[Elecraft] Home made Sigma-GT5 & KRC2 or SGC?
Earl W Cunningham
[email protected]
Sun Mar 21 20:08:00 2004
George, W5YR wrote:
"With endfeed, the radiation resistance must be much greater than with
center feed. In fact, if the antenna is lossless, that 3000 ohm driving
point impedance will *be* Rrad."
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You're absolutely right, George. The radiation resistance of an antenna
at resonance (zero reactance) is equal to the feedpoint resistance. An
end-fed dipole will indeed have a much higher radiation resistance than a
center-fed dipole.
73, de Earl, K6SE