前段时间刚把A证考下来，也成功设台跟当地ham通联。因为工作原因，在户外时间较少，卫星也没时间上，近期买了个小k收音机，发现天线差点意思。单位里虽然出门少，但是材料多啊，附近也比较空旷，各种各样的铜线，焊台等工具材料，但是手里的《业务无线电通信》天线篇发现太深奥了。这才来请教下有经验的前辈们，怎么把手里的材料利用起来呢？或者是给点思路，给点视频学习借鉴一下，非常感谢！！！

本人超爱折腾！！！在线等！！！

单单收听的话长线天线比较合适，如果有人问起来还可以说是晾衣服的hhhh 之前有看过国外有人是在室内使用的长线天线，是把电线围着天花板走了一圈只是不知道效果怎么样

@"YofoaStudio"#p28640 谢谢，明天就给拉上试试看😂

我楼顶的20米长线天线和窗口的1.2米拉杆天线比，其实差别也并不是很大，不会有楼顶天线能收到，窗口天线收不到的情况，楼顶天线在增强信号的同时底噪和干扰也增加了，实际收听效果差不多。环线天线也是一个不错的选择，但最好不要用有源的，也是放大噪音。

@"Yuluoxk"#p28622 满脑子都是xxx呢

@"Kepler"#p28687 @"YofoaStudio"#p28640 这个思路好，回头在屋里拉一圈试试

I don't have a B license and want to listen to shortwave radio. How should I build an antenna?

Kepler

I recently passed my A license exam and successfully set up a station to communicate with local ham radio operators. Due to work commitments, I don't have much time outdoors, and I haven't had time to install a satellite dish. Recently, I bought a small K-band receiver and found that the antenna is quite effective. Although I don't leave the office often, there are many materials available, as well as various copper wires, soldering irons, etc. However, the "Business Wireless Communication" section of my existing antenna manual seems too complex. Therefore, I am seeking advice from experienced seniors on how to utilize these materials effectively. Or, if possible, I would appreciate any guidance or video tutorials for learning. Thank you very much!

Kepler

I really love tinkering! I'm waiting here.

Yuluoxk

我给你几个方向(个人见解
1.小环(有源/无源) 门槛挺低的，我之前用在sdr上试过，效果还可以
2.长线(端馈) 省心，多波段，剪一段电线拉直就行了，绕个巴伦连上还能发射
3.GP/DP 自己能做买个拉杆做个手持GP也行，做不了全长就加感，做好了还能留着给以后的短波机发射用(照着MA01抄就行)

Kepler

Yuluoxk Thank you!

SuoYuC

Yuluoxk I'm just thinking about xxx all the time.

YofoaStudio

Simply listening to a long-range antenna is suitable; if someone asks, you can also say that it's for drying clothes.
I previously saw examples of long antennas used indoors, where the cable was run around the perimeter of the ceiling.
I just don't know how it will work.

Kepler

YofoaStudio Thank you, I will try it out tomorrow.😂

Bg2gKg

Kepler

YofoaStudio This is a good idea. I'll try it out inside the house later.

dxs660

When comparing the 20-meter long antenna on my roof and the 1.2-meter pull-out antenna at the window, the difference is not that significant. There won't be a situation where the rooftop antenna receives signals but the window antenna doesn't. In fact, the rooftop antenna enhances the signal while also increasing background noise and interference, resulting in similar listening effects. A loop antenna is also a good option, but it's best to avoid using active ones, as they amplify noise.

Hangying

SWL enthusiast

BG9JOO

Likewise.

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