[50mhz] [Wswss] [Fwd: Re: Sample of 6m Antenna Comparison Table]

Fri Jan 23 20:19:40 EST 2009

Awesome. Will this data also show less gain but quieter off the sides and back of antenna options as well?
I'm personally looking forward to this and appreaciate Lionel's and Lance's time.

Todd W6TOD

--- On Thu, 1/22/09, Lance Collister <w7gj at q.com> wrote:

From: Lance Collister <w7gj at q.com>
Subject: [Wswss] [Fwd: Re: Sample of 6m Antenna Comparison Table]
To: "PNWVHFS" <PNWVHFS at googlegroups.com>, "50 MHZ Mailing List" <50mhz at mailman.qth.net>, "Magic Band EME" <magic at 6meme.com>, "Rocky Mountain VHF Plus" <rmvhf at rmvhf.org>
Cc: "VE7BQH" <ve7bqh at shaw.ca>, "Western States Weak Signal Society" <wswss at mailman.qth.net>
Date: Thursday, January 22, 2009, 3:44 PM

Hello!

VE7BQH has very generously agreed to do computer modeling of a number of
popular 
6m antennas and prepare a table similar to the one that he developed some years

ago to help 2m EME operators compare various 2m antennas and arrays.

Much of the information currently available regarding 6m beams seems to be 
confusing and in different terms, making it difficult to make decisions
regarding 
what antenna to use, and/or what antennas to stack and/or how to stack them for

the highest gain.   We would greatly appreciate it if you could provide any 
comments regarding the value of this project before Lionel proceeds any
further.

I promise to widely distribute the final product when it is finished.  I look 
forward to your comments. Thank you very much for your input.  VY 73, Lance

-------- Original Message --------
Subject: Re: Sample
Date: Thu, 22 Jan 2009 19:54:28 +0000
From: Lionel H. Edwards <ve7bqh at shaw.ca>
To: w7gj at q.com
References:
<5.1.0.14.2.20090121031118.03462760 at shawmail.cg.shawcable.net> 
<5.1.0.14.2.20090120213738.03460d20 at shawmail.cg.shawcable.net> 
<5.1.0.14.2.20090120195304.03458500 at shawmail.cg.shawcable.net> 
<5.1.0.14.2.20090120175603.03459ec0 at shawmail.cg.shawcable.net> 
<5.1.0.14.2.20090120033704.03456ec0 at shawmail.cg.shawcable.net> 
<5.1.0.14.2.20090120033704.03456ec0 at shawmail.cg.shawcable.net> 
<5.1.0.14.2.20090120175603.03459ec0 at shawmail.cg.shawcable.net> 
<5.1.0.14.2.20090120195304.03458500 at shawmail.cg.shawcable.net> 
<5.1.0.14.2.20090120213738.03460d20 at shawmail.cg.shawcable.net> 
<5.1.0.14.2.20090121031118.03462760 at shawmail.cg.shawcable.net>

Lance:

Lets not concentrate on format for now.

We, make that you need to concentrate on the data being useful on this band..

I have filled in few more antennas to give better representation.

I do not want to go any further without being SURE this will be meaningful
to the 6M group. Even to do what I have done as a sample takes time.
Therefore, I do not want to get down stream and find I have to make major
changes.

I need you to contact a reasonable sample of the 6M people to see if we are
on the right track.

At 04:26 AM 1/21/09 +0000, you wrote:
>Lionel H. Edwards wrote:
>>Lance:
>>
>>The problem is if I have to many lines across a row, it becomes a
problem 
>>to print. The 144 table is already to long to print without altering
the tabs.
>>The last thought I sent you causes wrap around without changing the
margins.
>>
>>It has to print on a 8.5" x 11" paper to be practical
>>
>>The information is not an issue
>Can it be printed in a "LANDSCAPE FORMAT"?  73, Lance
>
>--
>Lance Collister, W7GJ (ex: WN3GPL, WA3GPL, WA1JXN, WA1JXN/C6A, ZF2OC/ZF8)
>P.O. Box 73
>Frenchtown, MT  59834  USA
>QTH: DN27UB
>TEL: (406) 626-5728   URL: http://www.bigskyspaces.com/w7gj
>2m DXCC #11, 6m DXCC #815
>
>
>
>
>
>--
>No virus found in this incoming message.
>Checked by AVG. Version: 7.5.552 / Virus Database: 270.10.9/1900 - Release 
>Date: 1/18/09 12:11 PM

73,
Lionel, VE7BQH
ve7bqh at shaw.ca

-- 
Lance Collister, W7GJ (ex: WN3GPL, WA3GPL, WA1JXN, WA1JXN/C6A, ZF2OC/ZF8)
P.O. Box 73
Frenchtown, MT  59834  USA
QTH: DN27UB
TEL: (406) 626-5728   URL: http://www.bigskyspaces.com/w7gj
2m DXCC #11, 6m DXCC #815
                                              SIMULATIONS OF A 2 and 4 BAY ARRAY

                                                OF YAGI ANTENNAS ON 6 METERS
                                                        50.150 MHz

                                            [Opt Stacking]                 [75%
Stacking]
                              1 Ant              4 Ant  2E ant 2V ant          
 4 Ant  2E ant 2H ant
 TYPE OF                L     GAIN      E    H   Gain   Gain   Gain    E    H  
 Gain   Gain   Gain       Z
 ANTENNA               (WL)   (dBd)    (M)  (M)  (dBd)  (dBd)  (dBd   (M)  (M) 
 (dBd)  (dBd)  (dBd)    (ohms)

 Cushcraft A50-3S      0.29    5.27    5.52 3.64 12.63   8.77   9.39  4.14 2.73
 10.91   8.09   8.22     42.3 
 Cushcraft A50-5S      0.59    7.57    6.52 5.11 14.21  10.77  11.04  4.89 3.83
 13.08  10.37  10.54     40.3
 W5WVO CC A50-5S MOD   0.87    9.11    7.34 6.09 15.33  12.26  12.21  5.51 4.57
 14.41  11.90  11.82     16.9
 M² 6M5X               0.91    9.42    7.65 7.07 15.66  12.59  12.60  5.74
5.30  14.91  12.20  12.34     11.7 
 M² 6M7JHV             1.26   10.97    8.56 7.65 17.08  14.07  14.07  6.42
5.74  16.10  13.64  13.59     31.4   
 YU7EF 9               2.16   11.83    9.18 8.30 17.90  14.89  14.92  6.88 6.22
 16.84  14.44  14.37     52.7 
 M² 6M9KHW             2.51   12.75   10.59 9.89 18.85  15.79  15.87  7.94
7.42  17.51  15.21  15.17     20.7                      
_______________________________________________
Wswss mailing list
Wswss at mailman.qth.net
http://mailman.qth.net/mailman/listinfo/wswss

-------------- next part --------------
An HTML attachment was scrubbed...
URL: http://mailman.qth.net/pipermail/50mhz/attachments/20090123/341ddfeb/attachment.html 