[Sticky] SPDIF DIGITAL CABLE

Ethernet BER is 1E10^10, and that's a REALLY small number. Seldom do we lose bits in serial digital or Ethernet systems. Errors are a result of the DA and AD decisions that impact ringing and other errors but the digital stream once converted by the filters on the cable are super, super reliable. It is the cable ends where the problems lie.

The SPDIF cable's are designed for pure digital, no analog. The copper or silver plated copper signal wires are heavily shielded (better than 100 dB SEED tested noise isolation) and have exceptionally low RL. RL is Return Loss into a FIXED 75-ohm termination load. The loss from RL can be viewed as a form of attenuation as the signal isn't applied across the load and requires a perfectly matched cable impedance to the resistive load and across frequency.  RF level SPDIF coaxial cables should not ever be compared to low frequency designs, they share nothing in common except maybe both being a coaxial design. Don't use the SPDIF cables for your analog.