[TowerTalk] Good vacation antenna

Jim Brown jim at audiosystemsgroup.com
Thu Jul 3 23:36:37 EDT 2025


On 7/3/2025 2:11 PM, Wes Stewart via TowerTalk wrote:
> So you move the loading coil from the base of the antenna to inside the tuner in the radio (with some coax in between).  How does that affect the radiation efficiency/?

The "tuner" is really a matching network that maximizes the power that 
the output stage can get into the transmission line. Current 
distribution in the antenna is determined by the boundary conditions -- 
that is, gotta be near zero at the ends of the intentional radiator and 
the counterpoise.

73, Jim K9YC



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