFox, which is said to be very reliable.👍。

BG4IJK

BG7RCA This indicates that if you are using a radio, you need to have unlimited resources.

Buy it, buy it! Even if you don't need it later, you can still sell it.

BG2EWI

BG4IJK In general, radio equipment retains its value quite well. As long as you don't buy a notoriously unreliable model or damage it yourself, selling it used shouldn't result in significant losses.

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