Backyard antenna considered...
 

I have a wood fence around my back yard. Across the back stretch is 79 feet.
The fence extends 76 feet from there along each side of my house which is 50
feet wide, leaving around 14 feet on each side of the house. The back of the
house to the fence is 37 feet . The eve of my two story house is, if I
remember right, about 23 feet above the ground. I want to erect a random
wire antenna of insulated 12 gauge wire from one corner of the fence in the
back, lead it up to the middle of the house to an insulator, then back down
to the other corner of the fence, where the feedpoint will connect at the
end. The back of my house faces due North. The antenna will be held about 8'
feet off the ground at the fence corners by schedule 40 PVC pipe. I want to
juse the feeline system as described by John Doty in this article:
http://www.hard-core-dx.com/nordicdx...eed/feed1.html
I have a Radio Shack DX-398 equivalent of the Sangean ATS-909. I was
thinking the two ground rods will be set in a hole 1 foot in diameter
filled with a Bentonite slurry. I was wondering if the random wire folded
into such an inverted V facing due North will have good reception qualities.
The previous residence I erected an inverted L random wire antenna and
received excellent results, but seemed very directional. I am hoping the
inverted V shape will help diversify the direction of reception somewhat at
this house. What do you all think?

Backyard antenna considered...
 

"John Smith" wrote in message
...
I have a wood fence around my back yard. Across the back stretch is 79
feet. The fence extends 76 feet from there along each side of my house
which is 50 feet wide, leaving around 14 feet on each side of the house.
The back of the house to the fence is 37 feet . The eve of my two story
house is, if I remember right, about 23 feet above the ground. I want to
erect a random wire antenna of insulated 12 gauge wire from one corner of
the fence in the back, lead it up to the middle of the house to an
insulator, then back down to the other corner of the fence, where the
feedpoint will connect at the end. The back of my house faces due North.
The antenna will be held about 8' feet off the ground at the fence corners
by schedule 40 PVC pipe. I want to juse the feeline system as described by
John Doty in this article:
http://www.hard-core-dx.com/nordicdx...eed/feed1.html
I have a Radio Shack DX-398 equivalent of the Sangean ATS-909. I was
thinking the two ground rods will be set in a hole 1 foot in diameter
filled with a Bentonite slurry. I was wondering if the random wire folded
into such an inverted V facing due North will have good reception
qualities. The previous residence I erected an inverted L random wire
antenna and received excellent results, but seemed very directional. I am
hoping the inverted V shape will help diversify the direction of reception
somewhat at this house. What do you all think?

This might be fun for you.
http://www.k7mem.150m.com/Electronic...erted_vee.html
or
http://www.smeter.net/antennas/inverted-v.php

If you want to think more and work harder look at a multiband antenna.
http://www.qsl.net/ta1dx/amator/prac...le_antenna.htm
about 3/4 down the page.
Mike

Backyard antenna considered...
 

Thank you for the links Mike. I won't be transmitting from the antenna,
just receiving for SWL. I am trying to get something that works wideband and
maybe the multiband dipole is the way to go. I will have to look at the
spreadsheet I have for the bands the DX-398 recieves on and see if I can
design one of those. I don't think the wife will say anything beyond an
intial question of "What the heck is that?" I do not have an HOA (Home
Owners Association) with the associated CCR's (Codes, Covenants &
Regulations). If I make it unobtrusive I don't think the neighbors will give
a hoot, either.

I have kept an annonymous email address due to SPAM scans of Newsgroups. I
can be reached at dwmitchell61ATcharterDOTnet

Dave Mitchell

"amdx" wrote in message
...

"John Smith" wrote in message
...
I have a wood fence around my back yard. Across the back stretch is 79
feet. The fence extends 76 feet from there along each side of my house
which is 50 feet wide, leaving around 14 feet on each side of the house.
The back of the house to the fence is 37 feet . The eve of my two story
house is, if I remember right, about 23 feet above the ground. I want to
erect a random wire antenna of insulated 12 gauge wire from one corner of
the fence in the back, lead it up to the middle of the house to an
insulator, then back down to the other corner of the fence, where the
feedpoint will connect at the end. The back of my house faces due North.
The antenna will be held about 8' feet off the ground at the fence corners
by schedule 40 PVC pipe. I want to juse the feeline system as described by
John Doty in this article:
http://www.hard-core-dx.com/nordicdx...eed/feed1.html
I have a Radio Shack DX-398 equivalent of the Sangean ATS-909. I was
thinking the two ground rods will be set in a hole 1 foot in diameter
filled with a Bentonite slurry. I was wondering if the random wire folded
into such an inverted V facing due North will have good reception
qualities. The previous residence I erected an inverted L random wire
antenna and received excellent results, but seemed very directional. I am
hoping the inverted V shape will help diversify the direction of
reception somewhat at this house. What do you all think?

This might be fun for you.
http://www.k7mem.150m.com/Electronic...erted_vee.html
or
http://www.smeter.net/antennas/inverted-v.php

If you want to think more and work harder look at a multiband antenna.
http://www.qsl.net/ta1dx/amator/prac...le_antenna.htm
about 3/4 down the page.
Mike

Backyard antenna considered...
 

On 5/22/10 12:03 , John Smith wrote:
I have a wood fence around my back yard. Across the back stretch is 79 feet.
The fence extends 76 feet from there along each side of my house which is 50
feet wide, leaving around 14 feet on each side of the house. The back of the
house to the fence is 37 feet . The eve of my two story house is, if I
remember right, about 23 feet above the ground. I want to erect a random
wire antenna of insulated 12 gauge wire from one corner of the fence in the
back, lead it up to the middle of the house to an insulator, then back down
to the other corner of the fence, where the feedpoint will connect at the
end. The back of my house faces due North. The antenna will be held about 8'
feet off the ground at the fence corners by schedule 40 PVC pipe. I want to
juse the feeline system as described by John Doty in this article:
http://www.hard-core-dx.com/nordicdx...eed/feed1.html
I have a Radio Shack DX-398 equivalent of the Sangean ATS-909. I was
thinking the two ground rods will be set in a hole 1 foot in diameter
filled with a Bentonite slurry. I was wondering if the random wire folded
into such an inverted V facing due North will have good reception qualities.
The previous residence I erected an inverted L random wire antenna and
received excellent results, but seemed very directional. I am hoping the
inverted V shape will help diversify the direction of reception somewhat at
this house. What do you all think?



And interesting experiment, to be sure. But WAAAAAAYYYYY too much
antenna for your receivers. You may have to pad it considerably to
prevent overload on these radios.

That said, it wouldn't be the first time a hobbyist built an antenna
and had to find a receiver to fit it.

By all means, give it a shot. And if you're overloading, which is
likely, either pad, reduce coupling, or start looking for a receiver
that can handle such an antenna.

It will be like stepping out of a modified 57 BelAir with a Corvette
drive train into a Vector W8.

Backyard antenna considered...
 

On May 22, 10:03*am, "John Smith" wrote:
I have a wood fence around my back yard. Across the back stretch is 79 feet.
The fence extends 76 feet from there along each side of my house which is 50
feet wide, leaving around 14 feet on each side of the house. The back of the
house to the fence is 37 feet . The eve of my two story house is, if I
remember right, about 23 feet above the ground. I want to erect a random
wire antenna of insulated 12 gauge wire from one corner of the fence in the
back, lead it up to the middle of the house to an insulator, then back down
to the other corner of the fence, where the feedpoint will connect at the
end. The back of my house faces due North. The antenna will be held about 8'
feet off the ground at the fence corners by schedule 40 PVC pipe. I want to
juse the feeline system as described by John Doty in this article:http://www.hard-core-dx.com/nordicdx...eed/feed1.html
I have a Radio Shack DX-398 equivalent of the Sangean ATS-909. I was
thinking the two ground rods will be set in *a hole 1 foot in diameter
filled with a Bentonite slurry. I was wondering if the random wire folded
into such an inverted V facing due North will have good reception qualities.
The previous residence I erected an inverted L random wire antenna and
received excellent results, but seemed very directional. I am hoping the
inverted V shape will help diversify the direction of reception somewhat at
this house. What do you all think?

John Smith,

Consider using the Par Electronics End-Fed
Shortwave Listener's (EF-SWL) Antenna
http://groups.google.com/group/rec.r...68cb105b4a370b
http://groups.google.com/group/rec.r...11c0ac4f084b87

Backyard antenna considered...
 

On May 22, 4:44*pm, "John Smith" wrote:
Thank you *for the links Mike. I won't be transmitting from the antenna,
just receiving for SWL. I am trying to get something that works wideband and
maybe the multiband dipole is the way to go. I will have to look at the
spreadsheet I have for the bands the DX-398 recieves on and see if I can
design one of those. I don't think the wife will say anything beyond an
intial question of "What the heck is that?" I do not have an HOA (Home
Owners Association) with the associated CCR's (Codes, Covenants &
Regulations). If I make it unobtrusive I don't think the neighbors will give
a hoot, either.

I have kept an annonymous email address due to SPAM scans of Newsgroups. I
can be reached at *dwmitchell61ATcharterDOTnet

Dave Mitchell

"amdx" wrote in message

...



"John Smith" wrote in message
...
I have a wood fence around my back yard. Across the back stretch is 79
feet. The fence extends 76 feet from there along each side of my house
which is 50 feet wide, leaving around 14 feet on each side of the house..
The back of the house to the fence is 37 feet . The eve of my two story
house is, if I remember right, about 23 feet above the ground. I want to
erect a random wire antenna of insulated 12 gauge wire from one corner of
the fence in the back, lead it up to the middle of the house to an
insulator, then back down to the other corner of the fence, where the
feedpoint will connect at the end. The back of my house faces due North..
The antenna will be held about 8' feet off the ground at the fence corners
by schedule 40 PVC pipe. I want to juse the feeline system as described by
John Doty in this article:
http://www.hard-core-dx.com/nordicdx...eed/feed1.html
I have a Radio Shack DX-398 equivalent of the Sangean ATS-909. I was
thinking the two ground rods will be set in *a hole 1 foot in diameter
filled with a Bentonite slurry. I was wondering if the random wire folded
into such an inverted V facing due North will have good reception
qualities. The previous residence I erected an inverted L random wire
antenna and received excellent results, but seemed very directional. I am
hoping the inverted V shape will help diversify the direction of
reception somewhat at this house. What do you all think?

This might be fun for you.
http://www.k7mem.150m.com/Electronic...erted_vee.html
or
http://www.smeter.net/antennas/inverted-v.php

If you want to think more and work harder look at a multiband antenna.
http://www.qsl.net/ta1dx/amator/prac...le_antenna.htm
about 3/4 down the page.
* *Mike

One more time for John Smith,

So your 'portable' AM/FM Shortwave Radio Needs
an External Antenna for Better Reception . . .
http://groups.google.com/group/rec.r...a610e444b71ebd

-then- Consider the Portable Wire Antenna (PWA)
http://groups.google.com/group/rec.r...4fd1bafbc1ccf5

"Portable Wire Antenna" (PWA) that was created
and written about by Tom Sevart [N2UHC]
http://groups.google.com/group/rec.r...c232b1c5d205ea

Plug for a Portable SW Radio Antenna Jack
http://groups.google.com/group/rec.r...002d640926365a

hope this helps - iane ~ RHF

Backyard antenna considered...
 

RHF wrote:
On May 22, 10:03 am, "John wrote:
I have a wood fence around my back yard. Across the back stretch is 79 feet.
The fence extends 76 feet from there along each side of my house which is 50
feet wide, leaving around 14 feet on each side of the house. The back of the
house to the fence is 37 feet . The eve of my two story house is, if I
remember right, about 23 feet above the ground. I want to erect a random
wire antenna of insulated 12 gauge wire from one corner of the fence in the
back, lead it up to the middle of the house to an insulator, then back down
to the other corner of the fence, where the feedpoint will connect at the
end. The back of my house faces due North. The antenna will be held about 8'
feet off the ground at the fence corners by schedule 40 PVC pipe. I want to
juse the feeline system as described by John Doty in this article:http://www.hard-core-dx.com/nordicdx...eed/feed1.html
I have a Radio Shack DX-398 equivalent of the Sangean ATS-909. I was
thinking the two ground rods will be set in a hole 1 foot in diameter
filled with a Bentonite slurry. I was wondering if the random wire folded
into such an inverted V facing due North will have good reception qualities.
The previous residence I erected an inverted L random wire antenna and
received excellent results, but seemed very directional. I am hoping the
inverted V shape will help diversify the direction of reception somewhat at
this house. What do you all think?

John Smith,

Consider using the Par Electronics End-Fed
Shortwave Listener's (EF-SWL) Antenna
http://groups.google.com/group/rec.r...68cb105b4a370b
http://groups.google.com/group/rec.r...11c0ac4f084b87
.
Rig EF-SWL as an Inverted "L" Antenna starting
with a 15 Foot Vertical Up-Leg with a 30 Foot
Horizontal Out-Arm
http://groups.google.com/group/rec.r...f41e85486b0ed9
.
SWL -Newbies- Installing an Inverted "L" Antenna : The Right-Way !
http://groups.google.com/group/rec.r...ca62e0c0e838ea
.
All-Band Sloping Inverted "L" Antenna -by- Rolf Brevig [LA1IC]
http://groups.google.com/group/rec.r...0de363c21d19ba
.
hope this helps - iane ~ RHF
.

Center feed it at the apex with RG6. Good to go. Great antenna.

Backyard antenna considered...
 

On May 23, 4:33*pm, dave wrote:
RHF wrote:
On May 22, 10:03 am, "John *wrote:
I have a wood fence around my back yard. Across the back stretch is 79 feet.
The fence extends 76 feet from there along each side of my house which is 50
feet wide, leaving around 14 feet on each side of the house. The back of the
house to the fence is 37 feet . The eve of my two story house is, if I
remember right, about 23 feet above the ground. I want to erect a random
wire antenna of insulated 12 gauge wire from one corner of the fence in the
back, lead it up to the middle of the house to an insulator, then back down
to the other corner of the fence, where the feedpoint will connect at the
end. The back of my house faces due North. The antenna will be held about 8'
feet off the ground at the fence corners by schedule 40 PVC pipe. I want to
juse the feeline system as described by John Doty in this article:http://www.hard-core-dx.com/nordicdx...eed/feed1.html
I have a Radio Shack DX-398 equivalent of the Sangean ATS-909. I was
thinking the two ground rods will be set in *a hole 1 foot in diameter
filled with a Bentonite slurry. I was wondering if the random wire folded
into such an inverted V facing due North will have good reception qualities.
The previous residence I erected an inverted L random wire antenna and
received excellent results, but seemed very directional. I am hoping the
inverted V shape will help diversify the direction of reception somewhat at
this house. What do you all think?

John Smith,

Consider using the Par Electronics End-Fed
Shortwave Listener's (EF-SWL) Antenna
http://groups.google.com/group/rec.r...68cb105b4a370b
http://groups.google.com/group/rec.r...11c0ac4f084b87
* .
Rig EF-SWL as an Inverted "L" Antenna starting
with a 15 Foot Vertical Up-Leg with a 30 Foot
Horizontal Out-Arm
http://groups.google.com/group/rec.r...f41e85486b0ed9
* .
SWL -Newbies- Installing an Inverted "L" Antenna : The Right-Way !
http://groups.google.com/group/rec.r...ca62e0c0e838ea
* .
All-Band Sloping Inverted "L" Antenna -by- Rolf Brevig [LA1IC]
http://groups.google.com/group/rec.r...0de363c21d19ba
* .
hope this helps - iane ~ RHF
* .

Center feed it at the apex with RG6. *Good to go. *Great antenna.

How do you center feed an inverted L or a PAR SWL? This I gotta see!

Backyard antenna considered...
 

On Sun, 23 May 2010 16:58:44 -0700 (PDT), bpnjensen
wrote:

On May 23, 4:33*pm, dave wrote:
RHF wrote:
On May 22, 10:03 am, "John *wrote:
I have a wood fence around my back yard. Across the back stretch is 79 feet.
The fence extends 76 feet from there along each side of my house which is 50
feet wide, leaving around 14 feet on each side of the house. The back of the
house to the fence is 37 feet . The eve of my two story house is, if I
remember right, about 23 feet above the ground. I want to erect a random
wire antenna of insulated 12 gauge wire from one corner of the fence in the
back, lead it up to the middle of the house to an insulator, then back down
to the other corner of the fence, where the feedpoint will connect at the
end. The back of my house faces due North. The antenna will be held about 8'
feet off the ground at the fence corners by schedule 40 PVC pipe. I want to
juse the feeline system as described by John Doty in this article:http://www.hard-core-dx.com/nordicdx...eed/feed1.html
I have a Radio Shack DX-398 equivalent of the Sangean ATS-909. I was
thinking the two ground rods will be set in *a hole 1 foot in diameter
filled with a Bentonite slurry. I was wondering if the random wire folded
into such an inverted V facing due North will have good reception qualities.
The previous residence I erected an inverted L random wire antenna and
received excellent results, but seemed very directional. I am hoping the
inverted V shape will help diversify the direction of reception somewhat at
this house. What do you all think?

John Smith,

Consider using the Par Electronics End-Fed
Shortwave Listener's (EF-SWL) Antenna
http://groups.google.com/group/rec.r...68cb105b4a370b
http://groups.google.com/group/rec.r...11c0ac4f084b87
* .
Rig EF-SWL as an Inverted "L" Antenna starting
with a 15 Foot Vertical Up-Leg with a 30 Foot
Horizontal Out-Arm
http://groups.google.com/group/rec.r...f41e85486b0ed9
* .
SWL -Newbies- Installing an Inverted "L" Antenna : The Right-Way !
http://groups.google.com/group/rec.r...ca62e0c0e838ea
* .
All-Band Sloping Inverted "L" Antenna -by- Rolf Brevig [LA1IC]
http://groups.google.com/group/rec.r...0de363c21d19ba
* .
hope this helps - iane ~ RHF
* .

Center feed it at the apex with RG6. *Good to go. *Great antenna.

How do you center feed an inverted L or a PAR SWL? This I gotta see!

He is talking about the original V shaped antenna that John described.
He is saying - split it in half and feed it at the top insulator with
coax instead of feeding it at the end with a balun.

Jim

Backyard antenna considered...
 

bpnjensen wrote:
On May 23, 4:33 pm, wrote:
RHF wrote:
On May 22, 10:03 am, "John wrote:
I have a wood fence around my back yard. Across the back stretch is 79 feet.
The fence extends 76 feet from there along each side of my house which is 50
feet wide, leaving around 14 feet on each side of the house. The back of the
house to the fence is 37 feet . The eve of my two story house is, if I
remember right, about 23 feet above the ground. I want to erect a random
wire antenna of insulated 12 gauge wire from one corner of the fence in the
back, lead it up to the middle of the house to an insulator, then back down
to the other corner of the fence, where the feedpoint will connect at the
end. The back of my house faces due North. The antenna will be held about 8'
feet off the ground at the fence corners by schedule 40 PVC pipe. I want to
juse the feeline system as described by John Doty in this article:http://www.hard-core-dx.com/nordicdx...eed/feed1.html
I have a Radio Shack DX-398 equivalent of the Sangean ATS-909. I was
thinking the two ground rods will be set in a hole 1 foot in diameter
filled with a Bentonite slurry. I was wondering if the random wire folded
into such an inverted V facing due North will have good reception qualities.
The previous residence I erected an inverted L random wire antenna and
received excellent results, but seemed very directional. I am hoping the
inverted V shape will help diversify the direction of reception somewhat at
this house. What do you all think?

John Smith,

Consider using the Par Electronics End-Fed
Shortwave Listener's (EF-SWL) Antenna
http://groups.google.com/group/rec.r...68cb105b4a370b
http://groups.google.com/group/rec.r...11c0ac4f084b87
.
Rig EF-SWL as an Inverted "L" Antenna starting
with a 15 Foot Vertical Up-Leg with a 30 Foot
Horizontal Out-Arm
http://groups.google.com/group/rec.r...f41e85486b0ed9
.
SWL -Newbies- Installing an Inverted "L" Antenna : The Right-Way !
http://groups.google.com/group/rec.r...ca62e0c0e838ea
.
All-Band Sloping Inverted "L" Antenna -by- Rolf Brevig [LA1IC]
http://groups.google.com/group/rec.r...0de363c21d19ba
.
hope this helps - iane ~ RHF
.

Center feed it at the apex with RG6. Good to go. Great antenna.

How do you center feed an inverted L or a PAR SWL? This I gotta see!

Ignore the Roy Fisk noise. The original poster says he has a V shaped
antenna that he was thinking about end feeding, thus making it more of
an L. I suggest breaking it in the middle.

Backyard antenna considered...
 

On May 23, 5:15*pm, wrote:
On Sun, 23 May 2010 16:58:44 -0700 (PDT), bpnjensen





wrote:
On May 23, 4:33*pm, dave wrote:
RHF wrote:
On May 22, 10:03 am, "John *wrote:
I have a wood fence around my back yard. Across the back stretch is 79 feet.
The fence extends 76 feet from there along each side of my house which is 50
feet wide, leaving around 14 feet on each side of the house. The back of the
house to the fence is 37 feet . The eve of my two story house is, if I
remember right, about 23 feet above the ground. I want to erect a random
wire antenna of insulated 12 gauge wire from one corner of the fence in the
back, lead it up to the middle of the house to an insulator, then back down
to the other corner of the fence, where the feedpoint will connect at the
end. The back of my house faces due North. The antenna will be held about 8'
feet off the ground at the fence corners by schedule 40 PVC pipe. I want to
juse the feeline system as described by John Doty in this article:http://www.hard-core-dx.com/nordicdx...eed/feed1.html
I have a Radio Shack DX-398 equivalent of the Sangean ATS-909. I was
thinking the two ground rods will be set in *a hole 1 foot in diameter
filled with a Bentonite slurry. I was wondering if the random wire folded
into such an inverted V facing due North will have good reception qualities.
The previous residence I erected an inverted L random wire antenna and
received excellent results, but seemed very directional. I am hoping the
inverted V shape will help diversify the direction of reception somewhat at
this house. What do you all think?

John Smith,

Consider using the Par Electronics End-Fed
Shortwave Listener's (EF-SWL) Antenna
http://groups.google.com/group/rec.r...68cb105b4a370b
http://groups.google.com/group/rec.r...11c0ac4f084b87
* .
Rig EF-SWL as an Inverted "L" Antenna starting
with a 15 Foot Vertical Up-Leg with a 30 Foot
Horizontal Out-Arm
http://groups.google.com/group/rec.r...f41e85486b0ed9
* .
SWL -Newbies- Installing an Inverted "L" Antenna : The Right-Way !
http://groups.google.com/group/rec.r...ca62e0c0e838ea
* .
All-Band Sloping Inverted "L" Antenna -by- Rolf Brevig [LA1IC]
http://groups.google.com/group/rec.r...0de363c21d19ba
* .
hope this helps - iane ~ RHF
* .

Center feed it at the apex with RG6. *Good to go. *Great antenna.

How do you center feed an inverted L or a PAR SWL? *This I gotta see!

He is talking about the original V shaped antenna that John described.
He is saying - split it in half and feed it at the top insulator with
coax instead of feeding it at the end with a balun.

Jim- Hide quoted text -

- Show quoted text -

I see - and the advantage is less directionality, like a dipole.

But if that is what you seek, then why not just end-feed the PAR and
set it up as a sloper with the fed end near the gournd and the far end
up high? That's what Dale recommends, and you still get more omni out
of it plys good noise isolation. No surgery required.

Either that or take some plain wire and do the split version. If I
got the PAR, I'd be hesitant to take a nice, slighlty pricey antenna
and chop-shop it.

Bruce

Backyard antenna considered...
 

John Smith wrote:
I have a wood fence around my back yard. Across the back stretch is 79 feet.
The fence extends 76 feet from there along each side of my house which is 50
feet wide, leaving around 14 feet on each side of the house. The back of the
house to the fence is 37 feet . The eve of my two story house is, if I
remember right, about 23 feet above the ground. I want to erect a random
wire antenna of insulated 12 gauge wire from one corner of the fence in the
back, lead it up to the middle of the house to an insulator, then back down
to the other corner of the fence, where the feedpoint will connect at the
end. The back of my house faces due North. The antenna will be held about 8'
feet off the ground at the fence corners by schedule 40 PVC pipe. I want to
juse the feeline system as described by John Doty in this article:
http://www.hard-core-dx.com/nordicdx...eed/feed1.html
I have a Radio Shack DX-398 equivalent of the Sangean ATS-909. I was
thinking the two ground rods will be set in a hole 1 foot in diameter
filled with a Bentonite slurry. I was wondering if the random wire folded
into such an inverted V facing due North will have good reception qualities.
The previous residence I erected an inverted L random wire antenna and
received excellent results, but seemed very directional. I am hoping the
inverted V shape will help diversify the direction of reception somewhat at
this house. What do you all think?



I have a 65' random wire located about 225 feet from my house with a 9:1
matching transformer at the antenna end, and roughly 300 feet of coax
running underground (in plastic conduit) between the antenna and the
house and then up and over across my attic before coming down the wall
where my radio is. There's a ground at the matching transformer, and
one at the house. I've got ferrites at each end too.

It's a wonderful antenna. My noise floor is incredibly low.

A concern I have with the antenna you're proposing is you're bringing
the antenna back to the house - where all the electrical noise you're
looking to avoid is located.

Your radio really doesn't need a big antenna. Design yours so you keep
the antenna as far from your house (and your neighbors homes) as
possible. 15-20 feet is probably plenty for that radio.

RFI strength goes down by a square of the distance. Put your antenna
twice as far away and you get 1/4 of the noise signal. Three times as
far away and you get 1/9 of the noise signal.

Something to consider is if you're even thinking about getting your ham
ticket some day, it's worth spending the money up front to use low loss
coax or heliax. My antenna is useless for tx, and digging up all that
pipe to replace my coax just isn't an attractive option.

Backyard antenna considered...
 

On May 24, 8:00*am, "Mark S. Holden" wrote:
John Smith wrote:
I have a wood fence around my back yard. Across the back stretch is 79 feet.
The fence extends 76 feet from there along each side of my house which is 50
feet wide, leaving around 14 feet on each side of the house. The back of the
house to the fence is 37 feet . The eve of my two story house is, if I
remember right, about 23 feet above the ground. I want to erect a random
wire antenna of insulated 12 gauge wire from one corner of the fence in the
back, lead it up to the middle of the house to an insulator, then back down
to the other corner of the fence, where the feedpoint will connect at the
end. The back of my house faces due North. The antenna will be held about 8'
feet off the ground at the fence corners by schedule 40 PVC pipe. I want to
juse the feeline system as described by John Doty in this article:
http://www.hard-core-dx.com/nordicdx...eed/feed1.html
I have a Radio Shack DX-398 equivalent of the Sangean ATS-909. I was
thinking the two ground rods will be set in *a hole 1 foot in diameter
filled with a Bentonite slurry. I was wondering if the random wire folded
into such an inverted V facing due North will have good reception qualities.
The previous residence I erected an inverted L random wire antenna and
received excellent results, but seemed very directional. I am hoping the
inverted V shape will help diversify the direction of reception somewhat at
this house. What do you all think?

I have a 65' random wire located about 225 feet from my house with a 9:1
matching transformer at the antenna end, and roughly 300 feet of coax
running underground (in plastic conduit) between the antenna and the
house and then up and over across my attic before coming down the wall
where my radio is. *There's a ground at the matching transformer, and
one at the house. *I've got ferrites at each end too.

It's a wonderful antenna. *My noise floor is incredibly low.

A concern I have with the antenna you're proposing is you're bringing
the antenna back to the house - where all the electrical noise you're
looking to avoid is located.

Your radio really doesn't need a big antenna. *Design yours so you keep
the antenna as far from your house (and your neighbors homes) as
possible. *15-20 feet is probably plenty for that radio.

RFI strength goes down by a square of the distance. *Put your antenna
twice as far away and you get 1/4 of the noise signal. *Three times as
far away and you get 1/9 of the noise signal.

Something to consider is if you're even thinking about getting your ham
ticket some day, it's worth spending the money up front to use low loss
coax or heliax. *My antenna is useless for tx, and digging up all that
pipe to replace my coax just isn't an attractive option.- Hide quoted text -

- Show quoted text -

Dang! I'd give my right arm for that much space to erect an antenna.

Backyard antenna considered...
 

bpnjensen wrote:
On May 24, 8:00 am, "Mark S. Holden" wrote:

I have a 65' random wire located about 225 feet from my house with a 9:1
matching transformer at the antenna end, and roughly 300 feet of coax
running underground (in plastic conduit) between the antenna and the
house and then up and over across my attic before coming down the wall
where my radio is. There's a ground at the matching transformer, and
one at the house. I've got ferrites at each end too.

It's a wonderful antenna. My noise floor is incredibly low.

A concern I have with the antenna you're proposing is you're bringing
the antenna back to the house - where all the electrical noise you're
looking to avoid is located.

Your radio really doesn't need a big antenna. Design yours so you keep
the antenna as far from your house (and your neighbors homes) as
possible. 15-20 feet is probably plenty for that radio.

RFI strength goes down by a square of the distance. Put your antenna
twice as far away and you get 1/4 of the noise signal. Three times as
far away and you get 1/9 of the noise signal.

Something to consider is if you're even thinking about getting your ham
ticket some day, it's worth spending the money up front to use low loss
coax or heliax. My antenna is useless for tx, and digging up all that
pipe to replace my coax just isn't an attractive option.- Hide quoted text -

- Show quoted text -

Dang! I'd give my right arm for that much space to erect an antenna.

It doesn't suck.

Before I had this one, my signal to noise level was a problem, even when
I did the horizontal loop.

But I really wish I'd used heliax.