Re: uBITX + Teensy audio interface - ground loops (?), RX/TX audio bleed? #ubitx #teensy

Evan Hand
 

Most Laptops do not have an earth ground.  You do have the shield of the USB port, however that would not necessarily ground for AC interference.

It was just a suggestion for a possible cause for the hum disappearing when the uBITX is connected, as the shield of the coax is usually at earth ground.

Good luck and 
73
Evan
AC9TU

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