Topband: Help with RFI

[Jim Brown]

On 1/12/2013 7:38 PM, Mike Waters wrote:
> I wrap a few turns of the CAT 5 Ethernet cable coming into the back of my
> shack PC around a few stacked 2.4" diameter #31 ferrite cores.

For 160M, 14 turns on a single #31 core is a pretty good choke. Don't 
overlook power supply cables as a possible receiving or radiating 
antenna for RF.  A #43 core "works" at these frequencies, but not nearly 
as well.

73, Jim K9YC