[RFI] House Ground

[Cortland Richmond]

On 3/16/2016 2:24 AM, Robert Nobis wrote:
> Many modern, small profile, PCs have a built in power supply (switching) and are connected to the AC mains with a two wire cord/plug, without a “green wire”. My iMac and MacMini are like this as is my Microsoft Surface Pro 3.   Per your step two, should these types of computers also be bonded to the radio with a heavy short braid?

See https://en.wikipedia.org/wiki/Appliance_classes#Class_II

My Surface Pro uses a double insulated, external power supply with a 
number of agency safety marks. Bypassing double insulation with an 
external ground wire is a bad idea, as that protection is also bypassed. 
It can also increase radio interference.  Does this mean we can't filter 
signals going into and out of such equipment? No it doesn't. We have to 
ensure that the signals we want to filter are also insulated to the same 
degree as the equipment is.

Cortland Richmond
KA5S