Towertalk
[Top] [All Lists]

[Towertalk] Grounding an Elevated vertical

To: <towertalk@contesting.com>
Subject: [Towertalk] Grounding an Elevated vertical
From: K4IA@aol.com (K4IA@aol.com)
Date: Mon, 11 Mar 2002 07:21:23 EST
--part1_32.237a2562.29bdfb43_boundary
Content-Type: text/plain; charset="US-ASCII"
Content-Transfer-Encoding: 7bit

In a message dated 3/11/2002 4:53:07 AM Eastern Standard Time, 
tonno.vahk@mail.ee writes:


> Thus how can you deny that installing a nearly perfect ground screen under 
> elevated vertical with a few radials frees you from 3-4-5-6 or whatever DBs 
> of ground loss in the system?
> 

I just don't understand how a ground screen, unconnected to the antenna does 
anything to remove ground loss.  Where does the power go?  Cebik's article 
suggests you have created a parasitic reflector that shoots your signal 
straight up.

Radio K4IA
Craig Buck
Fredericksburg, Virginia USA
QRP ARCI #2550  FISTS #6702 CC 788 Diamond #64
K1 #470    K2 #2460 
----------------------------------------------
For cheap long distance, 800#s and more

Tune to <A 
HREF="http://www.ld.net/?bucksavers";>http://www.ld.net/?bucksavers</A>
4.9 cents/min - no monthly fees

--part1_32.237a2562.29bdfb43_boundary
Content-Type: text/html; charset="US-ASCII"
Content-Transfer-Encoding: 7bit

<HTML><FONT FACE=arial,helvetica><FONT  SIZE=2>In a message dated 3/11/2002 
4:53:07 AM Eastern Standard Time, tonno.vahk@mail.ee writes:<BR>
<BR>
<BR>
<BLOCKQUOTE TYPE=CITE style="BORDER-LEFT: #0000ff 2px solid; MARGIN-LEFT: 5px; 
MARGIN-RIGHT: 0px; PADDING-LEFT: 5px">Thus how can you deny that installing a 
nearly perfect ground screen under elevated vertical with a few radials frees 
you from 3-4-5-6 or whatever DBs of ground loss in the system?</FONT><FONT  
COLOR="#000000" style="BACKGROUND-COLOR: #ffffff" SIZE=3 FAMILY="SANSSERIF" 
FACE="Arial" LANG="0"><BR>
</BLOCKQUOTE><BR>
</FONT><FONT  COLOR="#000000" style="BACKGROUND-COLOR: #ffffff" SIZE=2 
FAMILY="SANSSERIF" FACE="Arial" LANG="0"><BR>
I just don't understand how a ground screen, unconnected to the antenna does 
anything to remove ground loss.&nbsp; Where does the power go?&nbsp; Cebik's 
article suggests you have created a parasitic reflector that shoots your signal 
straight up.<BR>
<BR>
Radio K4IA<BR>
Craig Buck<BR>
Fredericksburg, Virginia USA<BR>
QRP ARCI #2550&nbsp; FISTS #6702 CC 788 Diamond #64<BR>
K1 #470&nbsp;&nbsp;&nbsp; K2 #2460 <BR>
----------------------------------------------<BR>
For cheap long distance, 800#s and more<BR>
<BR>
Tune to <A 
HREF="http://www.ld.net/?bucksavers";>http://www.ld.net/?bucksavers</A><BR>
4.9 cents/min - no monthly fees</FONT></HTML>

--part1_32.237a2562.29bdfb43_boundary--

<Prev in Thread] Current Thread [Next in Thread>