LinkBack Thread Tools Search this Thread Display Modes
Prev Previous Post   Next Post Next
  #19   Report Post  
Old December 15th 08, 04:25 PM posted to rec.radio.amateur.antenna
external usenet poster
 
First recorded activity by RadioBanter: Jul 2006
Posts: 2,951
Default Phasing of stacked Yagis

On Mon, 15 Dec 2008 14:19:28 -0000, "christofire"
wrote:

Is this a quiz?

And then you allow:
However, I concede there may be some reason to want to combine/power-split
using balanced line but ultimately it will need to be connected to a
co-axial line - if the intention is to achieve this without use of a balun
then I wonder if this would be more of a 'nightmare'.


It must be a quiz - when I point out that Dave does not call out for
isolation (*ferrite* BalUns as have been identified through Jerry's
and Owen's correspondence) and as you do as an aside - then what is it
that you find debatable about my commonplace observation?

Common Mode doesn't disappear into the VHF/UHF. Common Mode creates a
complex impedance product that is generally unaccounted for (ignored),
and would certainly disturb phase relationships where phase
relationships are of primary importance.

The only other alternative is consuming transmission line in coils to
the same purpose. That hasn't been offered as a choice until now.

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
two stacked yagis vs one long yagi n4aeq Antenna 7 December 4th 06 03:16 AM
Long boom Vs Stacked elements art Antenna 5 October 22nd 06 09:00 PM
6M stacked loops - best height above ground? Charlie Antenna 25 December 30th 05 02:12 AM
Stacked Yagi 2m over 70 cm atec Antenna 8 May 3rd 05 05:45 PM
6 meter stacked halo ? DOUGLAS SNOWDEN Antenna 2 November 14th 04 07:06 PM


All times are GMT +1. The time now is 08:46 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