The feedpoint is the exact electrical and mechanical junction where a coaxial cable or waveguide delivers radio frequency energy to an antenna radiating element. Its impedance must closely match that of the transmission line to ensure maximum power transfer and minimize reflected signals. Engineers often install baluns or matching networks directly at this junction to correct any impedance mismatches before the signal radiates.
We're seeing high standing wave ratios because water got into the connector right at the feedpoint.
Related terms
Coaxial cable
A copper transmission line built with a central conductor surrounded by an insulating layer and a braided metallic shield.
Hardline
A physical, wired communications connection rather than a wireless one.
Downlead
The cable that connects an elevated antenna to radio equipment at ground level.