Topband: Topband Digest, Vol 89, Issue 4

K3vw at aol.com K3vw at aol.com
Tue May 4 16:30:54 PDT 2010


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 at 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 at gmail.com>
Subject: Topband: Hi all
To:  topband at contesting.com
Message-ID:
<z2p64bdf1ec1005030933k5de98a97w51d8014072587769 at 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 at sbcglobal.net>
Subject: Topband: 5N7M QSL information
To:  <topband at contesting.com>
Message-ID:  <62011A9BAEB948B89DD353627DBC2A26 at 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 at bellsouth.net>
Subject: Topband: Top Loaded Vertical
To:  <topband at contesting.com>
Message-ID:  <CE30F65B03324E8B960A73A1735996F3 at 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 at k3lr.com>
Subject: Topband: 2010 Antenna Forum in Dayton
To:  "'Tower and HF antenna construction topics.'"
<towertalk at contesting.com>,      <topband at contesting.com>
Message-ID:  <677EEC66D63342FDBB852D699BFF47BD at 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 at audiosystemsgroup.com>
Subject: Topband: Topband Dinner in  Dayton
To: "TopBand List" <topband at contesting.com>
Message-ID:  <20100504054201.6F738586C2 at 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 at ni6t.com>
Subject: Re: Topband: 5N7M QSL information
To:  topband at contesting.com
Message-ID:  <4BDFB688.7090409 at 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 at isect.com>
Subject: Re: Topband: 5N7M QSL information
To:  <topband at contesting.com>
Message-ID:  <3DD0F2F045524F7AB5BF357479A282E2 at 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 at contesting.com 
>  [mailto:topband-bounces at contesting.com] On Behalf Of Price Smith
> Sent:  Tuesday, 4 May 2010 7:19 AM
> To: topband at 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 at yahoo.co.uk>
Subject: Topband:  5N7M QSL  information
To: topband at contesting.com
Message-ID:  <nw2WO1DL++3LFwIf at ntlworld.com>
Content-Type:  text/plain;charset=us-ascii;format=flowed

From: Price Smith  <w0rihps at 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 at flex.com>
Subject: Topband: KH7C QSLs
Cc:  topband at contesting.com
Message-ID:  <4BE00221.8050309 at 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 at simplysurf.net>
Subject: Re: Topband: 5N7M QSL  information
To: Price Smith <w0rihps at sbcglobal.net>
Cc:  topband at contesting.com
Message-ID:  <4BE00B7B.3010402 at 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 at vitelcom.net>
Subject: Re: Topband: Top Loaded Vertical
To:  Charlie & Vivian Vaughan <vcm4 at bellsouth.net>
Cc:  topband at contesting.com
Message-ID:  <4BE01838.50505 at 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
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