[TowerTalk] Common Mode Choke Question

[Jim Brown]

Hi Carol,

Amidon does not make cores, they sell stuff made by other companies, and 
terribly high markups. 2.4-in cores are made from dozens of different 
magnetic materials, all very different from each other.  Study 
k9yc.com/RFI-Ham.pdf  and http://k9yc.com/KillingReceiveNoise.pdf

73, Jim K9YC

On 9/27/2017 11:43 AM, Carol Richards wrote:
> Hello,
>
> At present I have an inverted "L", 100+ feet vertical with 4 elevated 
> radials, about 130 feet long at 10 feet in height. I am about to 
> construct a CM choke. On hand, I have 4,  Amidon 2.4 inch cores. From 
> the reading, it seems that I should have 5 cores and about 5 turns of 
> RG8 coax. I can I get away with 4 cores?