View Single Post
  #10   Report Post  
Old July 16th 07, 05:10 PM posted to rec.radio.amateur.antenna
Cecil Moore[_2_] Cecil Moore[_2_] is offline
external usenet poster
 
First recorded activity by RadioBanter: Mar 2007
Posts: 3,521
Default extended double zepp

Amerigo Vespucci wrote:
"Cecil Moore" wrote in message
t...
Amerigo Vespucci wrote:
The way I understood it was the best way to feed it was with ladderline
or something equal to it.

Did anyone tell you that the matching section needs to be
about 0.2 wavelength?


Explain?


To make an EDZ system resonant, i.e. a resistive impedance
looking into the feedline, the ladder-line needs to be
about 0.2 wavelengths long (plus N*1/2 wavelengths).
--
73, Cecil http://www.w5dxp.com