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Total 220 documents matching your query.

121. Re: Topband: Dual band shunt-feeding tower on 160/80 (score: 2)
Author: "Gene Smar" <ersmar@verizon.net>
Date: Mon, 26 Aug 2013 13:06:31 -0400
Paul: My tower is a 64-foot tall Tryon self-supporter - shorter than yours. Top loading is provided by a Bencher Skyhawk ten-element triband Yagi where I shorted the parasitic elements to the boom wi
/archives//html/Topband/2013-08/msg00337.html (9,388 bytes)

122. Re: Topband: Dual band shunt-feeding tower on 160/80 (score: 2)
Author: N1BUG <paul@n1bug.com>
Date: Mon, 26 Aug 2013 12:49:48 -0400
I've done exactly what Herb suggested: hung a sloper for 80M off the side of my 160M shunt-fed tower. Neither antenna knows the other is there and both work pretty well - meaning I'm satisfied with w
/archives//html/Topband/2013-08/msg00336.html (7,911 bytes)

123. Re: Topband: Dual band shunt-feeding tower on 160/80 (score: 2)
Author: "Gene Smar" <ersmar@verizon.net>
Date: Mon, 26 Aug 2013 09:38:59 -0400
Jeff: I've done exactly what Herb suggested: hung a sloper for 80M off the side of my 160M shunt-fed tower. Neither antenna knows the other is there and both work pretty well - meaning I'm satisfied
/archives//html/Topband/2013-08/msg00334.html (9,112 bytes)

124. Re: Topband: Dual band shunt-feeding tower on 160/80 (score: 2)
Author: Herb Schoenbohm <herbs@vitelcom.net>
Date: Mon, 26 Aug 2013 05:47:28 -0400
Jeff, You will have problems with attempting to shunt feed a 100 foot grounded tower on 80 since it approaches a grounded half wave radiator and just to long on 80. The solution for this is to make a
/archives//html/Topband/2013-08/msg00329.html (8,202 bytes)

125. Re: Topband: tree losses (score: 2)
Author: Jim Brown <jim@audiosystemsgroup.com>
Date: Tue, 06 Aug 2013 02:19:24 -0700
As Tom, Rudy, and Richard have noted, this stuff is potentially important, but awfully difficult to quantify for a variety of reasons. One is that what's happening in the trees is not the only thing
/archives//html/Topband/2013-08/msg00074.html (12,773 bytes)

126. Topband: Need help to improve DX on 1/2 acre lot from CA (score: 2)
Author: "kr6c@juno.com" <kr6c@juno.com>
Date: Wed, 16 Jan 2013 03:55:02 GMT
Topband is one of the most frustrating HF band to work DX on that you will encounter. Can it be done from a 1/2 acre city lot, yep, and smaller. I may live in the "high desert" (Quartz Hill/Lancaster
/archives//html/Topband/2013-01/msg00111.html (12,419 bytes)

127. Re: Topband: Need help to improve DX on 1/2 acre lot from CA (score: 2)
Author: "WS6X" <ws6x@comcast.net>
Date: Mon, 14 Jan 2013 16:01:16 -0800
Hello All, First, I want to describe my problem. I have a 1/2 acre lot in the back property where I install my antennas. I live in the central valley of California which is only about 300 feet ASL. I
/archives//html/Topband/2013-01/msg00104.html (11,871 bytes)

128. Re: Topband: 160 shunt fed tower update (score: 2)
Author: Steve London <n2icarrl@gmail.com>
Date: Fri, 11 Jan 2013 16:52:49 -0700
I dont know what you are using for 80M Steve and why all the feeds, etc are located at the top of the tower. In the 80's I had a 100' Rohn 25 with a stack of yagis and shunt fed on 160 which worked
/archives//html/Topband/2013-01/msg00080.html (8,036 bytes)

129. Re: Topband: Inverted L question (score: 2)
Author: Guy Olinger K2AV <olinger@bellsouth.net>
Date: Thu, 27 Dec 2012 11:12:22 -0500
Sloper is really not the same thing as a parallel vertical wire at four feet as with the original poster. The vertical wire parallel to the tower at four feet has a much higher degree of coupling to
/archives//html/Topband/2012-12/msg00602.html (9,442 bytes)

130. Re: Topband: Cushcraft MA-160 (score: 2)
Author: Herb Schoenbohm <herbs@vitelcom.net>
Date: Tue, 20 Mar 2012 06:45:03 -0400
Paul, I really don't know if it makes a difference as the top wire is only supposed to do top loading and the goal is to minimize high angle radiation from the horizontal portion. I saw the crow's fo
/archives//html/Topband/2012-03/msg00210.html (12,364 bytes)

131. Topband: Fwd: Re: Cushcraft MA-160 (score: 2)
Author: Herb Schoenbohm <herbs@vitelcom.net>
Date: Sun, 18 Mar 2012 19:38:10 -0400
Dave, If you ground the top of the wire of a quarter-wave sloper to the tower and feed the bottom of the slant wire instead (assuming a ground rod and some radials laying on the ground at the feed po
/archives//html/Topband/2012-03/msg00161.html (8,623 bytes)

132. Re: Topband: Cushcraft MA-160 (score: 2)
Author: Herb Schoenbohm <herbs@vitelcom.net>
Date: Sat, 17 Mar 2012 07:50:34 -0400
Dave, If you ground the top of the wire of a quarter-wave sloper to the tower and feed the bottom of the slant wire instead (assuming a ground rod and some radials laying on the ground at the feed po
/archives//html/Topband/2012-03/msg00130.html (8,322 bytes)

133. Re: Topband: Phased Vertical Dipoles (score: 2)
Author: Dan Edward Dba East edwards <dan.n.edwards@sbcglobal.net>
Date: Tue, 11 Oct 2011 07:09:00 -0700 (PDT)
rich  while it was not a driven array, we tried a parasitic one. we had 3 1/2 wave slopers up at w5wmu...the guy wires on the 200' tower were NOT broken up, though, so, i hung the dipoles 1/2 way bet
/archives//html/Topband/2011-10/msg00065.html (8,237 bytes)

134. Re: Topband: Anttea Options for Upcoming Season (score: 2)
Author: <mikefurrey@att.net>
Date: Fri, 15 Jul 2011 08:17:01 -0500
Hi Ed, Nice thing to have access to. My thoughts would be for a delta loop ... easy to build, tune, match, but with a tower that tall, I think I would entertain building a bi-square. The wires from t
/archives//html/Topband/2011-07/msg00010.html (8,220 bytes)

135. Topband: Anttea Options for Upcoming Season (score: 2)
Author: Ed Richardson <ed_richardson@shaw.ca>
Date: Thu, 14 Jul 2011 12:46:23 -0500
Hello Topband Fans: I have been given an opportunity to install a simple wire antenna for 160m from a commercial tower here in VE4 land. The tower is 450 feet (aprox 140m) and is guyed at 5 levels I
/archives//html/Topband/2011-07/msg00008.html (7,526 bytes)

136. Re: Topband: Dealing with the rotor on a driven tower (score: 2)
Author: "Jim McDonald" <jim@n7us.net>
Date: Tue, 13 Jul 2010 21:36:54 -0500
I have a G-2800SDX. I don't feed the tower, which is a crank-up, though I have used quarter-wave slopers for 80 and 160 with no problems. Jim N7US --Original Message-- I spoke with Yaesu on this ques
/archives//html/Topband/2010-07/msg00065.html (7,786 bytes)

137. Topband: [Fwd: Re: Topbanders Try Harder] (score: 2)
Author: Herbert Schoenbohm <herbs@surfvi.com>
Date: Wed, 21 Oct 2009 18:53:38 -0400
reat story. Indeed the huge mega dxpedition churns out Qs that we all like and work for. But even the group that was FT5GA Made a lot of people happy with either a completely new country or some new
/archives//html/Topband/2009-10/msg00283.html (11,557 bytes)

138. Re: Topband: electrically shortening a tall grounded tower (score: 2)
Author: Herbert Schoenbohm <herbs@vitelcom.net>
Date: Sat, 26 Sep 2009 08:34:47 -0400
You might consider feeding it with a shunt fed cage at about 1/4 down from the top and attach elevated 1/4 wave radials at that point. I had a 308 foot tower and took the easy way out by running up a
/archives//html/Topband/2009-09/msg00123.html (9,079 bytes)

139. Re: Topband: 160m Sloper on Crank-up tower (score: 2)
Author: "George \(K8GG\) & Marijke Guerin" <gmguerin@voyager.net>
Date: Sun, 19 Apr 2009 22:13:08 -0400
I am trying to use a 160m sloper on a TRI-EX 54 foot crank-up tower. I have a L bracket affixed to the top section for the connection utilizing PL-259. The sloper wire is approx 143 feet long using f
/archives//html/Topband/2009-04/msg00056.html (7,643 bytes)

140. Topband: 160m Sloper on Crank-up tower (score: 2)
Author: Michael W Elliott <kq0b@sbcglobal.net>
Date: Sun, 19 Apr 2009 17:37:58 -0700 (PDT)
I am trying to use a 160m  sloper on a  TRI-EX  54 foot crank-up tower.    I have a L bracket affixed to the top section for the connection utilizing PL-259.   The sloper wire is approx 143 feet long
/archives//html/Topband/2009-04/msg00054.html (7,556 bytes)


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