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 _________________ Topband Reflector
