LinkBack Thread Tools Search this Thread Display Modes
Prev Previous Post   Next Post Next
  #1   Report Post  
Old September 22nd 08, 06:52 PM posted to rec.radio.amateur.antenna
external usenet poster
 
First recorded activity by RadioBanter: Dec 2006
Posts: 18
Default Carolina Windom revisited: 4 to 1 balun does nothing to choke RF?

Having received some very good advice about the Carolina Windom, I now
ask a question to which I THINK I already know the answer.

This particular version of the CW OCF dipole uses 300 ohm twin lead
feedline terminated after 33 feet to a 4:1 balun. Richard warned of
significant risk of RF on the outer (inner?) braid of the coax.

I've never read of using a 1:1 unun right after a 4:1 balun to minimize
RF on the outer coax.

My thinking is that the 4:1 balun acts as a voltage type and will do
nothing to ameliorate this. So, I will put some ferrite rings or snap
on ferrites just past the 4:1 balun on the coax.


Does this sound like a reasonable solution?

John
AB8O
 
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
Carolina Windom using 300 ohm ladderline john Wiener Antenna 10 September 11th 08 04:02 PM
Results: Carolina Windom Rick (W-A-one-R-K-T) Antenna 4 September 7th 07 09:38 PM
Ferrite cores instead of a 1:1 current-choke UnUn for a Carolina Windom Rick (W-A-one-R-K-T) Antenna 9 September 1st 07 03:09 AM
FA: Carolina Windom 160M Larry Wilson Swap 0 June 10th 05 09:31 PM
Carolina Windom jimbo Antenna 9 March 16th 05 01:38 PM


All times are GMT +1. The time now is 10:05 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