50 ohm vs 75 ohm vs 125 ohm coaxial cable

[amirm]

I am curious if amir has or could make some measurements about it i mean also with 50 ohm terminated 75 ohm coaxials that would be very interesting.

Can do....

 

[Chrise36]

Can do....

Nice...you read everything despite all this work? How do you manage this? I think your equipment and methodology can not be mistaken. It will show what is happening.

 

[amirm]

Nice...you read everything despite all this work? How do you manage this?

Don't have a life otherwise.

 

[Chrise36]

Right...hahaha. So when do you think you can have some results?

 

[Speedskater]

Have you tried with 50 ohm cable?

In the case of a short 16x44.1 SP/DIF cable (lets say under 3 meters/10 feet) a 50 Ohm cable will work just fine (so will a 125 Ohm cable).
Only in the case of long cables (well over 10 meters/33 feet) is the 75 Ohm impedance important.
Note that AES 3id cables have a ±5% spec, but they often carry much more demanding signals than 16x44.1.
This if from an old 2007 Steve Lampen, Belden note.

 

[Chrise36]

The problem is people make a huge thing about it while for home it just does not matter. And next time i will be buying a coaxial without second thoughts. It is just a video standard they used for economic reasons and the rca implementation is the worse.