Re: #2 Question from Charlie Vaughn I would make the top loading wires
a little longer to radiate down on 1.825, say about 63' longer ! Vaughn
Worth K3VW
In a message dated 5/4/2010 3:18:36 P.M. Eastern Daylight Time,
topband-request@contesting.com writes:
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Today's Topics:
1. Hi all (Adam Grossmyer)
2. 5N7M QSL information (Price Smith)
3. Top Loaded Vertical (Charlie & Vivian Vaughan)
4. 2010 Antenna Forum in Dayton (Tim Duffy K3LR)
5. Topband Dinner in Dayton (Jim Brown)
6. Re: 5N7M QSL information (Garry Shapiro)
7. Re: 5N7M QSL information (Gary Hinson)
8. 5N7M QSL information (Ian Wade G3NRW)
9. KH7C QSLs (Merv Schweigert)
10. Re: 5N7M QSL information (Bert Barry)
11. Re: Top Loaded Vertical (Herb Schoenbohm)
----------------------------------------------------------------------
Message: 1
Date: Mon, 3 May 2010 12:33:19 -0400
From: Adam Grossmyer <n8mox.oh@gmail.com>
Subject: Topband: Hi all
To: topband@contesting.com
Message-ID:
<z2p64bdf1ec1005030933k5de98a97w51d8014072587769@mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1
I just wanted to drop a line and say hi to all, My name is Adam, call sign
is N8MOX, I signed up to see if I could learn a thing or 2 from the
group. Just got back into the hobby last year after a 15 year break, and
notice that there isn't a whole bunch of guys in the clubs I am in that do
a
lot on 160. I hope to meet some of you on the air, or maybe in Dayton
this
year.
73
Adam
N8MOX
------------------------------
Message: 2
Date: Mon, 3 May 2010 14:18:58 -0500
From: "Price Smith" <w0rihps@sbcglobal.net>
Subject: Topband: 5N7M QSL information
To: <topband@contesting.com>
Message-ID: <62011A9BAEB948B89DD353627DBC2A26@haroldfd2f6007>
Content-Type: text/plain; charset="iso-8859-1"
I worked Ivan, 5N7M in January for a new one on 160.
I QSLed Ivan direct and received my envelope back today marked
"UNKNOWN". I used QRZ.com's address. By the way, the envelope looks like
it went through "War Zone".
Does anyone have a good address for 5N7M?
73 Price W0RI
------------------------------
Message: 3
Date: Mon, 3 May 2010 17:28:28 -0400
From: "Charlie & Vivian Vaughan" <vcm4@bellsouth.net>
Subject: Topband: Top Loaded Vertical
To: <topband@contesting.com>
Message-ID: <CE30F65B03324E8B960A73A1735996F3@yourze8cxvr8tt>
Content-Type: text/plain; charset="us-ascii"
I have an aluminum vertical element that is 67' tall. I want to top-load
it
on 160 meters and would like to use a three wire approach for physical
symmetry in support of the vertical element. Does anyone have an idea of
about how long the three wire elements would need to be to top-load it for
160? I was guessing about 40' but that was a wild guess. It would be nice
to know approximately where to start if anyone has had similar experience.
Thanks K4UWH
------------------------------
Message: 4
Date: Mon, 3 May 2010 18:25:09 -0500
From: "Tim Duffy K3LR" <k3lr@k3lr.com>
Subject: Topband: 2010 Antenna Forum in Dayton
To: "'Tower and HF antenna construction topics.'"
<towertalk@contesting.com>, <topband@contesting.com>
Message-ID: <677EEC66D63342FDBB852D699BFF47BD@laptop>
Content-Type: text/plain; charset="us-ascii"
Friday, May 14, 2010
HARA Arena
2:30 p.m. - 5:00 p.m. Room 1
Moderator: Moderator: Tim Duffy, K3LR
Speakers:
"Is Your Antenna Properly Insured" Ray Fallen, ND8L
"The 8 Vertical Receiving Array" Joel Harrison, W5ZN and Bob McGwier, N4HY
"Exotic Antenna Pattern Measurements" Greg Ordy, W8WWV
"What's New at SteppIR" Mike Mertel, K7IR
Lots of great Dayton information can be found here:
http://contestuniversity.com/attachments/dayton2010.pps
73!
Tim K3LR
------------------------------
Message: 5
Date: Mon, 03 May 2010 22:41:52 -0700
From: "Jim Brown" <jim@audiosystemsgroup.com>
Subject: Topband: Topband Dinner in Dayton
To: "TopBand List" <topband@contesting.com>
Message-ID: <20100504054201.6F738586C2@gw1.nlenet.net>
Content-Type: text/plain; charset="us-ascii"
I've finally booked flights. Anyone have a ticket to the topband dinner
that
you don't need?
73,
Jim K9YC
------------------------------
Message: 6
Date: Mon, 03 May 2010 22:54:16 -0700
From: Garry Shapiro <garry@ni6t.com>
Subject: Re: Topband: 5N7M QSL information
To: topband@contesting.com
Message-ID: <4BDFB688.7090409@ni6t.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Price,
I also worked 5N7M.
I QSLed OM3CGN in January and have received nothing. I emailed him a
month or so ago to inquire when we could expect cards---and have also
received nothing. I'm ready to send another card--but to where?
Garry, NI6T
On 5/3/2010 12:18 PM, Price Smith wrote:
> I worked Ivan, 5N7M in January for a new one on 160.
>
> I QSLed Ivan direct and received my envelope back today marked
> "UNKNOWN". I used QRZ.com's address. By the way, the envelope looks like
> it went through "War Zone".
>
> Does anyone have a good address for 5N7M?
>
> 73 Price W0RI
> _______________________________________________
> UR RST IS ... ... ..9 QSB QSB - hw? BK
>
>
------------------------------
Message: 7
Date: Tue, 4 May 2010 18:32:27 +1200
From: "Gary Hinson" <Gary@isect.com>
Subject: Re: Topband: 5N7M QSL information
To: <topband@contesting.com>
Message-ID: <3DD0F2F045524F7AB5BF357479A282E2@tooblue>
Content-Type: text/plain; charset="us-ascii"
Hi Price.
http://www.ik3qar.it/manager/man_result.php?call=5n7m&s=n gives QSL via
OM3CGN:
Ivan Gombos, Dr.Clementisa 4/161, 97901 Rimavska Sobota, Slovak Republic
Don't know if it works - just passing on the info.
GL
73
Gary ZL2iFB
> -----Original Message-----
> From: topband-bounces@contesting.com
> [mailto:topband-bounces@contesting.com] On Behalf Of Price Smith
> Sent: Tuesday, 4 May 2010 7:19 AM
> To: topband@contesting.com
> Subject: Topband: 5N7M QSL information
>
> I worked Ivan, 5N7M in January for a new one on 160.
>
> I QSLed Ivan direct and received my envelope back today marked
> "UNKNOWN". I used QRZ.com's address. By the way, the envelope
> looks like
> it went through "War Zone".
>
> Does anyone have a good address for 5N7M?
>
> 73 Price W0RI
> _______________________________________________
> UR RST IS ... ... ..9 QSB QSB - hw? BK
------------------------------
Message: 8
Date: Tue, 4 May 2010 10:57:31 +0100
From: Ian Wade G3NRW <g3nrw@yahoo.co.uk>
Subject: Topband: 5N7M QSL information
To: topband@contesting.com
Message-ID: <nw2WO1DL++3LFwIf@ntlworld.com>
Content-Type: text/plain;charset=us-ascii;format=flowed
From: Price Smith <w0rihps@sbcglobal.net>
Date: Mon, 3 May 2010 Time: 14:18:58
>I worked Ivan, 5N7M in January for a new one on 160.
>
>I QSLed Ivan direct and received my envelope back today marked
>"UNKNOWN". I used QRZ.com's address. By the way, the envelope looks like
>it went through "War Zone".
>
>Does anyone have a good address for 5N7M?
>
>73 Price W0RI
>_______________________________________________
Is this street address any help?
http://www.ik3qar.it/manager/man_result.php?call=OM3CGN
--
73
Ian, G3NRW
------------------------------
Message: 9
Date: Tue, 04 May 2010 01:16:49 -1000
From: Merv Schweigert <k9fd@flex.com>
Subject: Topband: KH7C QSLs
Cc: topband@contesting.com
Message-ID: <4BE00221.8050309@flex.com>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Thought I had better post a note that I am not able to answer QSL
requests for a short time,
I am currently in Houston Tx , my wife is getting treatment at
MD Anderson cancer center and we will be here at least another 30
days or more.
I know there are some QSL requests piling up at home and I
apologize I am not able to reply at this time. I did not think we
would be gone this long and did not bring cards and logs with me
here.
I will QSL 100 percent as normal when I return to KH7 so please
be patient. Thanks very much. Aloha 73 Merv KH7C
------------------------------
Message: 10
Date: Tue, 04 May 2010 07:56:43 -0400
From: Bert Barry <bbarry@simplysurf.net>
Subject: Re: Topband: 5N7M QSL information
To: Price Smith <w0rihps@sbcglobal.net>
Cc: topband@contesting.com
Message-ID: <4BE00B7B.3010402@simplysurf.net>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Price Smith wrote:
> I worked Ivan, 5N7M in January for a new one on 160.
>
> I QSLed Ivan direct and received my envelope back today marked
> "UNKNOWN". I used QRZ.com's address.
>
Hi Price,
The current QRZ address for Ivan is simply Abuja, Nigeria. Abuja is the
new capital of Nigeria and has a population of over half a million. If
you used simply "Abuja Nigeria" it is not surprising that an envelope
addressed to a person with a foreign name would be returned. Try Ivan's
home call and address in Slovakia: OM3CGN. But don't hold your breath,
he will probably answer QSL's when he next returns home.
Good luck. I'm waiting too. Bert, VE3QAA
------------------------------
Message: 11
Date: Tue, 04 May 2010 08:51:04 -0400
From: Herb Schoenbohm <herbs@vitelcom.net>
Subject: Re: Topband: Top Loaded Vertical
To: Charlie & Vivian Vaughan <vcm4@bellsouth.net>
Cc: topband@contesting.com
Message-ID: <4BE01838.50505@vitelcom.net>
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Charlie K4UWH Wrote:
> I have an aluminum vertical element that is 67' tall. I want to
top-load it
> on 160 meters and would like to use a three wire approach for physical
> symmetry in support of the vertical element.
> 160? I was guessing about 40' but that was a wild guess.
>
> _______________________________________________
>
>
Charlie remember any top loading connected that far (20') below the top
reduces the over all vertical element height above that point and you
will then end up with a 40' top loaded vertical rather than a 67' foot
top loaded vertical. I would recommend guying with two sets of guying
with insulated material such as Philystran at 40 feet. Put the top
loading set from the top sloping down at an angle (with respect to the
pole) of no less than 45 degrees and no more than 25' where insulators
are placed. (Top loading sloping wires have a point of cancellation if
they are to long or the angle is acute.)
Break up any remaining wires to ground at least every 40-50 feet. You
can get about 10% more top loading by connecting the top three wire
spiders together end to end (inside the insulators) to form a skeleton
cone. This should increase the amount of top loading and bring you
closer to 1/4 wave. These are approximations but if you know someone
who can model this you can have more assurances that what you are
putting up will give you the maximum efficiency at the radiation angle
lobe you are looking for.
If the pole is insulated and you have a directed feed the 20 to 30 ohms
resulting impedance, maybe even a bit lower if you have a near perfect
ground, can be matched with an Un-Un or simple L network. If the pole
is grounded you can shunt feed it with a tap about 30 to 40 feet but you
will need to tune out the inductive reactance of the shunt with an ATU.
Remember that resonance is not crucial. What is more important is
matching what you end up with and the ground system this Marconi will
need to make it efficient.
Good Luck with your project.
Herb Schoenbohm, KV4FZ.
------------------------------
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End of Topband Digest, Vol 89, Issue 4
**************************************
_______________________________________________
UR RST IS ... ... ..9 QSB QSB - hw? BK
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