I shielded the GT-12, but the effect was not very good.

Kidio

2月买的GT-12想着过了一年怎么说BUG也应该修的差不多了，结果没想到还是有毛病。。。4月初被GT-12的屏幕干扰问题搞得烦躁不堪，在联系厂家无果在卫星群内吐槽时偶然被BI4MRE 有台看见并和我分享了他自己的屏蔽教程。[https://www.bilibili.com/opus/914004057473941527?spm_id_from=333.999.collection.opus.click]
于是看教程买材料自己搞了屏蔽。
材料很简单，40宽的双面铜箔胶带和40宽的高温胶带。
GT-12还是很好拆的，我用的工具是小米的套装螺丝刀。
拧下螺丝，卸下三个环后轻轻一撬就打开了，但是要注意断开屏幕排线，别把排线扯坏。

拆开后就是这个样子，主要分为机器主板、排线和屏幕主板。
看得出来，厂家的标签表明我的机器是24年1月出的厂。
根据教程在两层高温胶带之间夹了一层铜箔胶带，并根据教程露出了下端接地带和蓝牙天线与屏幕的挖孔，将其贴在了主板上确认了位置；屏幕接口位置上方一段要不贴高温胶带，方便排线接地连接用。（此处我左侧没有完全遮住主板，并且忘记下端接地带的屏幕方向不贴胶带。）

接下来给屏幕排线包裹一层铜箔胶带并在其上贴上了高温胶带，此处记得分清楚屏幕排线与主板排线方向。并在主板方向屏幕侧的铜箔上端留好接地段不贴高温胶带。并用铜箔胶带连接排线和屏蔽层用来接地。个人在原教程的基础上用高温胶带加固了连接点。

然后在机器主板上贴好高温胶带，避免发生意外损坏元件。记得避开接口位置。
然后可以简易组装一下看屏幕排线是否虚接。不建议此时按PTT，避免烧机。

确认没有问题后检查好机器内有无松动和胶带的碎屑。确认好屏蔽层的铜箔是否能够接触到机身的铝板.

没有问题后即可装机测试。
本教程并不能完全消除屏幕干扰，但是可以减弱屏幕的干扰。

搞之前静噪4、背光亮度二档并使用短天线靠近我的腿就会产生干扰，搞之后就没有这个问题了。

BG9IQW

Kidio What are the results?

BD8DLV

Could this indicate that the bright screen interference on the GT12 is entirely a design issue? I see that the Wouxun UV2Q also has a color display, but the disassembly video shows a complete shielding layer, so there is no such bright screen interference.

Kidio

BD8DLV Indeed, it is.

BD8DLV

Kidio I have used two GT12 units, one in front and one in the back. The first GT12 unit experienced screen interference. The second GT12 unit was used at 430._{I haven't encountered the 440 issue before, but I feel that the GT12 does have several problems, and the character recognition is also quite noticeable. Some people speculate that the problem with recognizing characters is because it intentionally delays turning on the noise reduction to avoid interference from the bright screen. In addition, this machine's decoding speed when receiving digital sub-audio signals is significantly slower…}

Kidio

BD8DLV I haven't encountered "Eat Character" yet, and the screen interference issue is really annoying.

BD8DLV

Kidio Anyway, I don't think the GT12 is worth it at all…

Kidio

BG9IQW It works, but the effect is average.

BG9IQW

Kidio Are there any upgrades available?

Kidio

BG9IQW No, I did implement a filter.

BH1AYY

Haha, it's up to consumers to find ways to deal with design flaws. This is so frustrating! Just like cars, new and exciting designs that attract attention should be approached with caution. I definitely won't be buying anything like this.

BD8DTM

Another disgusting thing about the GT-12 is that the S-band transmitter is actually fake.

BD8DLV

BD8DTM Yes, I saw a blogger (likely on Douyin) also mentioning this issue, saying that they experienced either full signal strength or no signal at all when using it previously.

BI3WKD

BD8DTM Are there any S tables? Where can I create an S table?

BD8DTM

BD8DLV The vendors are not responsible; they will only spend money on online traffic, without solving actual problems. Be cautious when purchasing such products.

xinghe

My GT12 did not experience any interference with noise cancellation enabled in version 1.3.5. However, I needed to enable it at least until level 5 to function properly when upgrading to versions 1.3.6 and 1.3.7.

BG5VLI

It's better to buy an 8800 and a good antenna instead of buying a GT12.

BI3WKD

BG5VLI My setup is GT12 + 770, and it seems to be working well; I can still communicate with a repeater located about 50 meters away, even though it's at the same elevation.

BG5VLI

BI3WKD The device I have sometimes has issues with character recognition, and its responsiveness seems a bit lacking. Perhaps it's just a one-off occurrence? However, the transfer function and dual-mode Bluetooth are definitely good!

BG6XVJ

I'm thinking of selling my Sennheiser headphones because I haven't been able to use them properly.

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