Will they interact? Probably. Will they still work? Absolutely!! Go for
it and if it really creates more of a problem than you are willing to live
with, you can always change it later.
NG9R
----- Original Message -----
From: <towertalk-request@contesting.com>
To: <towertalk@contesting.com>
Sent: Tuesday, January 13, 2004 11:00 AM
Subject: TowerTalk Digest, Vol 13, Issue 31
> Send TowerTalk mailing list submissions to
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> Today's Topics:
>
> 1. beams too close? (=?iso-8859-1?Q?Dave_N=D8RQ?=)
> 2. Re: Anyone not need a permit to install their tower? -No
> permit Required (Mark Beckwith)
> 3. Re: Problems on a 2el vertical Array (Mark Beckwith)
> 4. Re: Problems on a 2el vertical Array
>
>
> ----------------------------------------------------------------------
>
> Date: Mon, 12 Jan 2004 14:34:03 -0600
> From: =?iso-8859-1?Q?Dave_N=D8RQ?= <n0rq-1@dfwair.net>
> To: <TOWERTALK@contesting.com>
> Subject: [TowerTalk] beams too close?
> Message-ID: <000901c3d94b$6c5a7cf0$6700a8c0@ham1>
> References: <IKEIKEHDIHKDIBOLIACGEEECDAAA.jlberry@direcway.com>
> Content-Type: text/plain;
> charset="iso-8859-1"
> MIME-Version: 1.0
> Content-Transfer-Encoding: 8bit
> Precedence: list
> Message: 1
>
> I would like to add a 2 meter CW/SSB yagi to my tower, but am concerned
> about it being too close to existing antennas.
>
> Right now, on a 60' tower, I have an HF beam (Force 12 XR-5, 18' boom, 10
> through 20 meters) just above the thrust bearing, and 7 feet above that,
at
> the top of the mast, I have an M2 6M5X (6 meters, 5 elements, also 18'
> boom). Is it feasible to add something like an M2 2M9SSB (2m CW/SSB, 9
> elements, 12' boom) halfway between the two??? Obviously, I don't want to
> hurt the performance of the HF or 6m beams. A little interaction is OK,
but
> having them royally mess each other up wouldn't be good.
>
> It sure would be nice to get a decent 2m horizontal beam up around the 65'
> mark, but if this really isn't a good idea, I could mount it on a little
> tower at about the 30' mark. However, I figured 65' in a less than ideal
> spot would be better than a better spot at 30'. I'm not too concerned
about
> the 2m beam pattern -- if it works half-decently, it will be fine. I am
> more concerned about hurting the HF/6m stuff.
>
> Comments appreciated!
>
> Dave NØRQ
> n0rq@arrl.net
> www.qsl.net/n0rq
>
> ------------------------------
>
> Date: Mon, 12 Jan 2004 15:21:26 -0600
> From: "Mark Beckwith" <mark@concertart.com>
> To: <towertalk@contesting.com>
> Subject: Re: [TowerTalk] Anyone not need a permit to install their
tower? -No
> permit Required
> Message-ID: <021f01c3d952$184ab240$0100a8c0@T>
> References: <3FFF5ACC@mailserv66>
> Content-Type: text/plain;
> charset="iso-8859-1"
> MIME-Version: 1.0
> Content-Transfer-Encoding: 7bit
> Precedence: list
> Message: 2
>
> I thought that it would go without saying that one would request a return
> receipt on such a doc. I was wrong. Now it goes WITH saying.
>
> Mark, N5OT
>
> ----- Original Message -----
> From: <kenneth.lowrey@wright.edu>
> To: <mark@concertart.com>; <towertalk@contesting.com>
> Sent: Friday, January 09, 2004 11:23 AM
> Subject: RE: [TowerTalk] Anyone not need a permit to install their
> tower? -No permit Required
>
>
> > However, they could also say that they never received the letter.
> >
> > Ken
> > W8ND
> >
> > >===== Original Message From Mark Beckwith <mark@concertart.com> =====
> > >> Write the city planner a letter, stating the date and hour of your
> > >meeting, the
> > >> purpose thereof, and the results. Then ask the question if this is
> what
> > >he said or
> > >> word it in away that asks a similar question like did I understand
> > >correctly that I ....
> > >
> > >And that way, if they don't respond, you can make a case that they are
in
> > >agreement with what you wrote.
> > >
> > >Mark, N5OT
> > >
> > >
> > >_______________________________________________
> > >
> > >See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless
> > Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with
> any
> > questions and ask for Sherman, W2FLA.
> > >
> > >_______________________________________________
> > >TowerTalk mailing list
> > >TowerTalk@contesting.com
> > >http://lists.contesting.com/mailman/listinfo/towertalk
> >
> > _______________________________________________
> >
> > See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless
> Weather Stations", and lot's more. Call Toll Free, 1-800-333-9041 with
any
> questions and ask for Sherman, W2FLA.
> >
> > _______________________________________________
> > TowerTalk mailing list
> > TowerTalk@contesting.com
> > http://lists.contesting.com/mailman/listinfo/towertalk
> >
>
>
> ------------------------------
>
> Date: Mon, 12 Jan 2004 15:23:19 -0600
> From: "Mark Beckwith" <mark@concertart.com>
> To: <towertalk@contesting.com>
> Subject: Re: [TowerTalk] Problems on a 2el vertical Array
> Message-ID: <022d01c3d952$67c81f60$0100a8c0@T>
> References:
> <3FFEAC87.2020707@gmx.de><007001c3d6ca$a634ec90$36a8a8c0@LAPTOP152422>
> <3FFF8276.1040400@gmx.de>
> Content-Type: text/plain;
> charset="iso-8859-1"
> MIME-Version: 1.0
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> Precedence: list
> Message: 3
>
> > Right. Anyway, I should have in *all* situations more than 6dB f/b
ratio.
>
> Except for the scenario where the signal is arriving on a skewed path?
>
> Mark, N5OT
>
> ------------------------------
>
> Date: Mon, 12 Jan 2004 21:25:29 EST
> From: K3BU@aol.com
> To: towertalk@contesting.com
> Subject: Re: [TowerTalk] Problems on a 2el vertical Array
> Message-ID: <171.2890701f.2d34b119@aol.com>
> Content-Type: text/plain; charset="ISO-8859-1"
> MIME-Version: 1.0
> Content-Transfer-Encoding: quoted-printable
> Precedence: list
> Message: 4
>
> In a message dated 1/12/04 7:06:53 PM Eastern Standard Time,=20
> T.Wellnitz@gmx.de writes:
> Yuri, you don't have to disconnect the shields. All you need is to
shorten=20
> the inner and outer conductor if the phaseline is about 80=B0-100=B0
(electr=
> ically)=20
> long or have an open feed line for 170=B0-190=B0.
>
> You do if you want the triangular array perform the way it is supposed
to=20
> work with WX0B stackmatch. It can work as two driven elements fed in phase
w=
> ith=20
> third as reflector (frequency shifted by open coax stub/feedline) or as
one=20
> driven element with two similar reflectors, giving 6 directions. In
theory.=20=
> In=20
> practice, it sucks, no pattern, dummiest three element omnidirectional
"arra=
> y".=20
> If you isolate the reflecotrs coax shields from the phasing unit, then
it=20
> works. That is, with Stackmatch. Other phasing system will work
differently.
>
> Yuri, K3BU
> ------------------------------
>
> _______________________________________________
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> TowerTalk@contesting.com
> http://lists.contesting.com/mailman/listinfo/towertalk
>
>
> End of TowerTalk Digest, Vol 13, Issue 31
> *****************************************
>
_______________________________________________
See: http://www.mscomputer.com for "Self Supporting Towers", "Wireless Weather
Stations", and lot's more. Call Toll Free, 1-800-333-9041 with any questions
and ask for Sherman, W2FLA.
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
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