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#1
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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! |
#2
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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 |
#3
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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 |
#4
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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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