[TowerTalk] Feedline (choke) question

Jim Brown jim at audiosystemsgroup.com
Sun Sep 28 03:26:23 EDT 2025


On 9/27/2025 11:50 PM, Brian Beezley wrote:
> Dave, common-mode current in coax shield is no different than current in 
> a dipole

Exactly right. And the same is true of common mode current on a 2-wire 
line. I intentionally do not call it "balanced" line -- balance is 
defined by the entire system, which includes the antenna, it's 
relationship to its surroundings, and how its terminated in the shack. 
On the line, the imbalance shows up as a difference between current in 
the two conductors.

73, Jim K9YC




More information about the TowerTalk mailing list