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Subject:
From:
Gerry Learry <[log in to unmask]>
Reply To:
For blind ham radio operators <[log in to unmask]>
Date:
Thu, 6 Dec 2012 17:32:26 -0700
Content-Type:
text/plain
Parts/Attachments:
text/plain (206 lines)
This sounds like to much fun.  I am going to build one.  I think I have 
everything except the wire.  I can't resist.  It's just to crude to be true, 
and here we go.
----- Original Message ----- 
From: "Phil Scovell" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Thursday, December 06, 2012 5:28 PM
Subject: Re: A SHORT VERTICAL FOR THE TOP BAND


> Correct.
>
> Phil.
> K0NX
>
>
>
>
> ----- Original Message ----- 
> From: "Gerry Learry" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Thursday, December 06, 2012 4:43 PM
> Subject: Re: A SHORT VERTICAL FOR THE TOP BAND
>
>
>> So each element was drilled in 2 places so that it was held on by the
>> Clamp
>> bolts?
>> ----- Original Message ----- 
>> From: "Phil Scovell" <[log in to unmask]>
>> To: <[log in to unmask]>
>> Sent: Thursday, December 06, 2012 1:11 PM
>> Subject: Re: A SHORT VERTICAL FOR THE TOP BAND
>>
>>
>>> Gerry,
>>>
>>> The X atop the capacity hat was created by using simple u clamps.  I
>>> drilled
>>> them originally to clamp around a boom from a 6 meter beam.  So they 
>>> were
>>> centered and I clamped on right above the other but at right angles so 
>>> it
>>> looked more like a wide spaced X.
>>>
>>> Phil.
>>>
>>>
>>>
>>>
>>> ----- Original Message ----- 
>>> From: "Gerry Learry" <[log in to unmask]>
>>> To: <[log in to unmask]>
>>> Sent: Thursday, December 06, 2012 4:55 AM
>>> Subject: Re: A SHORT VERTICAL FOR THE TOP BAND
>>>
>>>
>>>> So how did you attach the horizontal elements to the tube?  Did you
>>>> drill
>>>> through the tube at 2 apposing angles?  Did you flatten the center of
>>>> the
>>>> two elements and screw them together?  The rest is easy for me to
>>>> understand.
>>>> ----- Original Message ----- 
>>>> From: "Phil Scovell" <[log in to unmask]>
>>>> To: <[log in to unmask]>
>>>> Sent: Wednesday, December 05, 2012 8:47 PM
>>>> Subject: Re: A SHORT VERTICAL FOR THE TOP BAND
>>>>
>>>>
>>>>> Gerry,
>>>>>
>>>>> I was flying blind, sort of speak, by the seat of my pants, building
>>>>> this
>>>>> vertical and pieced together things I had picked up discussing 
>>>>> antennas
>>>>> with
>>>>> other hams so don't feel bad about not getting how it was assembled. 
>>>>> I
>>>>> made
>>>>> the vertical antenna in two pieces in order to climb up to the roof on
>>>>> my
>>>>> tower bolted to the back of the house.  The antenna was bolted to the
>>>>> other
>>>>> end of the roof so I could get right to it as needed for fine tuning.
>>>>> Right
>>>>> about roof level, the first section stuck up, therefore about a foot 
>>>>> or
>>>>> two
>>>>> over the peak of the roof.  The second section of antenna was made up
>>>>> of
>>>>> three parts.  Two pieces of tubing, one short and one longer, and
>>>>> between
>>>>> the two was a coil form with wire wrapped around it.  It was insulated
>>>>> wire
>>>>> and I used about three feet of PVC tubing as my coil form.  The longer
>>>>> piece
>>>>> of tubing that served as the bottom of the assembly, I think it was 7
>>>>> feet
>>>>> of aluminum tubing, I stuck up inside the bottom of the PVC pipe the
>>>>> wire
>>>>> was wound around, or coiled, around.  It was wrapped closely, like a
>>>>> bull
>>>>> constrictor snake, because the wire, as I mentioned, was insulated and
>>>>> I
>>>>> was
>>>>> only running 100 watts.  So that insured there would be no arking when
>>>>> transmitting.  If you run higher levels of power, it is best to use
>>>>> coax,
>>>>> the heavier the better, based upon the power, because the voltage is
>>>>> very
>>>>> high on the coil when transmitting.  Next, I took another 3 foot 
>>>>> length
>>>>> of
>>>>> aluminum tubing and stuck it inside the top of the pvc pipe.  The pvc
>>>>> pipe
>>>>> was big enough so I could drill into the tubing and the pvc pipe to
>>>>> hold
>>>>> the
>>>>> bottom tubing and the top tubing to the pipe or coil of wire.  This is
>>>>> all
>>>>> vertical so far.  The signal, therefore, had to pass through the coil
>>>>> before
>>>>> getting above the pvc pipe to the top hat, which was the difference
>>>>> between
>>>>> 32 and about 130 feet; which is a quarter wave on 160 meters.  About 
>>>>> 98
>>>>> feet
>>>>> of coil wire in other words.  The horizontal part of the top hat is
>>>>> also
>>>>> aluminum tubing whereby I used simple hardware clamps to clamp them in
>>>>> the
>>>>> shape of the letter X at the top of everything, that is, at the very
>>>>> tip
>>>>> of
>>>>> the tubing.  The reason I made the whole top assembly separate, was so
>>>>> I
>>>>> could climb the roof, walk over to the vertical clamped to the end of
>>>>> the
>>>>> peak of the roof, and loosen another clamp which held the whole top
>>>>> assembly
>>>>> in place.  Once I put the X on top, I didn't have to raise or lower 
>>>>> the
>>>>> top
>>>>> assembly more than once or twice to get the antenna to resonate where 
>>>>> I
>>>>> wanted it in the CW portion of 160 meters.  It was fun making it, I
>>>>> learned
>>>>> a lot, and from that time on, when I put up a bigger tower that same
>>>>> year
>>>>> but in this house we bought that year, I really got into all kinds of
>>>>> wires
>>>>> and loops and shunt feeding my tower, and trying phased verticals and
>>>>> wire
>>>>> antennas.
>>>>>
>>>>> Phil.
>>>>> K0NX
>>>>>
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> ----- Original Message ----- 
>>>>> From: "Gerry Learry" <[log in to unmask]>
>>>>> To: <[log in to unmask]>
>>>>> Sent: Wednesday, December 05, 2012 7:53 PM
>>>>> Subject: Re: A SHORT VERTICAL FOR THE TOP BAND
>>>>>
>>>>>
>>>>>>I don't understand how it is assembled or connected to the top of the
>>>>>> antenna.  I understand that the two elements are in a X pattern and
>>>>>> they
>>>>>> are
>>>>>> both horizontal, but I don't understand the mechanics.
>>>>>> ----- Original Message ----- 
>>>>>> From: "Phil Scovell" <[log in to unmask]>
>>>>>> To: <[log in to unmask]>
>>>>>> Sent: Tuesday, December 04, 2012 1:50 PM
>>>>>> Subject: Re: A SHORT VERTICAL FOR THE TOP BAND
>>>>>>
>>>>>>
>>>>>>> Gerry,
>>>>>>>
>>>>>>> What specifically were you asking about as far as the capacity hat 
>>>>>>> is
>>>>>>> concerned?
>>>>>>>
>>>>>>> Phil.
>>>>>>> K0NX
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> ----- Original Message ----- 
>>>>>>> From: "Gerry Learry" <[log in to unmask]>
>>>>>>> To: <[log in to unmask]>
>>>>>>> Sent: Tuesday, December 04, 2012 3:39 AM
>>>>>>> Subject: Re: A SHORT VERTICAL FOR THE TOP BAND
>>>>>>>
>>>>>>>
>>>>>>>> Can you describe the construction of the top hat a little more?
>>>>>>
>>>>
>> 

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