Impact of USB cable shield on noise
Posted: Tue Nov 17, 2015 8:44 am
Hi
Here's the results of a very simple experiment I did:
I chose two USB cables to compare (images are attached)
A 0.5 meter unshielded (blue one)
A 1.5 meter shielded (the other one)
Then I tuned to a local FM station. You can see the effect of shield on the noise. The picture with lots of noise (with RED waterfall) is for the blue cable.
All the parameters in this test were equal and unchanged.
Here's the results of a very simple experiment I did:
I chose two USB cables to compare (images are attached)
A 0.5 meter unshielded (blue one)
A 1.5 meter shielded (the other one)
Then I tuned to a local FM station. You can see the effect of shield on the noise. The picture with lots of noise (with RED waterfall) is for the blue cable.
All the parameters in this test were equal and unchanged.