Subzero Szw 20 Handheld Wireless Microphone System A electric guitar pickup is actually just like a dynamic microphone coil. For decades, powerful microphones have already been wired with the style coil attached to the primary of the microphone's transformer, and perhaps not referenced to ground (‘floating'). The microphone's situation is typically linked to the wire shield, which will be linked to the microphone amplifier's ground (see Rane's web site for more discussion).
By and big, vibrant microphones are very quiet units as a result of the combination of transformer solitude and balanced, hanging sign lines through the duration of, in addition to protected, humbucking coils.
Therefore why don't you guitars? Instruments are notoriously affected by noise. Humbucking pickups are just a partial (though crucial!) solution. The obvious answer is always to move the guitar pickup to a healthy output, just like a microphone. A similar idea was published this 2001 patent request such as Subzero Szw 20 Handheld Wireless Microphone System?