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#1
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Friend of mine bought an old farmhouse in the country. A tenant 30
years ago worked for telco, and used to throw things away in the woods behind the house. I now have approximately 700 feet of black outdoor telco line. It looks like zipcord or 2-conductor appliance wire. It has a *very* tough jacket; the copper hasn't oxidized *at all*. The longest contiguous piece is 240', the second is 140'. 2 more are about 100' each. 3 more smaller pieces. I just finished untangling it. I live in the 'burbs. Nine 100' Loblollies; Six 80' hardwoods. Back property edge ends in a stream, eight feet down in a gully. Wind recently brought down my horizontal loop and my TTFD, so in effect, I'm (mentally) starting over. What would you do? Unzip and solder the phone line for a 1000' Beverage fastened with zip-ties to the shrubbery above the stream? (I doubt any neighbors would even notice the wire.) Are there any good antenna designs that take advantage of zipcord? -j PS: I'm going to repair my TTFD and hang it along the stream bank. That should provide a good ground plane, neh? |
#2
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JoanD'arcRoast wrote:
Friend of mine bought an old farmhouse in the country. A tenant 30 years ago worked for telco, and used to throw things away in the woods behind the house. I now have approximately 700 feet of black outdoor telco line. It looks like zipcord or 2-conductor appliance wire. It has a *very* tough jacket; the copper hasn't oxidized *at all*. This is known as "drop wire" and is typically used as the "drop" from the aerial terminal box to the residence. I live in the 'burbs. Nine 100' Loblollies; Six 80' hardwoods. Back property edge ends in a stream, eight feet down in a gully. Wind recently brought down my horizontal loop and my TTFD, so in effect, I'm (mentally) starting over. What would you do? Unzip and solder the phone line for a 1000' Beverage fastened with zip-ties to the shrubbery above the stream? (I doubt any neighbors would even notice the wire.) A Beverage is *highly* directive. Do you need reception from the specific direction the lay of the land will allow you? Also, although a Beverage will work into the HF range, it is typically used for LF and MF, up to about 2 MHz. Do you listen to those frequencies and in that particular direction? If you answer "no", you may be better off selling it for the scrap copper value, which thanks to our Chinese friends, is quite high now. |
#3
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On Dec 21, 5:02 pm, Billy Burpelson wrote:
JoanD'arcRoast wrote: Friend of mine bought an old farmhouse in the country. A tenant 30 years ago worked for telco, and used to throw things away in the woods behind the house. I now have approximately 700 feet of black outdoor telco line. It looks like zipcord or 2-conductor appliance wire. It has a *very* tough jacket; the copper hasn't oxidized *at all*. This is known as "drop wire" and is typically used as the "drop" from the aerial terminal box to the residence. I live in the 'burbs. Nine 100' Loblollies; Six 80' hardwoods. Back property edge ends in a stream, eight feet down in a gully. Wind recently brought down my horizontal loop and my TTFD, so in effect, I'm (mentally) starting over. What would you do? Unzip and solder the phone line for a 1000' Beverage fastened with zip-ties to the shrubbery above the stream? (I doubt any neighbors would even notice the wire.) A Beverage is *highly* directive. Do you need reception from the specific direction the lay of the land will allow you? Also, although a Beverage will work into the HF range, it is typically used for LF and MF, up to about 2 MHz. Do you listen to those frequencies and in that particular direction? If you answer "no", you may be better off selling it for the scrap copper value, which thanks to our Chinese friends, is quite high now. You might also have TWO antennas; one North - South One East - West and a switch to go between the two. |
#4
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On Dec 21, 11:51*am, JoanD'arcRoast wrote:
Friend of mine bought an old farmhouse in the country. A tenant 30 years ago worked for telco, and used to throw things away in the woods behind the house. I now have approximately 700 feet of black outdoor telco line. It looks like zipcord or 2-conductor appliance wire. It has a *very* tough jacket; the copper hasn't oxidized *at all*. The longest contiguous piece is 240', the second is 140'. 2 more are about 100' each. 3 more smaller pieces. I just finished untangling it. IIRC This is a Twin Pair of Copper 'Clad' Steel Wire used as the Drop-Line from the Telephone Pole to the House's Telephone Service Entrance. I live in the 'burbs. Nine 100' Loblollies; Six 80' hardwoods. Back property edge ends in a stream, eight feet down in a gully. Wind recently brought down my horizontal loop and my TTFD, so in effect, I'm (mentally) starting over. What would you do? Unzip and solder the phone line for a 1000' Beverage fastened with zip-ties to the shrubbery above the stream? (I doubt any neighbors would even notice the wire.) Are there any good antenna designs that take advantage of zipcord? -j PS: I'm going to repair my TTFD and hang it along the stream bank. That should provide a good ground plane, neh? |
#5
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![]() On Dec 21, 5:02 pm, Billy Burpelson wrote: JoanD'arcRoast wrote: Friend of mine bought an old farmhouse in the country. A tenant 30 years ago worked for telco, and used to throw things away in the woods behind the house. I now have approximately 700 feet of black outdoor telco line. It looks like zipcord or 2-conductor appliance wire. It has a *very* tough jacket; the copper hasn't oxidized *at all*. This is known as "drop wire" and is typically used as the "drop" from the aerial terminal box to the residence. I live in the 'burbs. Nine 100' Loblollies; Six 80' hardwoods. Back property edge ends in a stream, eight feet down in a gully. Wind recently brought down my horizontal loop and my TTFD, so in effect, I'm (mentally) starting over. What would you do? Unzip and solder the phone line for a 1000' Beverage fastened with zip-ties to the shrubbery above the stream? (I doubt any neighbors would even notice the wire.) Billy Burpelson wrote: A Beverage is *highly* directive. Do you need reception from the specific direction the lay of the land will allow you? Also, although a Beverage will work into the HF range, it is typically used for LF and MF, up to about 2 MHz. Do you listen to those frequencies and in that particular direction? If you answer "no", you may be better off selling it for the scrap copper value, which thanks to our Chinese friends, is quite high now. wrote: You might also have TWO antennas; one North - South One East - West and a switch to go between the two. True...he -might- have TWO antennas, but as stated above, depending on the lay of the land, what his property size is and if he doesn't mind possibly having to put it on his neighbor's property (trespassing?). Also, presuming he listens to LF or MF and has a need for a beverage. Finally, a Beverage is typically good for ONE direction only: north OR south, east OR west, not both. There IS a "two-wire" bi-directional beverage, but not for zip cord; it seems the two conductor Beverage must have a wider spacing (typically 10 inches), obviously much wider spacing than the zip cord has. |
#6
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JoanD'arcRoast wrote:
Friend of mine bought an old farmhouse in the country. A tenant 30 years ago worked for telco, and used to throw things away in the woods behind the house. I now have approximately 700 feet of black outdoor telco line. It looks like zipcord or 2-conductor appliance wire. It has a *very* tough jacket; the copper hasn't oxidized *at all*. The longest contiguous piece is 240', the second is 140'. 2 more are about 100' each. 3 more smaller pieces. I just finished untangling it. I live in the 'burbs. Nine 100' Loblollies; Six 80' hardwoods. Back property edge ends in a stream, eight feet down in a gully. Wind recently brought down my horizontal loop and my TTFD, so in effect, I'm (mentally) starting over. What would you do? Unzip and solder the phone line for a 1000' Beverage fastened with zip-ties to the shrubbery above the stream? (I doubt any neighbors would even notice the wire.) Are there any good antenna designs that take advantage of zipcord? -j PS: I'm going to repair my TTFD and hang it along the stream bank. That should provide a good ground plane, neh? That stuff is almost impossible to "zip" apart. Twist and solder the conductors together at both ends of the 240' piece . Get one end real high up, hook the other end to the radio. It'll kick serious butt. |
#7
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On Dec 21, 11:51*am, JoanD'arcRoast wrote:
Friend of mine bought an old farmhouse in the country. A tenant 30 years ago worked for telco, and used to throw things away in the woods behind the house. I now have approximately 700 feet of black outdoor telco line. It looks like zipcord or 2-conductor appliance wire. It has a *very* tough jacket; the copper hasn't oxidized *at all*. The longest contiguous piece is 240', the second is 140'. 2 more are about 100' each. 3 more smaller pieces. I just finished untangling it. I live in the 'burbs. Nine 100' Loblollies; Six 80' hardwoods. Back property edge ends in a stream, eight feet down in a gully. Wind recently brought down my horizontal loop and my TTFD, so in effect, I'm (mentally) starting over. What would you do? Unzip and solder the phone line for a 1000' Beverage fastened with zip-ties to the shrubbery above the stream? (I doubt any neighbors would even notice the wire.) Are there any good antenna designs that take advantage of zipcord? -j PS: I'm going to repair my TTFD and hang it along the stream bank. That should provide a good ground plane, neh? JDaR, The Type and Size of your Antenna depends on the Size and Shape of your Property; plus the lay-out of the Structures and Natural Antenna Support-Point on it. Size of the Property : [ ] 1/2 Acre or less [ ] One Acre {209 Feet by 209 Feet} [ ] More Than an Acre [ ] Several Acres - Oh Boy ! ![]() Distance from the House to the Creek ? Distance across the Back of the Property. FOR BASIC SHORTWAVE RADIO LISTENING (SWL) -THINK- INVERTED "L" ANTENNA Consider building one or more Inverted "L" Antennas using the "Low Noise Antenna" design concepts that were popularized by John Doty. * SWL Longwire -by- John Doty [ Shortwave Listener (SWL) Longwire Antenna ] http://www.google.com/group/rec.radi...3dd73e36381d46 * Low Noise Antenna Connection -by- John Doty http://www.google.com/group/rec.radi...de8bb62764b23a * Grounding Is Key To Good Reception -by- John Doty http://www.google.com/group/rec.radi...d8fe1179a5c6c8 * The "John Doty" Reading List courtsey of Hard-Core-DX.Com http://www.google.com/group/rec.radi...c9ce8dea3d0b06 IMHO - For most Shortwave Listeners (SWLs) the Inverted "L" Antenna is the most effective for their general needs. FWIW - The Amateur Radio Inverted "L" Antenna is often made-up of two Equal 1/4 WL Sections : One Vertical Leg and One Horizontal Arm and is Band Specific. -While- The Shortwave Radio Listener's (SWL'er) Inverted "L" Antenna is usually made-up of two Un-Equal Sections : A Shorter Vertical Leg with a Longer Horizontal Arm. With a 20 Foot High by 100 Foot Long Inverted "L" Antenna being a fairly nice Antenna for Shortwave Radio Listening (SWL). The Creek* is at the Back** of the Property and assumed to have Wet-Soil all-year-round. This has Two Good Points : * Good Wet-Soil {Ground} for a Good Ground. ** Back of the Property and Far Away from the House. There are Several Tall Trees on the Property to use as Natural Antenna Supports. This has Two Good Points : * Use What's There and No Need to Build * Gets the Antenna Wires High-in-the-Air * Gets the Antenna Wires way above the Head for Safety Grounding - Place a Ground Rod in the Ground at the Back of the Property; near a Tree if possible; and a few Feet before the Edge of the Gully. * Run a Heavy Solid Bare Copper Wire down into the Gully as far as you can go into it without standing in Water. * Place a second Ground Rod here and Connect both Ground Rods together using the Copper Wire. NOTE - If you can pick a Tree to locate the Ground Rod near that is at the Back of the Property and at near one of the Back Corners of the Property - That is better. TIP - Place the Ground Rod about 3~5 Feet Away from the Trunk of the Tree and ideally under a Large Branch that is about 20 Feet or Higher above the ground. Coax Cable - Run/Route a Coax Cable from the House along the Ground; better would be under the Ground a few Inches; out to the Ground Rod that is near the base the Tree. ? What is the Distance between the House and the Ground Rod in Feet ? Matching Transformer {MLB} - Mount a Matching Transformer on the Ground Rod and connect the Coax Cable to the Matching Transformer. The Wire Antenna Element - Use the Twin TelCo Wire 'As Is" for the Wire Antenna Element. Use the Trees to Hang the Wire Antenna Element from. Rig the Wire Antenna Element from the Trees either with Rope or Stand-Off or both. TIP - A 24-Foot Extention Ladder and some Stand-Offs can Safely get your Wire Antenna Element Up-in-the-Air 18~20 Feet. -OR- Rig the Wire Antenna Element from Branch to Branch using a separate Rigging Rope with each Tree. Some will simply lay the Wire Antenna Element on the Ground and Tie the Rigging Rope directly to it; others will use Antenna Insulator along with the Rope. Antenna Rigging Rope - Black Nylon/Poly 3/16"~1/4" seems to be the Rope of choice for Rigging most Shortwave Radio Listening (SWL) Antennas. Advoiding the Noise-Zone - Back to the Distance in Feet between the House and the Ground Rod. Divide this number of Feet by Three (3). The Horizontal part of your new Antenna should only be 2/3RDs of this Distance; and leaving 1/3RD of that Distance; which is the closest to the House as a Noise-Zone Buffer. NOTE - For most Shortwave Radio Listeners (SWLs) a Random Wire Antenna that is about 100 Foot long is 'Good Enough' for their Shortwave Radio Listening Needs. After all 98 Feet is ~ 1/4WL for the 120m Band. -WRT- The Inverted "L" Antenna the 100 Feet can be the Total Length of the Antenna -or- The Horizontal Length of the Top Section can be up to 100 Feet by itself. -However- If you are into AM/MW DXing or Longwave (LW) DXing 'NDB' then 200~500 Feet long Antennas may better 'Fit' your Radio Listening Needs. RIG - The Wire Antenna Element starting at the base of the Tree with the Ground Rod. Straight-up and Parallel from the Tree 3~5 Feet to the first Antenna Support-Point Stand-Off or via Rope. Then to the next Tree and it's Antenna Support-Point and so on until the Last Tree. Rig the End of the Wire Antenna Element with a Counter Weight and Pulley as Stress/Loading Relief for the Wire Antenna Element in Weather and Wind. Out-Side Grounding at the House - Install a Ground Rod outside the House where the Coax Cable comes into the House. Use a Grounding Block/Pass-Through-Connector to Ground the Coax Cable here before it Enters the House. Note - Connect (Bond) this Ground to the House's AC Mains Grounding Point. Connecting the Radio - Run a Coax Cable from the Out-Side Ground into the House and to your Radio/Receiver. THAT SOMETING EXTRA - A Second Wire Antenna Element at 90 Degrees {Perpendicular} from the First Wire Antenna Element. Connected to the same Matching Transformer. * BETTER would be a Second Coax Cable with a Second Ground Rod at the base of the same Tree. The 'Space' between the two Ground Rods would be 3~5 Feet; and both Ground Rod would be connected via a Heavy Solid Bare Copper Wire. Rig the Up-Leg of these two Wire Antenna Elements 3~5 Feet apart and 90 Degrees Away from each other. These two Wire Antenna Elements can be the same Length or different lengths. * ALTERNATIVE would be a Second Wire Antenna Element that is Rigged under the First Wire Antenna Element by 3 Feet that has a Horizontal Length of 62% of the Longer Upper First Wire Antenna Element. Repeating this with a Third Wire Antenna Element that is Rigged under the First Wire Antenna Element by 6 Feet that has a Horizontal Length of 38% of the Longer Upper First Wire Antenna Element is as far as you can go with this scheme. ** First 'Top' Wire Antenna Element 98 Feet (~100%) Horizontal Section would be ~ 1/4WL @ 120m ** Second 'Middle' Wire Antenna Element 59 Feet (~62%) Horizontal Section would be ~ 1/4WL @ 75m ** Third 'Bottom' Wire Antenna Element 38 Feet (~38%) Horizontal Section would be ~ 1/4WL @ 49m hope this helps - iane ~ RHF {pomkia} |
#8
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In article ,
JoanD'arcRoast wrote: Friend of mine bought an old farmhouse in the country. A tenant 30 years ago worked for telco, and used to throw things away in the woods behind the house. I now have approximately 700 feet of black outdoor telco line. It looks like zipcord or 2-conductor appliance wire. It has a *very* tough jacket; the copper hasn't oxidized *at all*. The longest contiguous piece is 240', the second is 140'. 2 more are about 100' each. 3 more smaller pieces. I just finished untangling it. I live in the 'burbs. Nine 100' Loblollies; Six 80' hardwoods. Back property edge ends in a stream, eight feet down in a gully. Wind recently brought down my horizontal loop and my TTFD, so in effect, I'm (mentally) starting over. What would you do? Unzip and solder the phone line for a 1000' Beverage fastened with zip-ties to the shrubbery above the stream? (I doubt any neighbors would even notice the wire.) Are there any good antenna designs that take advantage of zipcord? Snip Amazingly David actually answered your question gave you a good answer. Keep the cable with two wires intact and just short the two wires together at the ends of whatever antenna design you decide to implement. No sense ruining a good protective cover over the wires. The two wires together inside the cable will just look like a bigger single conductor that is more efficient. After you have satisfied your antenna needs you might want to look at selling the remainder of the cable for its copper content. You might have a lot of money sitting there. Lucky to be you. -- Telamon Ventura, California |
#9
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On Dec 21, 4:07*pm, RHF wrote:
On Dec 21, 11:51*am, JoanD'arcRoast wrote: Friend of mine bought an old farmhouse in the country. A tenant 30 years ago worked for telco, and used to throw things away in the woods behind the house. I now have approximately 700 feet of black outdoor telco line. It looks like zipcord or 2-conductor appliance wire. It has a *very* tough jacket; the copper hasn't oxidized *at all*. The longest contiguous piece is 240', the second is 140'. 2 more are about 100' each. 3 more smaller pieces. I just finished untangling it. - IIRC This is a Twin Pair of Copper 'Clad' Steel Wire - used as the Drop-Line from the Telephone Pole to the - House's Telephone Service Entrance. Testing : Copper Clad Steel Wire -v- Solid Copper Wire Strip-off and Inch or two of the Insulation and Test the Inner two Wires with a Magnet. If the Magnet Sticks - It is Copper Clad Steel Wire. If the Magnet Does Not Stick - It is Solid Copper Wire. ~ RHF |
#10
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On Dec 22, 4:43*am, RHF wrote:
On Dec 21, 11:51*am, JoanD'arcRoast wrote: Friend of mine bought an old farmhouse in the country. A tenant 30 years ago worked for telco, and used to throw things away in the woods behind the house. I now have approximately 700 feet of black outdoor telco line. It looks like zipcord or 2-conductor appliance wire. It has a *very* tough jacket; the copper hasn't oxidized *at all*. The longest contiguous piece is 240', the second is 140'. 2 more are about 100' each. 3 more smaller pieces. I just finished untangling it. I live in the 'burbs. Nine 100' Loblollies; Six 80' hardwoods. Back property edge ends in a stream, eight feet down in a gully. Wind recently brought down my horizontal loop and my TTFD, so in effect, I'm (mentally) starting over. What would you do? Unzip and solder the phone line for a 1000' Beverage fastened with zip-ties to the shrubbery above the stream? (I doubt any neighbors would even notice the wire.) Are there any good antenna designs that take advantage of zipcord? -j PS: I'm going to repair my TTFD and hang it along the stream bank. That should provide a good ground plane, neh? JDaR, The Type and Size of your Antenna depends on the Size and Shape of your Property; plus the lay-out of the Structures and Natural Antenna Support-Point on it. Size of the Property : [ ] 1/2 Acre or less [ ] One Acre {209 Feet by 209 Feet} [ ] More Than an Acre [ ] Several Acres - Oh Boy ! ![]() Distance from the House to the Creek ? Distance across the Back of the Property. FOR BASIC SHORTWAVE RADIO LISTENING (SWL) -THINK- INVERTED "L" ANTENNA Consider building one or more Inverted "L" Antennas using the "Low Noise Antenna" design concepts that were popularized by John Doty. * SWL Longwire -by- John Doty [ Shortwave Listener (SWL) Longwire Antenna ]http://www.google.com/group/rec.radio.shortwave/msg/9e3dd73e36381d46 * Low Noise Antenna Connection -by- John Dotyhttp://www.google.com/group/rec.radio.shortwave/msg/1cde8bb62764b23a * Grounding Is Key To Good Reception -by- John Dotyhttp://www.google.com/group/rec.radio.shortwave/msg/5fd8fe1179a5c6c8 * The "John Doty" Reading List courtsey of Hard-Core-DX.Comhttp://www.google.com/group/rec.radio.shortwave/msg/48c9ce8dea3d0b06 IMHO - For most Shortwave Listeners (SWLs) the Inverted "L" Antenna is the most effective for their general needs. FWIW - The Amateur Radio Inverted "L" Antenna is often made-up of two Equal 1/4 WL Sections : One Vertical Leg and One Horizontal Arm and is Band Specific. -While- The Shortwave Radio Listener's (SWL'er) Inverted "L" Antenna is usually made-up of two Un-Equal Sections : A Shorter Vertical Leg with a Longer Horizontal Arm. With a 20 Foot High by 100 Foot Long Inverted "L" Antenna being a fairly nice Antenna for Shortwave Radio Listening (SWL). The Creek* is at the Back** of the Property and assumed to have Wet-Soil all-year-round. This has Two Good Points : * Good Wet-Soil {Ground} for a Good Ground. ** Back of the Property and Far Away from the House. There are Several Tall Trees on the Property to use as Natural Antenna Supports. *This has Two Good Points : * Use What's There and No Need to Build * Gets the Antenna Wires High-in-the-Air * Gets the Antenna Wires way above the Head for Safety Grounding - Place a Ground Rod in the Ground at the Back of the Property; near a Tree if possible; and a few Feet before the Edge of the Gully. * Run a Heavy Solid Bare Copper Wire down into the Gully as far as you can go into it without standing in Water. * Place a second Ground Rod here and Connect both Ground Rods together using the Copper Wire. NOTE - If you can pick a Tree to locate the Ground Rod near that is at the Back of the Property and at near one of the Back Corners of the Property - That is better. TIP - Place the Ground Rod about 3~5 Feet Away from the Trunk of the Tree and ideally under a Large Branch that is about 20 Feet or Higher above the ground. Coax Cable - Run/Route a Coax Cable from the House along the Ground; better would be under the Ground a few Inches; out to the Ground Rod that is near the base the Tree. ? What is the Distance between the House and the Ground Rod in Feet ? Matching Transformer {MLB} - Mount a Matching Transformer on the Ground Rod and connect the Coax Cable to the Matching Transformer. Oops ! ABOUT the Matching Transformer {MT} http://www.hard-core-dx.com/nordicdx...d/magbal1.html This is a 9:1 Matching Transformer which is often called http://www.hard-core-dx.com/nordicdx.../magbalun.html a Magnetic Longwire Balun and is actually an UnUn. http://www.hard-core-dx.com/nordicdx...d/magbal1.html *New* Low Cost 9:1 Antenna Matching Transformers - KD9SV http://www.radiobooks.com/products/svamtb.htm New designed 9-1 Matching Transformer uses Stainless Steel Hardware, F-Connectors and Isolated Ground Connections. The KD9SV Model SV-ATMS is Ideal for Shortwave Radio Listeners (SWLs) using Quad-Shield RG6 Coax Cable with F-Connectors and a Ground Rod at the base of an Inverted "L" Antenna. * LowBander - Longwire Balun 9:1 Matching Transformer http://cgi.ebay.com/_W0QQitemZ180198243591 http://search.ebay.com/_W0QQsassZlowbander * RF Systems - Magnetic Longwire Balun (MLB) http://www.universal-radio.com/catalog/sw_ant/1484.html * WinRadio - LWA-0130 Long Wire Antenna Adapter http://www.grove-ent.com/WR0130.html * Palomar Engineers - MLB-1 Magnetic Longwire Balun http://www.palomar-engineers.com/MLB-1/mlb-1.html http://www.antennex.com/palomar/page_6.htm * Durham Radio - Longwire Impedance Matcher http://www.shortwavestore.com/sws/pr...5&cat=0&page=1 * Wellbrook - Universal Magnetic Balun UMB http://www.wellbrook.uk.com/UMB.html HOW TO - http://www.wellbrook.uk.com/longwire.html * I.C.E. Model 180 Series Broadband Impedance Matching Units by Industrial Communication Engineers http://www.iceradioproducts.com/reco...age%20Matching DIAGRAM of a typical "Low Noise Antenna Setup" using a Longwire Antenna to Coax Cable Matching Transformer http://www.geocities.com/qrp_baluns/app-lmz-75.html The Wire Antenna Element - Use the Twin TelCo Wire 'As Is" for the Wire Antenna Element. *Use the Trees to Hang the Wire Antenna Element from. *Rig the Wire Antenna Element from the Trees either with Rope or Stand-Off or both. TIP - A 24-Foot Extention Ladder and some Stand-Offs can Safely get your Wire Antenna Element Up-in-the-Air 18~20 Feet. -OR- Rig the Wire Antenna Element from Branch to Branch using a separate Rigging Rope with each Tree. *Some will simply lay the Wire Antenna Element on the Ground and Tie the Rigging Rope directly to it; others will use Antenna Insulator along with the Rope. Antenna Rigging Rope - Black Nylon/Poly 3/16"~1/4" seems to be the Rope of choice for Rigging most Shortwave Radio Listening (SWL) Antennas. Advoiding the Noise-Zone - Back to the Distance in Feet between the House and the Ground Rod. *Divide this number of Feet by Three (3). *The Horizontal part of your new Antenna should only be 2/3RDs of this Distance; and leaving 1/3RD of that Distance; which is the closest to the House as a Noise-Zone Buffer. NOTE - For most Shortwave Radio Listeners (SWLs) a Random Wire Antenna that is about 100 Foot long is 'Good Enough' for their Shortwave Radio Listening Needs. After all 98 Feet is ~ 1/4WL for the 120m Band. -WRT- The Inverted "L" Antenna the 100 Feet can be the Total Length of the Antenna -or- The Horizontal Length of the Top Section can be up to 100 Feet by itself. -However- If you are into AM/MW DXing or Longwave (LW) DXing 'NDB' then 200~500 Feet long Antennas may better 'Fit' your Radio Listening Needs. RIG - The Wire Antenna Element starting at the base of the Tree with the Ground Rod. *Straight-up and Parallel from the Tree 3~5 Feet to the first Antenna Support-Point Stand-Off or via Rope. Then to the next Tree and it's Antenna Support-Point and so on until the Last Tree. Rig the End of the Wire Antenna Element with a Counter Weight and Pulley as Stress/Loading Relief for the Wire Antenna Element in Weather and Wind. Oops ! CONNECT the Antenna Wires to the Matching Transformer. Strip-off the and Inch or two of Insulation from the Two TelCo Wires. Twist and Solder them together. Then 'connect' them to the Matching Transformer. It is not neccessary to do the same on the other end of the two Wires but some people do. Out-Side Grounding at the House - Install a Ground Rod outside the House where the Coax Cable comes into the House. *Use a Grounding Block/Pass-Through-Connector to Ground the Coax Cable here before it Enters the House. Note - Connect (Bond) this Ground to the House's AC Mains Grounding Point. Connecting the Radio - Run a Coax Cable from the Out-Side Ground into the House and to your Radio/Receiver. THAT SOMETING EXTRA - A Second Wire Antenna Element at 90 Degrees {Perpendicular} from the First Wire Antenna Element. Connected to the same Matching Transformer. * BETTER would be a Second Coax Cable with a Second Ground Rod at the base of the same Tree. *The 'Space' between the two Ground Rods would be 3~5 Feet; and both Ground Rod would be connected via a Heavy Solid Bare Copper Wire. *Rig the Up-Leg of these two Wire Antenna Elements *3~5 Feet apart and 90 Degrees Away from each other. *These two Wire Antenna Elements can be the same Length or different lengths. * ALTERNATIVE would be a Second Wire Antenna Element that is Rigged under the First Wire Antenna Element by 3 Feet that has a Horizontal Length of 62% of the Longer Upper First Wire Antenna Element. *Repeating this with a Third Wire Antenna Element that is Rigged under the First Wire Antenna Element by 6 Feet that has a Horizontal Length of 38% of the Longer Upper First Wire Antenna Element is as far as you can go with this scheme. ** First 'Top' Wire Antenna Element 98 Feet (~100%) Horizontal Section would be ~ 1/4WL @ 120m ** Second 'Middle' Wire Antenna Element 59 Feet (~62%) Horizontal Section would be ~ 1/4WL @ 75m ** Third 'Bottom' Wire Antenna Element 38 Feet (~38%) Horizontal Section would be ~ 1/4WL @ 49m hope this helps - iane ~ RHF {pomkia} *. Shortwave Listener (SWL) Antennas Group =http://tinyurl.com/ogvcf GoTo =http://groups.yahoo.com/group/Shortwave-SWL-Antenna/ The SWL Antenna Discussion Group =http://tinyurl.com/ogvcf Shortwave Listener (SWL) Antenna HELP =http://tinyurl.com/ogvcf Shortwave Listener (SWL) Antenna NEWS =http://tinyurl.com/ogvcf Shortwave Listener (SWL) Antenna INFO =http://tinyurl.com/ogvcf * * * All Are Welcome : Including ELMERS and 'Want-to-be-Elmers' plus plain old "Mister-Know-It-Alls"; and even those Newbees with "I Know This Is A Really Dumb Question - But _ _ _ _ _ _ _ _ " *. Shortwave Radio Listener QSL Reports News & Info Grouphttp://groups.google..com/group/shortwave-listener-qsl-reports Read & Post Your Shortwave Listener (SWL) Reception Reports SWL-QSL-REPORTS =http://tinyurl.com/3awlyr *. The Shortwave Listener's Blessing : SWL BLESSING =http://tinyurl.com/s2bjm May You Never Tire of Listening to the Radio and Always have Strong Signals and Noise Free Reception ~ RHF {ibid}http://groups.yahoo.com/group/Shortw...a/message/9233 *. Tous Sont Bienvenus ! - - - Groupe par Radio d'auditeur d'onde courte pour des Antennes de SWLhttp://groups.yahoo.com/group/Shortwave-SWL-Antenna/ *. Alle Sind Willkommen ! - - - Shortwave Radiozuhörer Gruppe für SWL Antennenhttp://groups.yahoo.com/group/Shortwave-SWL-Antenna/ *. Tutti Sono Benvenuti ! - - - Gruppo Radiofonico dell'ascoltatore di onda corta per le Antenne di SWLhttp://groups.yahoo.com/group/Shortwave-SWL-Antenna/ *. Todos São Bem-vindos ! - - - Grupo de Rádio do ouvinte do Shortwave para Antenas de SWLhttp://groups.yahoo.com/group/Shortwave-SWL-Antenna/ *. ¡Todos Son Agradables! - - - Grupo de Radio del oyente de la onda corta para las Antenas de SWLhttp://groups.yahoo.com/group/Shortwave-SWL-Antenna/ *. = = = = Plain Old American-English Translation = = = = All are Welcome - - read more »- Hide quoted text - - Show quoted text -... |
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