去B站上面看视频说可以买那种馈线线材然后自己接头，优点是便宜，方便控制长度。但是tb上都是接好头的馈线，应该去哪里买呢？

也不是呀，搜搜“同轴馈线”，出来的大多都是按长度卖，不带头子

也是淘宝啊。可先少买点便宜的练手，练好了再买好线。我也处于练手阶段，买的是RG58-50-3的馈线。

@"[未知用户]"#p48336 10米50-5只比50-3贵8块，我现在在犹豫要哪个…

@"Bg2gKg"#p48336 10米50-5只比50-3贵8块，我现在在犹豫要买哪个…

@"BG7RCA"#p48361 在线比较长的情况下，UV段用50-5比较好，注意电缆接头要与线径匹配。我也是新手，仅供参考。

@"[未知用户]"#p48361 再看看50-12才六块多一米

现在发现铜包铝发泡馈线是真香，除了硬一点，弯曲半径不能太小以外，无论重量，插损还是价格都完爆所谓纯铜馈线。

磁航的线感觉还可以，直接买价格也还算划算

How to buy unheaded cable (wire)

BG7RCA

I saw a video on Bilibili that said you can buy pre-made cables and connect them yourself. The advantage is that they are cheap and easy to control the length. However, all the cables I see on Taobao are already pre-connected. Where should I buy them?

BG4IIT

That's not right either. When you search for "coaxial cable," most of the results are sold by length, and they don't include connectors.

Bg2gKg

It's also on Taobao.
You can first buy a small amount of cheaper ones to practice with, and then buy the good cable once you're ready. I am also in the stage of practicing, and I bought RG58-50-3 feeder cables.

BG7RCA

Bg2gKg The 10.50-5 size tires are 8 yuan more expensive than the 50-3 size, and I'm currently trying to decide which one to buy...

BG5ELQ

Bg2gKg RG58 and (SYV-)50-3 and SYV-50-3 are two different types of cables. SYV-50-3 is a national standard single-core cable, while RG58 is a multi-core cable conforming to US standards.

BA7NNC-JOE

There are a lot of seafood available at the market.

BG7RCA

[未知用户] The 10.5m 50-5 set is 8 RMB more expensive than the 50-3, and I'm currently deciding which one to buy...

Bg2gKg

BG7RCA

When comparing UV cables over long distances, using 50-5 is a good option. Also, make sure that the cable connections match the cable diameter.
I am also a beginner, this is just for reference.

BI4PMQ

[未知用户] Let's also look at the price of 50-12, which is around 6 yuan per meter.

Bg2gKg

I overpaid; I bought it for seven…

BH7JUO

I've recently discovered that copper-clad aluminum foil foam cable is fantastic. Besides being slightly harder and having a limited bending radius, it outperforms traditional pure copper cables in terms of weight, insertion loss, and price.

BD8DFK

The Magnavox cable feels okay; the price is also reasonable when purchased directly.

CQ-BG8LTU

Buy 50-5 directly.
The 10.5m x 5m and 10.5m x 3m I purchased are approximately the same size when laid out.
The portability is the same.

ba7jmo

On TB (Taobao), I bought a shielded cable from "Ba Ge Cable" – specifically, a 50-ohm shielded feeder with galvanized coating. While it's more expensive, the interference protection seems to be decent.

Bg2gKg

@BG5ELQ #p48456
Thank you for the reminder. I did indeed mix up RG58 and the national standard previously.
I checked, and according to GB/T 14864-2013, cables that have the same classification, insulation, and sheath are considered part of the same cable series, regardless of whether they have a single conductor or multiple conductors inside.
If I have misunderstood, please correct me.

BG5ELQ

Bg2gKg SYV-50-3-42 is likely the national standard model for RG 58 C/U, but the "50-3" designation typically refers to a single-layer shielded single-core cable, such as SYV-50-3-4.

Bg2gKg

BG5ELQ When it comes to specifying models, it's too technical for me. I didn't pay attention to these details before, but after comparing, I found that the wire material and quantity of SYV-50-3-42 are the same as RG58.

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