CTU 2014 - Session 6 Part 1 - Low Band Receive Antenna Discussion Q - W3LPL
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hi all
annyone ever did test this setup?How does it perform
K9CT used one this year. He also has an 8 circle (not sure which one).
KK9K
-Original Message-
From: Gary K9GS
Sent: Tuesday, November 10, 2015 7:54 PM
To: topband@contesting.com
Subject: Re: Topband: Shared Apex Loop Array
Does anyone know if there is another source available
Here's the correct URL:
http://www.contestuniversity.com/attachments/W3LPL_Receiving_Antennas_2014.pptx
73, Tony K4QE
On Tue, Nov 10, 2015 at 9:26 PM, Jim Murray via Topband <
topband@contesting.com> wrote:
> Sri can't seem to get these links to work. This is listed on Google then
> follow
Sri can't seem to get these links to work. This is listed on Google then
follow receiving antennas, etc. Last try- hopefully it works.
W3LPL - Contest University
www.contestuniversity.com/.../W3LPL_Receiving_Antennas_2014.pptx
-
-
Receiving Antennas - or - What happened to the.
Thank you Tony!
On 11/10/2015 8:35 PM, Anthony Scandurra wrote:
Here's the correct URL:
http://www.contestuniversity.com/attachments/W3LPL_Receiving_Antennas_2014.pptx
73, Tony K4QE
On Tue, Nov 10, 2015 at 9:26 PM, Jim Murray via Topband <
topband@contesting.com> wrote:
Sri can't seem to
I have used 4 bi-direction 760 foot Beverages for 5 years or so here in
Michigan.
I put up the AS SAL-30 a month ago and my experience with the has been very
favorable.
I can't do a direct A to B with the Beverages right now so I must reserve
making any bold statements about the comparative
Is is a two element crossfire vertically polarized array made from loops.
Personally, if I were going to build one, I would spread the loops apart.
I would make the loop centers as far apart as possible, not to exceed 1/4
wavelength on the highest band.
Let me expand a bit how it works.
From: Tom W8JI w...@w8ji.com
To: bruce whitney zuce...@yahoo.com; Carl Luetzelschwab
carlluetzelsch...@gmail.com; topband@contesting.com
Sent: Monday, February 10, 2014 1:36 PM
Subject: Re: Topband: Shared Apex Loop Array
Is is a two element crossfire
Regardless, I am not sure if any sort of descriptive logical explanation
will ever allow me to understand what is going on with this antenna but I am
beginning to get comfortable with the modeling. The bigger question to me
is; do you think the 4NEC2 model results faithfully represent what is
Bruce,
I have considerable experience with loop arrays; whilst they are good
performers in an electrically noisy environment, they suffer from poor
directivity at higher angles. This can also be seen with EZNEC models by
looking at the AZ Plot with an Elevation angle of say 40 degrees.
The
-boun...@contesting.com] On Behalf Of Andy Ikin
Sent: Monday, February 10, 2014 4:12 PM
To: bruce whitney; Topband Reflector
Subject: Re: Topband: Shared Apex Loop Array
Bruce,
I have considerable experience with loop arrays; whilst they are good
performers in an electrically noisy environment
Hi Jim
The antenna geometry indicates that it should perform similar to a Waller
Flag *under the same conditions*.
The perform under same conditions is expected, however the WF RDF is
between 11.5db to 12 db. How that compares with a 8.5db RDF antenna?
I would say two antennas with the
since the currents in the center vertical wires are out of phase, you
should be able to eliminate three of those wires. Tie all the wires together
at the top and at the bottom, and use just one wire from top to bottom. Jim
- KR9U
That is similar to an antenna I tried in 2002 from the hardcoredx
I recently put reviews about the SAL-20 and SAL-30 on eham.net if anyone
is interested. Two on air demonstrations of the F/B are on YouTube.
Please refer to: http://www.youtube.com/watch?v=tVi5xQIXnXU (160m) and
http://www.youtube.com/watch?v=F_S7JwfEpQ8 (80m).
--
David J Rodman MD
superior RDF
performance.
73
Frank
W3LPL
- Original Message -
From: D Rodman MD rod...@buffalo.edu
To: topband@contesting.com
Sent: Sunday, February 9, 2014 5:19:29 PM
Subject: Topband: Shared Apex Loop Array
I recently put reviews about the SAL-20 and SAL-30 on eham.net
offer superior
RDF performance.
73
Frank
W3LPL
- Original Message -
From: D Rodman MD rod...@buffalo.edu
To: topband@contesting.com
Sent: Sunday, February 9, 2014 5:19:29 PM
Subject: Topband: Shared Apex Loop Array
I recently put reviews about the SAL-20 and SAL-30 on eham.net
I’m curious if it’s really any different than a two loop K9AY on one support.
Cecil
K5DL
From: Carl
Sent: February 9, 2014 1:36 PM
To: donov...@starpower.net; topband@contesting.com
Subject: Re: Topband: Shared Apex Loop Array
Is the SAL-30 available piecemeal? I have plenty
, February 9, 2014 5:19:29 PM
Subject: Topband: Shared Apex Loop Array
I recently put reviews about the SAL-20 and SAL-30 on eham.net if anyone
is interested. Two on air demonstrations of the F/B are on YouTube.
Please refer to: http://www.youtube.com/watch?v=tVi5xQIXnXU (160m) and
http
things.
Carl
KM1H
- Original Message -
From: donov...@starpower.net
To: topband@contesting.com
Sent: Sunday, February 09, 2014 1:13 PM
Subject: Re: Topband: Shared Apex Loop Array
See N3OC's review of the Shared Apex Loop Array in the February PVRC
Newsletter, page 5
http
Recently I came across an interesting advertisement for the Shared Apex Loop
Array, SALA, and thought I would poll the Top Banders to see if they have used
one and get your opinions before plunging into another project. Over the years
I have built and tried the K9AY, Flag. Pennant, DHDL,
Terry W7KW,
Yesterday I posted a message here about the Shared Apex Loop Array.
N3OC's review of it appears in the February PVRC newsletter.
My Product Review of it will appear in the April QST. My experience with it
has been extremely favorable on 160m, 80m and 40m as I cannot put up
multiple
Luetzelschwab carlluetzelsch...@gmail.com
To: topband@contesting.com
Sent: Saturday, February 8, 2014 4:12 PM
Subject: Topband: Shared Apex Loop Array
Terry W7KW,
Yesterday I posted a message here about the Shared Apex Loop Array.
N3OC's review of it appears in the February PVRC newsletter
I did a search and haven't found any previous comments on this reflector
about the Shared Apex Loop Array.
Has anyone tried it yet?
--
73, Tony K4QE
Elecraft K3 #6478 + P3 #2058 + KPA500 #844 + PR6 + K144XV
___
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