bhauth comments on $250 prize for checking Jake Cannell’s Brain Efficiency

bhauth 15 May 2023 11:40 UTC
2 points
0

The amount dissipated within the 30-meter cable is of course much less than that, or else there would be nothing left for the receiver to measure.

Signals decay exponentially and dissipation with copper cables can be ~50dB. At high frequencies, most of the power is lost.
- Steven Byrnes 15 May 2023 12:01 UTC
  2 points
  0
  Parent
  Sure, I guess the “much less” was a guess; I should have just said “less” out of an abundance of caution.
  
  Before writing that comment, I had actually looked for a dB/meter versus frequency plot for cat8 Ethernet cable and couldn’t find any. Do you have a ref? It’s not important for this conversation, I’m just curious. :)