LinkBack Thread Tools Search this Thread Display Modes
Prev Previous Post   Next Post Next
  #7   Report Post  
Old December 5th 03, 10:33 PM
Richard Clark
 
Posts: n/a
Default

On Fri, 05 Dec 2003 13:03:34 -0600, Bob Miller
wrote:

On Fri, 05 Dec 2003 18:52:30 GMT, Richard Clark
wrote:
What few dipole users would admit (because they love to crow about not
having radials) is that if you add radials, you can further improve
your dipole performance up AND tangentially.


Where would I attach radials on a dipole?


Hi Bob,

Not to the dipole certainly; to the ground below the dipole. It is,
after all, the ground that presents the loss. The radials reduce that
loss as is their function.

For example, a 20M dipole one halfwave over a ground mat (1M grid
about 1 wavelength in XY dimension), shows a gain of 7dBi at 30°.

Take away that ground mat, it shows a gain of 6.5dBi at that same 30°.

Nothing remarkable in my book, but I have the ground mat anyway.

73's
Richard Clark, KB7QHC
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules

Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Inverted ground plane antenna: compared with normal GP and low dipole. Serge Stroobandt, ON4BAA Antenna 8 February 24th 11 11:22 PM
Poor quality low + High TV channels? How much dB in Preamp? lbbs Antenna 16 December 13th 03 04:01 PM
QST Article: An Easy to Build, Dual-Band Collinear Antenna Serge Stroobandt, ON4BAA Antenna 12 October 16th 03 08:44 PM
Are fractal antennas being used in cellphones? totojepast Antenna 16 September 21st 03 08:45 PM


All times are GMT +1. The time now is 10:30 AM.

Powered by vBulletin® Copyright ©2000 - 2025, Jelsoft Enterprises Ltd.
Copyright ©2004-2025 RadioBanter.
The comments are property of their posters.
 

About Us

"It's about Radio"

 

Copyright © 2017