LinkBack Thread Tools Search this Thread Display Modes
  #1   Report Post  
Old August 4th 04, 09:24 AM
Posts: n/a
Default Steppir antenna

"Tam/WB2TT" wrote in message

I am not familiar with your tower, but gather that the cage comes down the
side. Isn't there some heading of the antenna that would let you do this?
Maybe rotated 45 degrees to the tower face, with the boom fastened to the
side of the mast away from the tower. I wonder how accurate your 50 cm
number was. Could it end up beong 5 or 10 cm?

Hi Tam,

Here is an image during the building of the Hummel tower
As you see the mast is at left.
We thougth to rotate the antenna of 45 deg to move teh central element away
from the tower but its is difficult
If we install a 3-ele beam, in almost all cases the central element is in
the passage when lowering the beam.
We have to move the central element of about 50 cm or so to the parasitic
elements (the tower width is 50 cm, 20") to prevent this problem.
Steppir as well a 4 element beam but the boom is huge, 10m I think, and no
really cheap...
So up to now we have no solution without modifying the F/B ratio of the
beam, or to look at another brand... easier to handle and cheaper.

Thierry, ON4SKY

Thierry, ON4SKY

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
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
QST Article: An Easy to Build, Dual-Band Collinear Antenna Serge Stroobandt, ON4BAA Antenna 12 October 16th 03 07:44 PM

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

Powered by vBulletin® Copyright ©2000 - 2020, Jelsoft Enterprises Ltd.
Copyright 2004-2020 RadioBanter.
The comments are property of their posters.

About Us

"It's about Radio"


Copyright © 2017