No propel like me know it dose not relay meter as a long as it is sufficiently high and specified.People like you will complain why not higher, why not 2k or 600 Ohm.
Now im sure we are not talking about the sam thing, and you are wrong.It is not a common mode choke. A common mode choke filters signal lines (in common mode).
A ferrite only increases the impedance on the outside of the cable and does do anythingt to the signal inside the shield.
How many turns till a ferrite bead magicly and suddenly turns into a coke
Actually its quite a common methode for HAMs to make "BALUNs"
https://www.nonstopsystems.com/radio/frank_radio_baluns.htm
round number... i don't care as long as its specified and a view orders of magnitude bigger then all the other things we try to measure.Why 1k
not so Important but would nice to be specified.when using a 1k source what load should be used ?
With an high source impedance you can accually calculate the capacitance per cable by Looking at the corner frequency in the FRWhy not just measure capacitance per meter and you can calculate the FR at any source resistance you want
But i'm also fine with your suggestion.
Why would there be an need to?Only FR bit also distortion
Test with and without magnetic or electric fields at which strength and why at a particular strength ?
All the measurement can be done Independently....
On, can just ignore that noise rejection is intresting porperty of a cable and that its dependent on its resistanceThat's the problem with 'adding' additional measurements.
or that capacitance can meter.
But then the test is not very conclusive.
If the test is that way that a wet string (or realy) bad cable can pass the test without an notice
but the bad cable would cause practical problems then the test is not very revealing?
Maybe interesting as Emission test for VW
Why not discuss it here in public first? so people can have an actual discussion about whats sensible and contribute there ideas.Just write a proposal with tests for Amir.
Don’t know if this is an actual proposal of idea?amir just connect a 1V trafo across the screen
Its not very practical to implement since the current would be undefined and limited by the cable resistance.
I don't think its a sirius suggestion (correct me if i'm mistaken) so i will not take the time explain why that's not a good ideal.
Between cables comparable noise rejection.what would this tell you
because its not easy and not needed to compere cables. but if you/amir want to go trough the extra trouble.Why not inject the proper way and calibrated using a clamp
I don't see an huge benefit an absolute numbers, relative is fine to me.
Common mode current picup/rejection over frequency.What would this test show you ?
It's more easy to do and control but it should give the same result.Why not inject common mode currents with a clamp ? At least then it is done the proper way and controlled ?
if it dose, of this method's is sufficient
Commen mode current... you know "ground loops"What would be a real world situation
No, that's not need and would not give new information that can't be calculated.Would the short also have to be replaced with say 50 Ohm, or your 1k ?
Because its cheaper and Possible to draw conclusion from non standards tests.Why do any non calibrated and not controlled 'McGyver' tests.
To remind you the only test able to show a difference between the cables was a McGyver test