Re: [TowerTalk] 40M rotary dipole and CM current

[Jim Brown <jim@audiosystemsgroup.com>]

On 9/21/2017 3:20 PM, Wes Stewart wrote:
> I thought the CM current in question came from the antenna in the 
> first place.
It depends whether it's receive or transmit. The principle of 
reciprocity applies. As I've tried to emphasize, the most important 
reason for using a choke is to suppress RX noise, but by suppressing 
common mode current during TX, we minimize crosstalk to other antennas.
73, Jim K9YC


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