Machonacho Posted March 3, 2014 Share Posted March 3, 2014 I have a new pod hd desktop I am using with an epiphone guitar with passive pickups ( I think that is the term, there is no battery in the guitar ). Connecting the guitar to the pod, and then headphones in the 1/4 headphone jack, I hear a buzzing or humming sound thru the headphones. The pod is not connected to anything else, and is not connected to a computer. When the guitar cable is plugged, it, I can touch the exposed metal part of the jack on the guitar or pod side and the humming gets much better. I can also touch the metal part of the pod case and make the humming better. I am new to this, but from searching others have mentioned ground loops. Since nothing else is connected to the pod, I did not think this was a ground loop. If I change the input impedance of the pod to the lowest value, the humming gets better but still noticeable. If I add a noise gate to the front of any of the presets, there is no humming until I play the guitar and then I can hear it. Could this be a ground loop or a problem with the pod? I was thinking about manually running a wire from the exposed guitar cable to the ground of an outlet, but that seems excessive. Does anyone else hear this sound and if so, how did you solve this. I have the latest firmware on the pod hd desktop as well. Thanks Quote Link to comment Share on other sites More sharing options...
silverhead Posted March 3, 2014 Share Posted March 3, 2014 Have you confirmed that the noise is not being produced by your guitar, the cable, or your headphones? Just trying to eliminate variables to narrow the problem down........ 1 Quote Link to comment Share on other sites More sharing options...
Machonacho Posted March 3, 2014 Author Share Posted March 3, 2014 I have tried two cables, and both had the same symptoms. For the headphones, I use them for music and an electronic drum set, no buzzing there. I don't know how to verify the guitar, as I don't have an amp, just the pod. I am trying to find a second guitar I can borrow and test out with the pod. Thanks for the ideas, I am new to electric guitars and the pod Thanks Quote Link to comment Share on other sites More sharing options...
jandrio Posted March 3, 2014 Share Posted March 3, 2014 Watch out for fluorescent lights and dimmer switches as they can add lots of 60hz noise.Check out this oneDIY fix - guitar repair - Fixing excessive hum - fixing bad groundsSearch 4 "guitar hum". I am sure u will find useful info out there. 1 Quote Link to comment Share on other sites More sharing options...
Machonacho Posted March 3, 2014 Author Share Posted March 3, 2014 Thanks for the help. It sounds like this is normal behavior and not a problem with the pod. From watching that youtube video and searching for guitar hum, I will check the grounding inside of the guitar. If that looks good, I will look into upgrading the shielding. I am new to electric guitars, so thanks for answering the newbie questions. 1 Quote Link to comment Share on other sites More sharing options...
jandrio Posted March 3, 2014 Share Posted March 3, 2014 Ok, do not hesitate to post any further questions. rgds/john Quote Link to comment Share on other sites More sharing options...
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