Microphone wire is mainly used to connect a microphone and sound equipment, because of its very weak voltage, so the wire shielding is particularly important.
Here are some of the ways the introduction screen:
1, the copper wire around the package: the general use of copper wire around the top of the inner being encountered around the music, the mask prone to adverse conditions, most of the parts used in a short distance from the microphone line;
2, woven copper wire: the wire to the way many woven into one network, the shielding winding is much higher than was used in the professional stage performances and need the mobile device;
3, the foil isolation: the use of aluminum foil with the external characteristics of the wire as a shield, and with an earth to ground, the shielding effect of good, used in construction of such multi-wire multi-conductor cable installed or stage.
4, conductive PVC / PE: the use of soft conductive material PVC / PE outsourcing to the external wire, with comprehensive coverage and easy to damage the features, you need to use with a wound or braided, generally used in high wire on the microphone.
5, compound isolation (double isolation): double shield to compensate for the above advantages and disadvantages of a variety of shielding, the most common is the foil + braid, mainly used in highly shielded wire required, in addition to VGA signal transmission using UL2919 wire is used for this class technology.