You are NOT grasping the problem or the suggested solution. Please do yourself a favor and go read K9YC's white papers on bonding/grounding, noise reduction, EMI/RFI reduction, etc....
Just do it... ______________________ Clay Autery, KY5G MONTAC Enterprises (318) 518-1389 On 8/31/2016 2:23 PM, Enzo Adrian-Reyes wrote: > This would be hard but I can see how that could happen. > The KX3 and the laptop use 2 prong connectors and this still happens, the > macbook pro has a grounded power plug > but this still happens. > > The stupid thing is they all share the same power board, so in theory they > should all be sharing the same green wire. > > However > > The KX3 chassis is connected to a ground system independent than the > electrical ground, the same way I thought hams connected their radio > equipment to ground (through a ground rod). The problem I have is that I > live near KVA power lines, and they induce a current on the shield of the > coax, which if I dont ground the KX3 causes electrical build it which I can > sense with my finger. > > So given what you have said the ground of the KX3 chassis is connected to > the ground system for the radio, and this is causing the loop. > However this means I cannot do what you suggest, as the ground in all the > plugged elements is already connected to the green wire, except the KX3 > whose power supply is a double isolated, except the chassis which is > connected to the radio ground. > > I do not know how to solve this, my only work around for this would be to > try to isolate the incoming current with arrestors at the entrance of the > shack, but that might not get rid of this current. > > Regards > > > On Thu, Sep 1, 2016 at 3:06 AM, Jim Brown <[email protected]> wrote: > >> Loop is absolutely the wrong way to view this problem, and transformers >> are NOT the easiest or cheapest solution. >> >> The solution is 1) proper chassis-to-chassis BONDING between all of the >> equipment being interconnected and 2) get power for all of the >> interconnected equipment from the same mains outlet, or from outlets that >> share the same "green wire" (what is called the "protective earth" in >> Europe). >> >> 73, Jim K9YC >> ______________________________________________________________ Elecraft mailing list Home: http://mailman.qth.net/mailman/listinfo/elecraft Help: http://mailman.qth.net/mmfaq.htm Post: mailto:[email protected] This list hosted by: http://www.qsl.net Please help support this email list: http://www.qsl.net/donate.html Message delivered to [email protected]
