[TowerTalk] 4 square for 80

[Steve London]

Interesting observation.

Where does all that common mode energy go, if not into heat ? Does it 
get converted to useful RF power, or is it dissipated someplace else in 
the system ?

73,
Steve, N2IC

On 09/26/2016 08:41 AM, Rik van Riel wrote:
> On Mon, 2016-09-26 at 08:35 -0600, Steve London wrote:
>>
>> Okay, let's put in those K9YC multiturn chokes at each feedpoint.
>> This
>> provides a -resistive- load to the common mode path. In fact, these
>> chokes can get pretty warm. So, the way I see it, putting in common
>> mode
>> chokes does nothing to reduce the system power loss that K2AV is so
>> concerned about.
>
> The thing about resistive common mode chokes is, the higher
> their impedance, the lower the amount of power lost.
>
> Put a choke with over 1000 ohms of impedance into an antenna
> system with 35 ohm impedance, and the losses will be quite
> small.
>