[50mhz] [PNWVHFS] Re: [Fwd: Re: Sample of 6m Antenna Comparison Table]
Lance Collister
w7gj at q.com
Fri Jan 23 10:52:08 EST 2009
Bill W5WVO wrote:
> Terrific project!
>
> Lionel contacted me already about including my
> lengthening/optimizing mod on the CC A50-5S, which has been widely
> distributed and duplicated in the field. Others' designs made
> using YO (as was mine) would be very useful, assuming they have
> been physically done a couple times and the performance matches
> the model. :-) I've found this is virtually always the case for
> any "reasonable" YO designs (i.e., not so dimensionally critical
> and/or narrow-banded that they can't be successfully constructed
> by most hams).
>
> YO rules! Bummer you can't buy the amateur version of this
> software any more. But you can't blame K6STI, there was rampant
> piracy going on...
>
> Bill W5WVO
>
>
> ----- Original Message -----
> From: "Lance Collister" <w7gj at q.com>
> 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>
> Sent: Thursday, January 22, 2009 4:44 PM
> Subject: [50mhz] [Fwd: Re: Sample of 6m Antenna Comparison Table]
>
>
>> 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
>
>
> ------------------------------------------------------------------
> --------------
>
>
>> Moderator: Ray Brown, KB0STN
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>
>
>
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>
Hello Bill,
Yes, MNI MNI TNX for your great web page and the very successful modification to
the ubiquitous Cush Craft 5 element antenna! I am just amazed at the corners of
the world where these things still turn up! I sure hope more owners will visit
your web page! VY 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
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