**开篇之前首先感谢BD4XNS李工以及BH3PTS荣老师在DIY过程中提供的技术指导** 此文就不详细介绍JUMA TX136了，有兴趣的可以自行了解，简单来说这是一个136kHz(2200m业余段)的一个DIY电台，发射功率最大50w，链接如下:https://www.jumaradio.com/juma-tx136 首先从外壳开始，原项目中的外壳只有贸泽有货，就一个普普通通的金属盒要400多大洋，很显然没啥必要，索性直接用嘉立创设计+生产了对于没有原PCB设计工程文件外壳设计我常用也觉得最好用的方法是:Gerber导入Kicad转成PCB工程项目，再导入到EasyEDA，手动复原ibom以及PCB的3d模型，再导入到嘉立创下单助手的铝合金壳体设计工具，根据3d模型进行挑选合适的壳体以及打孔设计图如下： [upl-image-preview uuid=f0c8da31-0990-451d-8099-d95802dd755b url=https://storage.hamcq.cn/2026-08-11/1786456546-706925-meitu-20260811-215527274.jpg alt={TEXT?}] 设计完成后一般不会直接送去生产，而是导出模型3d打印一个看看孔位合不合适，这里李工帮我打了一个装机测试还不错，然后可以送去生产了[upl-image-preview uuid=b605c396-e737-43d5-a10b-72246ae8a4a1 url=https://storage.hamcq.cn/2026-08-11/1786456634-969776-qq-pic-merged-1786456588295.jpg alt={TEXT?}] [upl-image-preview uuid=572d95d2-f309-42f7-89a1-e4ea75f472e4 url=https://storage.hamcq.cn/2026-08-11/1786456639-312463-qq-pic-merged-1786456598590.jpg alt={TEXT?}] 打样回来的壳体：[upl-image-preview uuid=474c0b99-abfe-4a9e-9f2e-b92cc8ccefaa url=https://storage.hamcq.cn/2026-08-11/1786456725-191284-qq-pic-merged-1786456712973.jpg alt={TEXT?}] 然后下一步是绕磁环，绕磁环是个需要有点耐心的工作，再装机，点亮，调试 [upl-image-preview uuid=5642cd1f-3da7-4533-b315-a48d2860360a url=https://storage.hamcq.cn/2026-08-11/1786457023-968632-screenshot-2026-08-11-22-02-28-16-9d26c6446fd7bb.jpg alt={TEXT?}] [upl-image-preview uuid=1bd1b4e0-f990-41e1-bc40-fb1de256a608 url=https://storage.hamcq.cn/2026-08-11/1786457035-974853-screenshot-2026-08-11-22-02-48-49-9d26c6446fd7bb.jpg alt={TEXT?}] [upl-image-preview uuid=18561d93-672d-44dc-a7ca-11653ceca452 url=https://storage.hamcq.cn/2026-08-11/1786457051-727968-mmexport1786453816931.jpg alt={TEXT?}] [upl-image-preview uuid=0838f13f-b451-4dbb-ae2d-5e84a9014bb8 url=https://storage.hamcq.cn/2026-08-11/1786457059-178702-mmexport1786453815023.jpg alt={TEXT?}] 硬件工作到此为止，下一步是验机山东省监测站验不了长波电台，无法出具验机报告，索性回到归属地进行验机临沂无委检测设备为安捷伦N9020A [upl-image-preview uuid=19391d5f-32aa-4f69-85a8-7a3545bd2081 url=https://storage.hamcq.cn/2026-08-11/1786457501-355429-screenshot-2026-08-11-22-09-12-78-99c04817c0de56.jpg alt={TEXT?}] [upl-image-preview uuid=1e3c1d8c-421d-432a-8e2c-d491ab7d26ea url=https://storage.hamcq.cn/2026-08-11/1786457507-380272-screenshot-2026-08-11-22-08-19-07-9d26c6446fd7bb.jpg alt={TEXT?}] 机器各参数检测优秀，测试项目频率容限频偏甚至在0hz与1hz摆动，连无委的工作人员也夸机器的频率相当准确杂散测试最大功率的频率分量为-43.8dbm，相较于机器本身的50w基波也就是47dbm，结果小于-90dbc，杂散测试也特别漂亮最后出具验机报告 [upl-image-preview uuid=0b29aeea-79f2-4aa5-b8e8-27c2e0567e7e url=https://storage.hamcq.cn/2026-08-11/1786458147-525091-qq-pic-merged-1786453685992.jpg alt={TEXT?}] 这或许是全国为数不多验机登记的长波台？最后完结撒花，把未来留给天线和2200m传播

[upl-image-preview uuid=51e12052-0e12-4edb-9a17-3aca165752f2 url=https://storage.hamcq.cn/2026-08-11/1786464241-359420-161a44017bfb5a4e25d217777b8a5763.png alt={TEXT?}]

这个天线得多长，1/4波长也得550米，再加感也得百米级别吧

@"BI4OAE"#p101554 可以参考外国ham的妙妙操作之超级大水桶层层环绕超级加感线圈天线（

一开始看到山东监测站，就在想是哪位山东的大神。一看到临沂，莫名就想到了KSR 再猛然一看，原来还真是爱搞事的KSR，这下没事了「手动狗头」

[2200m amateur segment] DIY and testing notes for JUMA TX136

BI4OAE

BI4KSR Thank you for the information. I understand that important communications should not be sent via personal email accounts.

BG8LQN

Could a 2200m antenna be used with a tower as a vibrator? I remember seeing something like that in Japan, where an additional matching component was required.

BG4LTW

Grounding the antenna👀

BI1TMQ-AK6MZ

Super Plus (e.g.,

BI4KSR

BI1TMQ-AK6MZ That's correct.

BH6BMJ

BI4KSR A power of 50 watts does not meet national requirements [doge].

BI1TMQ-AK6MZ

BH6BMJ The limitation is on EIRP, not PEP.

BH6BMJ

BI1TMQ-AK6MZ Oh dear, I'm sorry, I forgot to mention that there isn't any ham radio antenna in the 2200m band with a positive gain. Orz

BG8LZW

I believe this project has significantly filled a gap in the Chinese ham radio community's longwave capabilities. I have always been interested in operating in the 2200m band, but I lacked the necessary equipment, such as antennas. Perhaps I could build a Marconi-style antenna in a suburban park someday, and use it to achieve an EIRP of 1W.

BI4KSR

BG8LZW Yes, yes, I believe that Professor Rong of BH3PTS is the only active participant in the 2200m category in CN region over the past ten years.🤪

BG2NAO

I bet this antenna must be quite large.

BG8LZW

BI4KSR I don't know when someone last used a 2200m in the entire BY region, or even East Asia.

sophitia

膜, Teacher KSR!

BD1EIS

The "Good Guy" 2200m band is truly a niche area in amateur radio, not only are there few people who use it, but the equipment available is also very limited. As far as I know, the only machines that can operate on the 2200m band are the TX-136 and the European IC-7610, along with the SAMWAY TX2200A. The rest are likely all DIY projects.
In this frequency band, I estimate that QRSS and WSPR modes are used more frequently.
Additionally, I found an article from two years ago that might be helpful to you. (Perhaps you've already seen it?)
https://naturewind846.github.io/2024/136khz/