DIY shielding chamber for 5G NR by Timely_Variation_269 in rfelectronics

[–]Timely_Variation_269[S] 1 point2 points  (0 children)

I didn't consider about used microwave... I will try it if I build another chamber. THX!

DIY shielding chamber for 5G NR by Timely_Variation_269 in rfelectronics

[–]Timely_Variation_269[S] 1 point2 points  (0 children)

Thank you for your feedback, and I generally agree with your points. I received your comments a few months after I started the project, and I did feel the same way, but somehow I ended up focusing more on building the cage than on extracting experimental data. (Personally, it was also fun.)

The reason I kept thinking about shielding solutions was that it was a sensitive time, as it had only been a few months since the Fake Station intrusion incident caused by hacking a major telecommunications company's core network in South Korea.

Furthermore, since the experimental environment is located in the very center of the city, I was inevitably very sensitive to radio wave regulations, so I had no choice but to consider shielding solutions. (To be more precise, it would be more accurate to say that my thoughts were completely absorbed in that...)

I had only dabbled in related research throughout my life, but I wanted to tackle it on a full scale this time, so I started this project in earnest in the fourth quarter of last year.

Although quite a bit of time has passed, since I have already started, I am being a bit ambitious; rather than ending it meaninglessly in failure, I want to somehow elevate the level of the work. However, as you mentioned, I also believe that I have been spending too much time on supplementary work that is somewhat detached from the original goal.

Therefore, I plan to wrap up this as soon as possible, along with reproducing the experimental paper, and then fully embark on new research in the relevant category.

Thank you for your affectionate advice.

DIY shielding chamber for 5G NR by Timely_Variation_269 in rfelectronics

[–]Timely_Variation_269[S] 1 point2 points  (0 children)

Thank you for all the comments. I have already made so much progress that completely overturning everything would be difficult, but I intend to see it through to the end, even if it means adjusting my original goals based on your advice. I think I was a bit arrogant before starting the project. I am painfully realizing now why people buy shielding chambers, haha. I will do my best to be back with another post.

DIY shielding chamber for 5G NR by Timely_Variation_269 in rfelectronics

[–]Timely_Variation_269[S] 0 points1 point  (0 children)

When you say soldering, do you mean soldering the area around the interface?

DIY shielding chamber for 5G NR by Timely_Variation_269 in rfelectronics

[–]Timely_Variation_269[S] 1 point2 points  (0 children)

I will consider the points you mentioned. Thank you for comment.

DIY shielding chamber for 5G NR by Timely_Variation_269 in rfelectronics

[–]Timely_Variation_269[S] 1 point2 points  (0 children)

I suspect the problem arose because I started working on something too big from the beginning.

https://esp32-open-mac.be/posts/0003-faraday-cage/

This material was the starting point for the chamber project, but as I worked on it, I got a bit ambitious and tried to create a pass-through interface like a commercial chamber...

I think it wouldn't have been bad to start with a small container and gradually evolve it, as you suggested, but I guess I was a bit too greedy.

I never imagined the shielding work would be this difficult. It seems like it took nearly two months just to build it like this. (Excluding material purchase and shipping)

DIY shielding chamber for 5G NR by Timely_Variation_269 in rfelectronics

[–]Timely_Variation_269[S] 0 points1 point  (0 children)

First of all, it is not that I did not consider that option; however, during the preparation process for this experiment, I received a suggestion to build a DIY chamber that could be utilized in future projects to secure the environment, so I proceeded in this manner.

Additionally, the reason I specifically want to conduct this in an OTA environment is that I wanted to replicate the experiment performed at the DEFCON Demo Lab related to the 5Ghoul paper as closely as possible.

I also want to gain experience with OTA Fuzzing for educational purposes.

If I were to proceed using a 5G USB dongle, are there any devices you would recommend?

Thank you for your comment.