I have ordered the 16 core before the cheap 8 core and I still haven't received it.
Quick question Hakuzen, I have a multimeter but how do you measure resistance of the cables? A detailed description would probably bring out a lot more data out of cable users... Thanks
measurement of DC resistance of cables
1. calibrate your multimeter.
1a. set your DMM to measure resistance, mΩ range, if available.
2a. touch the leads one against the other. read resistance of them and note it. do it for any leads (point, alligators, etc.) you plan to use. you only have to do this once. choose the less resistance leads of each type available.
3a. if your DMM is able to use a reference for relative measuring (REL button or similar), you can set your lead resistance as reference.
2. measure resistance.
2a. set your DMM to measure resistance, mΩ range, if available.
2b. measure resistance (details, below).
2c. if you used relative measuring, the DMM has already substracted leads resistance. if don't, you have to subtract it to your measurement.
to measure 2pins TRS cables.
Tip is left signal, Ring is right signal, Sleeve is common ground. for example, to measure left path, touch or clip (i use low resistance alligator or flat clips for this, easier and more stable) tip of the jack with one lead, and signal pin of left side with the other.
to measure MMCX TRS cables.
you can measure L/R ground easily. one lead touches sleeve part of the jack, and the other, touches the external circle of the mmcx plug.
to measure L/R signal, you have to touch the inner small pin of the mmcx plug. depending of the leads type used, this can be complicated. point leads make it easier in this case. i use clips, so i add an mmcx to 2pins adapter of known resistance (tiny) to measure signal more comfortably.
to measure when TRRS balanced jack in the cable (2.5mm, 4.4mm; remember this is different to TRRS single end+mic jacks)
you have to know which is the balance norm used for the cable. the most used is:
tip: R-, ring1: R+, ring2: L+, sleeve: L-. (negative are cold -inverted- signals, positive are hot signals; no ground needed nor available, except a screen braid connecting the mass of the plugs in cables with RF/EMI protection).
resolution.
10mΩ (two decimal digits) is desired (1mΩ would be superb, but not usual).
usual cheap DMMs use 100mΩ (one decimal digit) resolution. too much error in both leads and cable measurements, but can be used to get a gross idea.