LinkBack Thread Tools Search this Thread Display Modes
Prev Previous Post   Next Post Next
  #4   Report Post  
Old March 9th 06, 07:23 AM posted to rec.radio.amateur.antenna
Ian White GM3SEK
 
Posts: n/a
Default Bend in xmission line

Richard Harrison wrote:
Alfred Lorona wrote:
"Conventional wisdom cautions against sharp bends in open wire
transmission line."

One does not want to create an impedance bump. Ed Laport shows how to
make right-angle turns. See page 396 of "Radio Antenna Engineering". It
works fine with 100 KW.


Can you describe that, please?

Parallel-wire feedline is used with success in 432MHz moonbounce which
are very sensitive to small losses. I don't have any information on
sharp bends, but T-joints and curved bends with say a foot radius cause
no noticeable problems.


--
73 from Ian GM3SEK 'In Practice' columnist for RadCom (RSGB)
http://www.ifwtech.co.uk/g3sek
 
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
SWR - wtf? john d CB 136 July 2nd 05 08:31 PM
SWR - wtf? Roy Lewallen Antenna 110 July 1st 05 05:30 AM
How to measure soil constants at HF Reg Edwards Antenna 104 June 25th 05 10:46 PM
swr question Fred W4JLE Antenna 27 June 1st 05 01:45 AM
FCC: Broadband Power Line Systems Paul Policy 0 January 10th 05 05:41 PM


All times are GMT +1. The time now is 05:42 PM.

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