LinkBack Thread Tools Search this Thread Display Modes
Prev Previous Post   Next Post Next
  #1   Report Post  
Old December 14th 08, 05:16 PM posted to rec.radio.amateur.antenna
external usenet poster
 
First recorded activity by RadioBanter: May 2008
Posts: 7
Default NEC2 model of 40m loaded cubical quad

Hi - I am trying to play around with modeling a loaded 40 meter
cubical quad. To start I made a single loop the size I wanted (about
2/3 full size) - I then looked at the impedance on 7.1Mhz. I added a
load (inductance) to bring the loop to resonance on 7.1Mhz. I then
created some parasitic elements - a director and reflector. I used the
same value load for these elements. Now, can I just adjust the lengths
of the wires to tune the feedpoint impedance and directivity and leave
the value of the load alone? Or is there some reason I will need to
adjust those values too? I placed the load opposite the feedpoint,
FYI.

-Scott, WU2X
 
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
Free HF Cubical Quad Parts Dave Head Swap 1 December 12th 08 01:36 AM
Quad loop supported by single tower - NEC2 modeling question [email protected] Antenna 3 December 8th 07 10:42 PM
2L Steppir or 2L Cubical quad Francis Pinson Antenna 4 August 6th 07 04:49 PM
How to model a 6:1 ratio balun using NEC2 [email protected] Antenna 10 June 23rd 06 05:55 AM
how to model a loaded vertical ?? dansawyeror Antenna 11 September 14th 05 07:25 PM


All times are GMT +1. The time now is 10:19 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