LinkBack Thread Tools Search this Thread Display Modes
Prev Previous Post   Next Post Next
  #1   Report Post  
Old January 14th 08, 12:49 PM posted to rec.radio.amateur.antenna
external usenet poster
 
First recorded activity by RadioBanter: Jun 2006
Posts: 487
Default folding a dipole in half

I have a very short space where I need to put up a temporary antenna.
It has to be rolled out during the day and rolled up and hidden at night.

20m would be a good band for me to use, and it will just about fit, so
I was thinking of a 1/4 wavelength radiator with a 1/4 wavelength
counterpoise made out of wire.

Since I have lots of 300 Ohm twinlead just sitting around, I could
make the radiator out of it. I understand that if I were to short both
ends and center feed it, it would be a standard 300 ohm folded dipole.

I think if I were to short the ends and end feed it, it would be a
eaquivalent to a wide(er) 1/4 wavelength end fed antenna and still
need a counterpoise.

What would happen if I were to end feed it as if it were two seperate
wires, either with a balun or without? Would it work? What is this called?

Thanks in advance,

Geoff.



--
Geoffrey S. Mendelson, Jerusalem, Israel N3OWJ/4X1GM
IL Voice: (07)-7424-1667 U.S. Voice: 1-215-821-1838
Visit my 'blog at
http://geoffstechno.livejournal.com/
 
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
I'M HALF HOG Lllloyd DaViEs Policy 2 October 2nd 06 08:21 PM
folding an antenna leg Richard Clark Antenna 0 June 9th 05 09:20 PM
half-wave dipole in the forest Mark T. Kennedy Antenna 86 October 1st 04 11:09 PM
folding antenna, can it be refolded cme Antenna 4 February 23rd 04 01:33 AM


All times are GMT +1. The time now is 10:06 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