Wireless Microphone Recording System A guitar pickup is basically just like an energetic mike coil. For many years, dynamic microphones have now been wired with the voice coil mounted on the primary of the microphone's transformer, and perhaps not recommended to floor (‘floating'). The microphone's situation is typically connected to the cable shield, that is linked to the microphone amplifier's soil (see Rane's internet site for more discussion).
By and big, powerful microphones are very quiet units as a result of the mixture of transformer solitude and healthy, floating transmission lines all through, in addition to shielded, humbucking coils.
Therefore why not guitars? Instruments are notoriously overwhelmed by noise. Humbucking pickups are just a partial (though crucial!) solution. Well-known alternative would be to move practicing the guitar pickup to a balanced output, just like a microphone. A similar idea was printed that 2001 patent request like this Wireless Microphone Recording System?