Copper Tubing Cb Antenna

I used 2 1/2" muffler clamps and attached the antenna to a 10 foot push-up. A - Either one of the. Figure 1 - The 2-meter slot-cube antenna con-structed from ½-inch copper pipe and plumbing fittings. In the copper pipe variation, the Slim Jim uses more materials for no performance benefit. If you have been put off making one of these highly effective antennas because you thought it was difficult, that you needed to be a time-served plumber, or that the antenna won't work unless the design is reproduced to sub-millimetre accuracy, don't be. Keep it clean, polish with steel wool, paint to avoid corrosion. and pictures of a J-pole built for 11m from tube. COPPER ANTENNA FOIL TAPE 3/8 INCH copper antenna foil tape 3/8 inch. A long-wire antenna works best 60 feet above electrical ground (40 to 50 feet above land surface). Buy On Amazon. I arbitrarily picked 3 feet for total size. Everything is designed to use 3/8 x 24 thread that has become a standard for antennas. They can be used in both horizontal and vertical applications. Mobile CB Antennas Mobile Antenna Mounts Mobile CB Antenna Accessories Base CB Antennas Towers - Rotors - Mast Pipe - Push Up Poles. 5 SWR on this. If you are unsure of part numbers, all instruction manuals & parts lists for Maco® antennas are available here. The very first thing you are going to have to do is prepare the PVC section of pipe. Used as an antenna ground in composite aircraft. base station antennas: • If placement of antenna and/or lead conductors is any- where near power lines, be sure to contact the power supplier before installation for explicit instructions. Whether it’s a TV, radio, or cellular antenna, we have what you need for your home or commercial application. It looked like a good candidate for a "plumbers delight" copper pipe project. 2 meter long alu/copper pipe/tube of +/- 2028mm (square or round). electrical circuit for the antenna is shown at Fig. Testing was another matter I don't know if we had bad cable, a bad analyzer. Chassis ground A connection of the negative side of the electronic circuit to the chassis, or steel frame, of the equipment. 569" bringing the ratio to 2. NIBCO® copper fittings are manufactured in an ISO 9001 certified facility, and backed by a 50-year limited warranty. That upright is the (off)center support for my "Snorkel Antenna" described elsewhere on this site. This antenna has about 1. Prices weren't bad, either. The gamma match is 1/4 inch copper tubing. We are a dealer for Midland, Uniden, Cobra, Firestik Antenna, Wilson Antenna, RoadPro and More. Slide the copper tubing over the top end of the antenna, and adjust how far it extends beyond the wire to get the lowest SWR. So, I decided that a pair of dual-band copper pipe j-pole antennas were in my future. The billet mount provides easy and adjustable options for positioning your antenna for best reception and performance. A coax fitting, chassis type SO-239, is installed as. In short, he finds that the MLA-30 performs fairly well on the AM. 5 SWR on this. 25 years ago it was very difficult to reach some result, also the visualization devices were primitives. Using a large gauge copper wire that is securely connected to a copper rod driven into the ground is the most efficient method of grounding an antenna. 3 feet of copper pipe and a 2kw variable capacitor…. Whether it's a TV, radio, or cellular antenna, we have what you need for your home or commercial application. A copper pipe J-Pole antenna is a single band antenna that is much like a. Build a Long Range Antenna for $20 so I took the opportunity to try out some new ideas on a second version — a conduit and plastic-pipe model. My antenna is a well crafted piece of stainless steel with a 3/8 inch male threaded stud at one end. Don't have an antenna attached so haven't picked up. Just to let you know, I put together the 5 band pipe vertical using the cb whip antenna and it works great. You can leave the CB in the plastic bucket for easy portability or remove it and bury the CB directly into the ground. Featuring Molded Side Mount. The Wilson 5000 Trucker CB antenna was shown to have the highest "Q" rating of all antenna coils tested. After a copper tube joint has been cleaned, fluxed and assembled, it should never be left overnight before soldering? True When cleaning the end of a piece of copper tube for making a soldered joint, it should be cleaned for a distance slightly more than twice the distance required to enter the socket of the fitting?. This pipe is easy to work with, stiff, and everyone can either solder the fittings or knows someone who can. Get the best deals on Radio Communication Mounts for Base Station CB Antenna Mirror Mount,DoubleGrove Stud Commscope BB-S10-10 Heavy Duty Welded Pipe to Pipe. A - Either one of the. ASTM specification codes for hard drawn copper wire, copper pipe, copper sheet and strip, bronze strip, cartridge brass, aluminum bronze, phosphor bronze, nickel silver, and more are listed. Copper is used instead of aluminum where a reliable electrical contact is needed. Wholesalers appreciate the fact that we carry a full line of steel, bronze, copper, cast iron, brass and other fittings - Always at your disposal. Check out our range of Plumbing Clamps products at your local Bunnings Warehouse. The object of an antenna SYSTEM, is to deliver as much signal as possible to the antenna jack on the back of the radio at the frequency youre listening to. We have devices with improved specs for the professionals. As luck would have it, ordinary copper water pipe works just fine and is universally available at low cost. This multiband vertical designs provide 9 band coverage encompassing the 6, 10, 12, 15, 17, 20, 30, 40 and 80 meter bands. Chassis ground A connection of the negative side of the electronic circuit to the chassis, or steel frame, of the equipment. Here was an antenna mount for a car window, a J-shaped piece of metal. This standing wave will aggravate the situation because this voltage will add up to the already existing standing wave created by the long. However, there have been descriptions in the magazine of the Group for Earth Observation ( GEO ) of how to build a QFH using easily available copper pipe. Typical 3/4 inch plumbing pipe is a good balance between low resistance and weight, Heliax coax is good for portable antennas where the loop has to be rolled up into a compact space. The half tube is made with 6-inch PVC pipe cut 12-inches long. When I modelled the antenna I found I got better results using a larger diameter conductor. Antennas capture wavelengths in the air and convert them into audio and visual signals that you can watch on TV or listen to on the radio. The J-Pole does not need a ground plane to operate. This is a photo album showing various steps I took in preparing 1/2 inch copper pipe for my version of the G0KSC Loop Fed Array (LFA) Yagi-Uda antenna. " What makes a good Groundplane? Generally speaking anything that is a good conductor will make a good groundplane, so metal such as aluminium, steel or copper will work fine. 5mm) coiled copper pipe that I purchased at a local hardware store. We keep a range of copper pipe in sizes from mircobore 4mm to 54mm. The Antenna Farm : - VHF & UHF Mobile Radios Radio Accessories VHF & UHF Hand Held Radios Antennas Mobile Antenna Mounts SWR/Power Meters Adapters Coaxial Cable Two Way Accessories Antenna Accessories DC Power Supplies Coax Cable Accessories Amplifiers Connectors Aviation Radios Repeater Systems Towers & Accessories Scanners & Receivers Duplexers Diplexers & Triplexers VHF & UHF Base Stations. Broadcast television in North America occupies three radio frequency bands: VHF low from 54 to 88 (channels 2-6), VHF high from 174 to 216 MHz (channels 7-13), and UHF from 470 to 698 MHz (channels 14-51, channels 52-69 or 698-806 MHz have remained in limited use by some low-power stations). which is why commercial TV antennas are made with aluminum tube. However, copper is expensive and some-what heavy, so most hams limit the diameter to 1" or below. Reviving a classic restricted space vertical antenna design from years ago! Editors note: This antenna should be considered experimental. 35-37, "An Antenna Idea for Antenna Restricted Communities" - WV6N Fig. If you are looking for pvc pipe that will telescope (fit well) within another pvc pipe, we have one telescoping fitting for putting 3/4" pipe into 1. Home > CB Antennas > Magnetic Loop Antenna Homemade Magnetic Loop antenna for 27 MHz. Can I make a vertical colinear antenna from bare copper plumbing tubing? The inner conductor is going to be 0. A portable 2-element VHF yagi May, 1997 Here's a simple Saturday project: build a portable VHF yagi antenna for 2 meters. copper cube antenna. Compatible with copper tube to bs en 1057manufactured to en1254-2. Bend the antenna from one piece of wire. This tunable magnetic loop antenna is my contribution to the well established art of amateur loop making. This is usually accomplished by adding a parallel capacitance to cancel the inductive reactance of the loop at the desired frequency. Howto – 2 Meter Slim Jim antenna from Ordinary Wires Slim Jim (J Integrated Match J-Pole ) is probably the most easiest and powerful 2 meter antenna to build provided you have the exact measurement and material to build it. copper sheet (X 2) 1ft. The two horizontal loops act as planes with the gap between the two. tall with a 33 in. •Copper tubing, 45 degree elbows- propane torch and silver solder. The tubing already is formed into rings, and it is relatively easy to adjust the radius. About 4% of these are electrical wires, 1% are copper pipes, and 1% are copper bars. Many affordable CB linear amplifiers can be found in our catalogue. The larger the tubing diameter, the less resistance and the MORE efficient that antenna is. Our coil tubing comes in different sizes to provide you with what you need to fix all your water needs today. Slide the new water heater into place, recut or extend the old tubing to meet the new, and solder the tubing together using copper slip couplings. I made it 34 foot and used 13 ground radials out of #12 copper insulated wire. Why Copper. is the oldest privately-owned plastic pipe company operating today. The antenna can be positioned at a right-angle for base scanners or vertically for portable scanners. The very first thing you are going to have to do is prepare the PVC section of pipe. Attach the hose clamps about 3 inches up from horizontal 2 1/4 elbow and "T". If you are comfortable with bending, great, if not, get the hardware store to do it for you! The completed antenna is bi-directional with a rough figure 8 pattern and is composed of 2, 3/4 wavelength sections of. The antenna pictured here is made from one 10' piece of thick wall ¾" rigid copper pipe, one ¾" copper pipe "T", one ¾" copper pipe 90 ° elbow, and three ¾" copper pipe caps, one SO-239 connector, and a 3" piece of 1/8" solid brass brazing rod (from a local welding supply company). The loaded antenna has pretty narrow bandwidth - about 40 KC 2:1 SWR range, which I view as a good thing - an indication that there isn't a lot of loss. x 24 thread mounting. This makes copper wire mesh perfect for any project from do-it-yourself residential to major industrial projects. Piping Technology manufactures high-quality custom engineered pipe supports, spring hangers, pipe clamps, pipe shoes, pipe expansion joints, insulated supports, slide plates, field services, emergency services & more. This multiband vertical designs provide 9 band coverage encompassing the 6, 10, 12, 15, 17, 20, 30, 40 and 80 meter bands. We provide energy-efficient solutions that help our customers effectively manage electrical, hydraulic and mechanical power more efficiently, safely and sustainably. Choose Tram for your next antenna installation project and stay connected with this High-Power 3,000-Watt CB Antenna with 16 in. Being the crafty maker type, I wanted to build my own antenna. How to Build Antennas. A quarter-wavelength antenna is easy and inexpensive to build and can be an effective antenna with a low angle of radiation (that is, power is radiated out, not up). Please check back often if you do not see what you want, we are adding a lot more product to this section. 100 MHz and am using copper pipe as the driven element. the parts i have now is 150" 1/2" copper water pipe. The Joystick antenna was used many years ago as an all band vertical HF antenna under restricted space situations that would cover from 80 meters thru 10 meters with a tuner and was a great commercial success!. was at lowes yesterday looking at copper pipe for antenna use. 11-meter-cb-antennas. 35-37, "An Antenna Idea for Antenna Restricted Communities" - WV6N Fig. A VHF Marine Antenna is an important equipment for every boat owner. They typically use between 14-16 gauge copper wire for "both" the antenna and matching coil thats. How about aluminum instead of copper? Makes no significant differences at all. Coax cable is routed through the bottom ¼ lambda element, thus no balun is needed – the sleeve is actually the balun. 2 meter long alu/copper pipe/tube of +/- 2028mm (square or round). Item 9 is a 11/4-inch nipple. The coax feed is a small loop that comprises the split ends of the coax and about 1/3 of a turn of the copper tubing in the center of the coil. In particular, 3/ 4-inch. 1/2" aluminum tube vs 1/2" copper tube? I know that length and diameter have an effect on resonance and impedance, but does the particular metal? My question is specifically about element length vs type of metal element. So I cannot receive the advantages of the "ground" effect of an automobile frame. The copper tubing comes coiled in a box, and the material shown in the picture was excess tubing. Loading Unsubscribe from BOOTYMONSTER? sigma 4 - vector 4000 home-brew CB antenna - Duration: 1:51. To hold the plug in place during the soldering process, I rolled several grooves around the outside of the copper pipe as seen here. Get all you need today from RVpartscountry. The antenna, not including the coax would cost approx $25. I reduced the diameter until the results started worsen. It should be at least 30' long and made of multi-strand copper antenna wire supported a minimum of 15 feet off the ground. My main goal was to improve the performance of the magnetic loop antenna on the 40 meters band. You searched for: copper antennas! Etsy is the home to thousands of handmade, vintage, and one-of-a-kind products and gifts related to your search. When the fitting and tube are assembled and heated to correct temperature, solder applied to the mouth of the fitting becomes molten. Cushcraft achieved a major breakthrough in the development of an HF multiband vertical antenna that has been specifically designed for use with a tuner and amplifier. In particular, we both were impressed with Harry’s 20 Meter Loop Antenna–it’s such a simple project and requires. This Tram Oil-Filled Coil CB Antenna is very heavy-duty with great field strength. Even with your. I intend to pound a pipe into the ground and apply some sort of flange to receive the 102 inch antenna. Go out and pick up 8 stainless steel CB whips - or. Dual Section Filter Mount 2 each of above end to end and tune both ends for a flatter top of bandpass. **PERFORMANCE GUARANTEE: The Wilson 2000 Trucker will outperform the CB trucker antenna it replaces or your money back. This might reduce any RF that might sneak back in to your radio and cause RFI. 15mm copper pipe with 30cm wire attached, female spade connector soldered at the loose end of the wire. Table 1 provides a detailed parts listing for the antenna. Very cheap, plus:. Aluminum wire is not expensive, but it is the least desirable wire for antenna use. The coax (RG-8 or Equivilant) is affixed to the pipe as shown with movable copper clamps. Shop our complete line of CB antennas, including complete kits, fiberglass, magnetic and more, to get you up and running. If there are copper-stained, can be quickly rejuvenated by soaking in a few ounces of vinegar with half a teaspoon of salt added. Auto Power Online brings you the hottest and latest car performance parts for your car. Shop for 2 Meter Antennas here. Enjoy the photos. Copper Electronics, Inc. Flare steel, stainless steel, hard copper, soft copper,brass, aluminum and mild steel tubing with precision and without galling. 25" pipe with enough friction to hold it in place. I wanted it to be very easy to build, broad banded, and inexpensive, all good antenna attributes. The whole antenna is held together by two lamp tubing nuts and a plastic lamp fin-ial, also readily available at hardware stores (see Figure 2). We have devices with improved specs for the professionals. I am not going to explain the theory of this antenna since it is very well described in literature and on many web sites (see my links page) but, more practically, I would like to give here an overview of the successful designs I have tested and some useful tricks. An electrical connection to earth can be used as a reference potential for radio frequency signals for certain kinds of antennas. Ferguson is the #1 US plumbing supply company and a top distributor of HVAC parts, waterworks supplies, and MRO products. 3 Antenna Compendium. In the copper pipe variation, the Slim Jim uses more materials for no performance benefit. RST Engineering They have an antenna kit available to make up to 6 antennas utilizing copper sticky tape and toroid ferrite rings to fine tune the system. Over the last 28 years I have used or have seen used every kind of wire used to make an antenna. The evaporators used for the refrigeration and the air conditioning applications have different types of construction depending on the application. In the Antron advertising, it explains that it is a '1/2 wave over 1/4 wave variable mutual transductance tuned antenna' with a dB gain of 9. hard copper pipe for antenna mount Welcome to the CB junkies cb radio forum You are currently viewing the forum as a guest. 5MHz-57Mhz. We fabricated two identical J-Poles using the dimensions in this document, and both of them performed quite well, with a resonant frequency toward the lower end of the 2-meter Amateur band and a VSWR of 1. 4) It is easily available from plumbing supply stores in any size from 6mm to hundreds. The part directly in contact with the earth - the "earth electrode" - can be as simple as a metal rod or stake driven into the earth, or a connection to buried metal water piping (the pipe must be conductive). I don't expect any miracles, in fact failure on the first few tries. A friend, WA7YLI, has similar interests. To hold the plug in place during the soldering process, I rolled several grooves around the outside of the copper pipe as seen here. Figure 1 - The 2-meter slot-cube antenna con-structed from ½-inch copper pipe and plumbing fittings. However, copper is expensive and some-what heavy, so most hams limit the diameter to 1" or below. Saturday, May 18 th, 10:00 a. please give me ideals equipment eg radio. RST Engineering They have an antenna kit available to make up to 6 antennas utilizing copper sticky tape and toroid ferrite rings to fine tune the system. Typical 3/4 inch plumbing pipe is a good balance between low resistance and weight, Heliax coax is good for portable antennas where the loop has to be rolled up into a compact space. Pipe Hangers, Brackets Clips and fixings used for Hanging and fixing Steel Pipe, Copper Pipe, Stainless Steel Pipe, PVC Pipe and ABS Plastic Pipe and all tubular products. All vertical antennas need to be grounded in some way. Many thanks to SWLing Post contributor, David Day (N1DAY), who has completed a thorough review of the MLA-30 loop antenna. You should have a 1. Tube, pipe, EMT and bolt manufacturers haven't gotten together and helped us much when it comes to telescoping their products inside one another. A mobile CB antenna uses the car body as the ground. Richardson, Texas Phil Salas - AD5X AD5X PVC Tubing 1" Copper Pipe Ground 1/2" PVC. We fabricated two identical J-Poles using the dimensions in this document, and both of them performed quite well, with a resonant frequency toward the lower end of the 2-meter Amateur band and a VSWR of 1. It is also the material of choice for plumbing, taps, valves and fittings as well as the ideal material used in the moulding industries. Mophorn YP-9 Manual Bench Top Compact Bender Pipe Bending Machine 7 Dies 1-3inch Metal Fabrication Tube Rod Pipe Bender 44ft Mount Powdercoat Telescoping Handle Maximum 5/8 Thick 1-15/16inch Width. It looked like a good candidate for a "plumbers delight" copper pipe project. National Pipe Thread Tapered (NPT) is a U. x 24 thread mounting. Chassis ground A connection of the negative side of the electronic circuit to the chassis, or steel frame, of the equipment. VLF Tube Receiver Project and realization by Giuseppe ACCARDO, Iw0BZD On-field tests by Alan Scremin. figurations constructed from copper pipe, 450 Ω ladder line, and aluminum rod. 5 m, diameter 50 mm) straight copper pipe (skinharded, length – 1420 mm, diameter 15 mm) soft copper pipe (bunch, length – 3120 mm, diameter 15 mm. Because of its esthetic appeal, and inherent and variable value, copper is now included in many precious metals investment portfolios. , when it comes to simply listening to shortwave radio… generally speaking just use a LONG. This document describe how the prototype was built, the purpose is to give some construction hints to people who wants to try this kind of antenna. An antenna is to a citizens band radio what a transmission is to an engine: It transfers power from its source to some useful destination. This pipe is easy to work with, stiff, and everyone can either solder the fittings or knows someone who can. Now build the next band, for eg. Type M and Type L copper tubing help provide flexibility when working around obstacles. AMANDX PRESENTS CHOOSING WIRE FOR AN ANTENNA One of the most asked questions when it comes to antennas is what kind of wire should I use. Check out our range of Plumbing Clamps products at your local Bunnings Warehouse. if you want to provide earth ground for it you'll need a run of heavy gauge copper wire long enough to reach the rod. You should have a 1. Coax cable is routed through the bottom ¼ lambda element, thus no balun is needed – the sleeve is actually the balun. 93 KB How ET Really Called Home. Then you should be able to use it as the grounding electrode for the antenna. I guess I could split some pvc pipe and place it around the copper pipe and clamp the antenna to the mast. Attach the hose clamps about 3 inches up from horizontal 2 1/4 elbow and "T". Ive seen some small ones with pvc pipe just wondering what is inside that pipe and how to make one to achieve the best range. When the fitting and tube are assembled and heated to correct temperature, solder applied to the mouth of the fitting becomes molten. Your first antenna - the half-wave dipole. My J-Pole antennas are constructed out of Type M solid copper pipe for the ultimate in durability and weather resistance. The braided wire which forms the outside conductor of the coax is soldered to all four radial wires. Drill through both PVC boards and the EMT pipe wherever it won't interfere with antenna or reflector and cut pieces of 3/4" pvc water pipe to length for spacers to achieve the total spacing of 4". Each radial is evenly spaced (90 degrees apart from each other) around the vertical element. Lightweight yet strong, copper piping resists corrosion and can be easy to cut and join. Wilson offers CB antennas, studs, CB antenna mounts, cables and other accessories to meet all your needs. Keep it up until it has gone in as far as it will go, then (if it hasn't gone in the whole 10 feet) cut it off and solder a copper cap on the end. • Avoid crossing antenna conductors under electrical power lines. com FREE DELIVERY possible on eligible purchases. Next Video. Schematic fig1. For antennas that are not used outside for long periods of time (such as portable or "emergency" use) PVC may be a reasonable choice. Item 9 is a 11/4-inch nipple. All joints are soldered with rosin core solder. That's what I do. The mechanical properties make the use of the center supports unnecessary. In addition to its inherent qualities of beauty, durability and low maintenance, copper's reusability makes it an ideal application in sustainable projects. 1 - Screenshot of AA5TB's loop calculator*, showing a 6. There is quite a bit of talk these days between Amateur (Ham) Radio operators about the desirability for "good grounding systems" for their home radio stations. With this Browning antenna you can enjoy 10000W of power to ensure a wide range of reception. I proceeded to make a very heavy dipole from copper pipe, akin to the type used for J-poles. MFJ-1890 10 Meter Moxon Antenna (Tested on 10 meters & 11 meters/CB Band) MFJ MOXON Quick Look From CBRADIOMAGAZINE. Featuring Molded Side Mount. You searched for: copper antennas! Etsy is the home to thousands of handmade, vintage, and one-of-a-kind products and gifts related to your search. 4 GHz frequencies. Enjoy the photos. It is driven six feet deep, and connects to a buried #8 buss wire running around the outside of the building. LME Copper Contract specifications. Cheap pipe fittings, Buy Quality sanitary pipe fittings directly from China plumbing pipe fittings Suppliers: 15mm Copper End Feed Equal Cross 4 Ways Plumbing Sanitary Pipe Fitting for gas water oil Enjoy Free Shipping Worldwide! Limited Time Sale Easy Return. I used 2 1/2" muffler clamps and attached the antenna to a 10 foot push-up. • Avoid crossing antenna conductors under electrical power lines. Owens Corning® SSL II® with ASJ Max Fiberglas™ Pipe Insulation is molded out of heavy density resin bonded inorganic glass fiberglas that come in one-piece, 36" (914mm) long, hinged sections. 5MHz antenna, by adding pipe to the T-connector that is the base (mast mount) of the 435MHz antenna, I use 1/2" for the vertical and 3/8" for the stub of this section. 3 April 2009. 5” diameter (nominal, exact is 0. The antenna, not including the coax would cost approx $25. Some work okay. I got both, the ham and cb running in the house now. Our shop is the only place where you can buy the cheapest Watt linear for CB radio! You can order online Texas Star linear amplifiers for CB radios or any other products made by popular companies right away. Bend the antenna from one piece of wire. You can use the same antenna calculators ham radio ops use just adjust the frequency for CB. you will not be able to assemble the antenna. The antenna pictured here is made from one 10’ piece of thick wall ¾ ” rigid copper pipe, one ¾ ” copper pipe “T”, one ¾ ” copper pipe 90° elbow, and three ¾ ” copper pipe caps, one SO-239 connector, and a 3” piece of 1/8” solid brass brazing rod (from a local welding supply company). If you are looking for pvc pipe that will telescope (fit well) within another pvc pipe, we have one telescoping fitting for putting 3/4" pipe into 1. A copper TV antenna? Well, copper is commonly used in some consumer electronics products, but that’s not the point. I wanted it to be very easy to build, broad banded, and inexpensive, all good antenna attributes. FireStik (IBA-5) - Indoor CB Antenna, Tunable Tip, Base Hub, 4 Radials, 18' FireFlex Coax, 5' Tall, 1000 Watt, Base CB Antennas. 5mm) coiled copper pipe that I purchased at a local hardware store. Because of skin effect, the resistance of the tubing or wire depends on the surface area of the conductor and tubing has a much greater surface area than wire, for the same length. Without flame, induction helps create a safer, cooler working environment. if you are making an antenna with wire elements, thicker wire = thicker elements. Use steel wool to clean the copper and solder the antenna together as you would with normal copper tubing. My all time favorite is an oldie from Ham Radio Magazine dated April 1989[1]. The booms can be copper pipe or aluminum "U" channel; dipole elements should be made of the same metal as the boom to prevent corrosion over time due to electrolysis. I built the main loop of my SSTML from quarter-inch diameter soft copper tubing. In fact, a half-wave dipole will often outperform many compromise commercial multiband antennas. The whole antenna is held together by two lamp tubing nuts and a plastic lamp fin-ial, also readily available at hardware stores (see Figure 2). Highlighted. The antenna, not including the coax would cost approx $25. This one was constructed using copper (gas) tubing, of 8mm diameter (5/16"?). The spacer under "B" is 3/4" plastic pipe cut to hold and re-enforce the two copper pipes. Grounding will eliminate static electricity, as well as protect. You should put the antenna as high into the air as you can - and try to get it away from any buildings. A Small Transmitting Loop Antenna for 14MHz and 21MHz (This is an antenna you might consider if you have limited space) by Lloyd Butler VK5BR (Based on material originally published in Amateur Radio, November 1991). The Cresline Team is comprised of the industry's most experienced professionals who are the backbone of our success. In addition to its inherent qualities of beauty, durability and low maintenance, copper's reusability makes it an ideal application in sustainable projects. Low Cost High Performance VHF Dipole Array This project will provide you with a VHF high band antenna that can be adjusted for an omni directional pattern with 6dB gain over a dipole or a directional pattern with 9dB of gain. 25" outside diameter (exact) pipe and the outside shield is going to be 0. Typical 3/4 inch plumbing pipe is a good balance between low resistance and weight, Heliax coax is good for portable antennas where the loop has to be rolled up into a compact space. This is a photo album showing various steps I took in preparing 1/2 inch copper pipe for my version of the G0KSC Loop Fed Array (LFA) Yagi-Uda antenna. Telescoping Pipe and Tube Please refer to Pipe, Tube and Conduit for more information. So I basically just cut a piece of wire to that length. Two copper straps tie the tower to the inside bulkhead plate. On the bottom of lamp tubing below the antenna. Keep it up until it has gone in as far as it will go, then (if it hasn't gone in the whole 10 feet) cut it off and solder a copper cap on the end. 4G 7DB Panel Orientational Refitting Antenna Signal Booster For SPARK MAVIC pomiaq10113-limited edition - www. (There isn't any need to remove the paint; mine was flaking and I didn't like the looks. Not hard to build at all. Typically, magnetic loop antennas can be built from coaxial cable, hardline, or solid copper or aluminum tubing or ribbon. So, I decided that a pair of dual-band copper pipe j-pole antennas were in my future. This balun adds a short-circuited sleeve around the coaxial cable, which somewhat resembles a bazooka, giving it the name. What is the best way to make a scanner antenna for indoor use possibly outdoor. This is called the ground plane of the antenna. 25 years ago it was very difficult to reach some result, also the visualization devices were primitives. A number six solid copper wire ties the Telco and alarm ground to the feed line ground. COPPER STRAP, 1. This might reduce any RF that might sneak back in to your radio and cause RFI. I fabricated 2 cross braces out of PVC pipe and T's. Go out and pick up 8 stainless steel CB whips - or. WIKIPEDIA, The Last Word on z¾” Copper Tubing, Rigid or Flexible. One example might be in antenna construction, but this is not what we usually encounter. The best way to cut copper pipe is with a wheel-type tubing cutter. Schematic fig1. I intend to pound a pipe into the ground and apply some sort of flange to receive the 102 inch antenna. I used #6 copper wire to connect the arrestor to a 5/8 inch wide 8 foot long copper clad ground rod driven at the bottom of each pole with a relay box. Wide range of aluminum tubing available. Written By: Scott Wolfington The following article is based on a HamUniverse. In order to clean a pipe, one does not need to use a heavy abrasive or a dangerous chemical just to remove the stain. 5MHz antenna, by adding pipe to the T-connector that is the base (mast mount) of the 435MHz antenna, I use 1/2" for the vertical and 3/8" for the stub of this section. As we said, some CB antennas have a tuning tip, a small screw at the top of the antenna, like the Firestik. AMANDX PRESENTS CHOOSING WIRE FOR AN ANTENNA One of the most asked questions when it comes to antennas is what kind of wire should I use. BOOTYMONSTER 14,358 views. Here a collection of links to make you own dual band VHF UHF copper cactus antenna. Typical 3/4 inch plumbing pipe is a good balance between low resistance and weight, Heliax coax is good for portable antennas where the loop has to be rolled up into a compact space. s antennas where to get , cost etc ,,,. This is my takeoff on the antenna - Heavy copper tubing, bigger size, large capacity hat, large beryllium copper fingers, and I don't mind drilling holes in my vintage Dodge. Reviving a classic restricted space vertical antenna design from years ago! Editors note: This antenna should be considered experimental. Changing the diameter changes the resonant frequency only a little. This loop is usually made from copper tubing with a tubing diameter as small as ½", up to an inch in diameter. Copper block from power distribution panel is used to terminate my radial farm.