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#1
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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? |
#2
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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 |
#3
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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 |
#4
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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. |
#5
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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 |
#6
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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 |
#7
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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. |
#8
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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! |
#9
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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 |
#10
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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. |
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