LinkBack Thread Tools Search this Thread Display Modes
Prev Previous Post   Next Post Next
  #1   Report Post  
Old August 20th 05, 01:21 AM
dansawyeror
 
Posts: n/a
Default 80 meter loaded vertical versus 80 meter loaded dipole ?

All,

I have been using an 80 meter loaded vertical for a couple of years with
moderate success. The ground system is a dozen 'untuned' radials 40 or so feet
laying on the ground. The feed line is about 100 feet of RG-8 coax. The SWR in
the shack is about 1.1 to 1.

I have done some research on the antenna and based on it parameters it should
have a radiation resistance of about 4 Ohms. This says that the coil and ground
are absorbing on the order of 45 Ohms. This is 10db performance loss.

I have limited space and the most common solutions are not available to me. From
a practical perspective it would seem to me that building a 40 foot center feed
loaded dipole and putting it in the attic or on the roof would probably perform
somewhat better.

Is this a reasonable assumption?

Would burying the radials and connecting them to several 4 square foot buried
screens substantially help the ground system?

Thanks,
Dan kb0qil




 
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
160 thru 20 meter homebrew vertical system denton Antenna 16 September 14th 04 07:37 PM
10, 6 & 2 Meter Vertical Marvin Rosen Antenna 9 January 11th 04 07:38 PM
Advice good 80 meter vertical Fjx1 Antenna 5 December 9th 03 09:34 PM
Conix 160 Meter Vertical --CQ Uncle Peter Antenna 0 November 18th 03 10:02 PM
Smith Chart Quiz Radio913 Antenna 315 October 21st 03 05:31 AM


All times are GMT +1. The time now is 05:50 PM.

Powered by vBulletin® Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Copyright ©2004-2024 RadioBanter.
The comments are property of their posters.
 

About Us

"It's about Radio"

 

Copyright © 2017