[Elecraft] Home made Sigma-GT5 & KRC2 or SGC?

[George, W5YR]

Thanks, Earl . . . I guess I misread or misunderstood your comment.

73, George W5YR
Fairview, TX
w5yr@att.net
http://www.w5yr.com


----- Original Message ----- 
From: "Earl W Cunningham" <k6se@juno.com>
To: <w5yr@att.net>
Cc: <mikemccoy@austin.rr.com>; <elecraft@mailman.qth.net>
Sent: Sunday, March 21, 2004 7:04 PM
Subject: Re: [Elecraft] Home made Sigma-GT5 & KRC2 or SGC?


> 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."
> ==========
> 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
>