The article isn’t clear on one thing : was it an analog or digital signal ?
The results are entirely unsurprising if the signal was digital. Also, I’d like to see a similar test in an environment with more electrical interference, I think the unshielded materials would fare less well there.
This is a really old test. There are forum posts of the same concept and some news articles with the test that are so old that they 404 now. An unshielded coat hanger is the most common. And yes, this is done frequently with analog signals. No, you can’t tell the difference.
The article isn’t clear on one thing : was it an analog or digital signal ?
The results are entirely unsurprising if the signal was digital. Also, I’d like to see a similar test in an environment with more electrical interference, I think the unshielded materials would fare less well there.
This is a really old test. There are forum posts of the same concept and some news articles with the test that are so old that they 404 now. An unshielded coat hanger is the most common. And yes, this is done frequently with analog signals. No, you can’t tell the difference.