I'm feeding a half sloper for 160 on the 100 ft tower. I've fed it direct which worked just fine with no apparent RF on the feedline. However I'm adding a current choke just to be sure and changing f
Roger, Interesting question! I just tried a measurement using four FT240-31 cores - all I had spare in the component draw. I wound 9 turns of RG-400 on a stack of four cores. The CM impedance peaked
For a ferrite choke with close-spaced turns, it does not matter if he cores are together or separated. What matters is the number of turns and the number of cores. The inductance increases with the s
On 10/21/2012 6:09 PM, Jim Brown wrote: On 10/20/2012 7:23 PM, K8RI wrote: My question is about the difference between the 6 cores stacked or two stacks side by side. For a ferrite choke with close-s
I've measured this on several occasions, and have consistently found that the "binocular" format has significantly more distributed C than the solenoidal/toroidal format. Therefore the impedance peak
On 10/21/12 10:51 PM, K8RI wrote: On 10/21/2012 6:09 PM, Jim Brown wrote: On 10/20/2012 7:23 PM, K8RI wrote: My question is about the difference between the 6 cores stacked or two stacks side by side
On 10/22/2012 9:16 AM, Mike wrote: On 10/21/12 10:51 PM, K8RI wrote: On 10/21/2012 6:09 PM, Jim Brown wrote: On 10/20/2012 7:23 PM, K8RI wrote: My question is about the difference between the 6 cores