[Lowfer] #18 wire

K2ORS k2ors at verizon.net
Sat Dec 3 23:12:58 EST 2011 

Bill,
  Interesting antenna.  Might be interesting to try it on 500kHz as well, it 
should only take about 250uH to resonate it on 500.

73 Warren

----- Original Message ----- 
From: "Bill Ashlock" <ashlockw at hotmail.com>
To: <lowfer at mailman.qth.net>
Sent: Saturday, December 03, 2011 9:01 PM
Subject: Re: [Lowfer] #18 wire


>
> Hi Rick,
>
> Yah, a bit of a shift in loyalty from TX loops to a vertical (although not 
> quite a traditional form of a vertical). The open area just cleared out by 
> loggers crys out for a vertical and should give a good A/B comparison of 
> the performance of these two antennas. They left a huge birch tree in the 
> center of this area and it is about 120ft from the closest tree on my 
> property. The plan is to run one rope support end of the "Y" over the top 
> of this tree and run the other two rope supports to the tops of two trees 
> on my land forming a 120 deg angle  between each rope. The Y itself will 
> be composed of #12 stranded house wire. A counterpoise with a 
> geometrically matching "Y" will be 50ft below this. I will be filling in 
> the "Ys" with smaller gauge wire in order to increase the capacity between 
> them as much as possible consistent with low cost and low weight. The apex 
> of the "Ys" of course will be connected to the vertical element and the 
> loading coil will be hanging in the approx ce
> nter of this. The whole antenna will be floating relative to ground 
> because of the very poor ground conductivity up here. This pretty much 
> described my first vertical on site (5 years ago) except it was an "X" 
> antenna instead of a "Y" and was located in the center of my 200ft wide 
> lot. The performance of this antenna was quite good (Rac in the order of 
> 10 ohms) but I had to remove it soon after its installation to make room 
> for my house. So far I have installed the ropes over the tops of two trees 
> and should be able to complete the third tomorrow. (BTW I'm still doing 
> pretty good with the compound bow - now batting 1000 :)  Luckily the 
> weather has been good for this project.
>
> About your loop: What you did shouldn't have raised the Rac. Must be 
> something very subtle. Are the two lower legs touching anything other than 
> insulators? That's the most sensitive area. Recheck the Xmter on the bench 
> and also check the resonating caps if nothing else looks out of place.
>
> Bill
>
>> From: smokinggun at verizon.net
>> To: lowfer at mailman.qth.net
>> Date: Sat, 3 Dec 2011 04:38:17 +0000
>> Subject: Re: [Lowfer] #18 wire
>>
>> Wow Bill; I want to see what that looks like and how it performs ! Its a
>> horizontal "Y" ? I guess your feeding it where the 3 legs of the "Y" 
>> meet?
>> Do tell!
>>
>>  BTW : My loop is doing ok.I trimmed some trees and moved the feed point
>> from the corner to the center of the loop( shouldnt change performance)
>> .That night I was copied by Andy and Doug down in TN ; almost 500 miles! 
>> Not
>> bad for a new guy ! For some reason though by trimming the trees away and
>> raising the lower leg from 4 ft up to 8 ft  and moving the feedpoint ; my
>> Rac went up ?I was expecting the opposite but what do I know.
>>  Keep us informed on your "Y " experiment .Im real curious.
>>
>>    73
>>        Rick  KA2PBO
>>         "PBO"  187.2Khz  "or so"     qrss60
>>
>>
>>
>>
>> ----- Original Message ----- 
>> From: "Bill Ashlock" <ashlockw at hotmail.com>
>> To: <lowfer at mailman.qth.net>
>> Sent: Saturday, December 03, 2011 4:02 AM
>> Subject: Re: [Lowfer] #18 wire
>>
>>
>> >
>> > Thanks Warren. I'll have to stop in on my next trip south and/or give 
>> > them
>> > a call. This is for the antenna design that uses a tall tree 120ft off 
>> > to
>> > the side of my land. This was originally planned to be an "H" antenna
>> > (rotated 90deg) but I found the capacity between top and bottom 
>> > sections
>> > to be only about 100pf and not much more with caged conductors. A "Y"
>> > design (looking down from the top) on the other hand has a capacity of
>> > almost 400pf if the "Y" is filled-in with a spider web of smaller ga 
>> > wire.
>> > I can use two trees on my land to form the "Y". (This is a Lowfer 
>> > antenna,
>> > BTW, fitting inside a 50' x 50' cylinder)
>> >
>> > Bill
>> >
>> >> From: k2ors at verizon.net
>> >> To: lowfer at mailman.qth.net
>> >> Date: Fri, 2 Dec 2011 22:30:33 -0500
>> >> Subject: Re: [Lowfer] #18 wire
>> >>
>> >> Bill,
>> >>    Electronic Surplus Sales in Candia, NH has wire on spools at scrap
>> >> prices. Selection varies from day to day, so it might pay to check 
>> >> with
>> >> them
>> >> first.
>> >>
>> >> 73 Warren
>> >>
>> >> ----- Original Message ----- 
>> >> From: "Bill Ashlock" <ashlockw at hotmail.com>
>> >> To: <lowfer at mailman.qth.net>
>> >> Sent: Friday, December 02, 2011 10:06 PM
>> >> Subject: [Lowfer] #18 wire
>> >>
>> >>
>> >> >
>> >> > Does anyone know of a cheep source for #18 bare stranded wire? Need
>> >> > about
>> >> > 500ft for a new Lowfer antenna design.
>> >> >
>> >> > Used to buy so-called 'chandelier wire' at $12 for a 500ft spool at
>> >> > Home
>> >> > Depot but now I'm seeing astronomical prices.
>> >> >
>> >> > Bill
>> >> >
>> >> > ______________________________________________________________
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