QWWERTY: ja blbec! porad jsem premyslel kde se mi bere ten sum v mericim systemu, a nenapadlo me ze to muze jit pres opticky kabel, protoze ho nemam stineny! A ta firma Alpha Design Labs na to prisla:
"The cable achieves extremely high noise isolation in a RoHS-compliant sheath and black nylon yarn braid finished."