Reply
 
LinkBack Thread Tools Search this Thread Display Modes
  #1   Report Post  
Old November 16th 04, 11:40 PM
Keyboard In The Wilderness
 
Posts: n/a
Default

From URL:
http://www.astronantennas.com/polarization.html

On line-of-sight (LOS) paths, it is most important that the polarization of
the antennas at both ends of the path use the same polarization. In a
linearly polarized system, a misalignment of polarization of 45 degrees will
degrade the signal up to 3 dB and if misaligned 90 degrees the attenuation
can be 20 dB or more.

--
The Anon Keyboard
I doubt, therefore I might be



Someone wrote
"your best bet is
probably a small beam, regardless of polarization issues.



"Keyboard In The Wilderness" wrote in message
news:jTvmd.145327$hj.28281@fed1read07...
Replied
However, a yagi can be rotated 90 deg to have vertical polarization
thereby avoiding the cross polarization attenuation which can be
significant. Just be careful of interaction between the yagi elements and
the mast.
AND
A quad can be fed to have vertical polarization

--
The Anon Keyboard
I doubt, therefore I might be



"Bob Miller" wrote in message
...
On Tue, 16 Nov 2004 18:44:38 +0000, tonester
wrote:

Looking to build a decent 6 mtr antenna ... probably a loop...

space no problem indoor out out...

want to hit local repeater 50 miles away...


Depends on how high the repeater antenna is and how much power you're
running -- to hit a repeater at that distance your best bet is
probably a small beam, regardless of polarization issues.

A beam would also be your best bet for general 6 meter work.

Six meter beams aren't all that expensive -- if you really want to
homebrew one, do a google search.

bob
k5qwg



Have you had experience and can you recommend a good one..!!!
THX in advance

Tony






Reply
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
Inverted ground plane antenna: compared with normal GP and low dipole. Serge Stroobandt, ON4BAA Antenna 8 February 24th 11 10:22 PM
The "TRICK" to TV 'type' Coax Cable [Shielded] SWL Loop Antennas {RHF} RHF Antenna 27 November 3rd 04 01:38 PM
Mobile Ant L match ? Henry Kolesnik Antenna 14 January 20th 04 04:08 AM
Poor quality low + High TV channels? How much dB in Preamp? lbbs Antenna 16 December 13th 03 03:01 PM


All times are GMT +1. The time now is 12:25 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