[Elecraft] KX3 and JS8CALL

[Jim Brown]

On 8/7/2019 11:02 AM, Michael Arnold wrote:
> This method may result in some low-level 60 and 120 Hz audible ground loop hum when AC powered, particularly with the powered speaker connected,

Power line hum and buzz can be prevented by 1) getting power for all 
interconnected equipment from the same AC outlet, or from outlets whose 
Green Wires are bonded together, AND 2) bonding from chassis to chassis 
of all interconnected equipment, AND 3) proper bonding of all grounds in 
the home, including ground from that interconnected equipment in the 
shack. All three are necessary. There's a tutorial on this at 
k9yc.com/publish.htm

73, Jim K9YC