Copper Tubing Cb Antenna


I use an mfj 929 tuner to tune it up. Wholesalers appreciate the fact that we carry a full line of steel, bronze, copper, cast iron, brass and other fittings - Always at your disposal. About 4% of these are electrical wires, 1% are copper pipes, and 1% are copper bars. com offers 1,602 antenna pipes products. The Antron 99 is really a CB antenna, but with only slight returning, it works very well on the 10-meter band. This post relates to the design and build of a 160/80/40 Meter magnetic loop antenna. 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). Both metals solder well, too. in simple terms, it works better for more adjacent channels. This calculator is designed to give the vertical length (height) of a particular antenna, for the frequency and wavelength chosen. id attach it to a 10 ft pipe and attach the pipe to the tree with a coax choke at the feed-point. The objective of this article is to disseminate some practical information about. The most common material for home building small ham radio loop antennas is common copper plumbing pipe. So if you want to communicate with existing CB's, or with CB's in a vehicle, then it's best to orient your antenna vertically--running up and down. Connect cable to transformer, tape and run down the 2" PVC pole. 625") diameter copper pipe. If you're concerned about your antenna handling wind resistance, a coil antenna is a must. 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. The tubing I used was 1/2" diameter double wall polyolefin tubing with polyamide adhesive. The 1/2-wave 80-meter doublet with ladder line all the way to a 1:1 bifilar choke/balun in or near the tuner is a much better antenna for 80-10, provided you adjust the ladder line length to avoid the voltage and current anti-nodes (i. For the antenna, connect 24-gauge speaker wire to A. 4 foot diameter STL (Small Transmitting Loop) made from 1" type M copper pipe:. , when it comes to simply listening to shortwave radio… generally speaking just use a LONG. Prices weren't bad, either. To hold the plug in place during the soldering process, I rolled several grooves around the outside of the copper pipe as seen here. Keep the plate aligned at 90° to the 22mm tube at the right place (e. 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). One of the simplest yet very functional antennas is the Marconi -- often called a random wire or long wire. Aluminum wire is not expensive, but it is the least desirable wire for antenna use. Item 9 is a 11/4-inch nipple. Build your own antenna to pull in stations broadcast in your area. 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. W2BRI - An Easy Guide to How to Build Your Own Magnetic Loop Page 5 of 19 4. Instructions for, and discussions of, similar designs are available in this Instructable from William Ruckman. Quarter-Wave Vertical Antenna Length Calculator. A coaxial cable runs through one side of each open-wire-line to feed each dipole. Connect cable to transformer, tape and run down the 2" PVC pole. Dipole is made out of 3/4 inch copper pipe. Type M and Type L copper tubing help provide flexibility when working around obstacles. Why Copper. A portable 2-element VHF yagi May, 1997 Here's a simple Saturday project: build a portable VHF yagi antenna for 2 meters. My original plan was to make it a fixed capacitor out of a length of coax for a single 40m frequency. About 8% of these are stainless steel pipes, 1% are pipe fittings, and 1% are steel pipes. Schematic fig1. 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. Drive a piece of pipe in t ground with about a foot above the ground and set the antenna mast over it and firmly mount the mast at roof level. Enjoy the photos. You want to be sure to get a solid copper wire, as stranded wire can become brittle over time. To adjust that type of antenna, you turn the screw in or out, easily lengthening or shortening the antenna. Buy Saddle Plumbing Pipe Fittings and get the best deals at the lowest prices on eBay! Great Savings Free Delivery / Collection on many items Pipe Hose Copper. NWR Supply Of Pipe Copper Pipe Copper Seamless Arsenical Fully Annealed Size O D 10Mm X 1 6Mm Thickness Random Length 5 To 9 Metr , Due Date: 28/01/2020 ,Tender Value: 0 , Location: Rajasthan Tender Notice 22321774. 5% shorter to begin with, thus the antenna ends up right on the design frequency after the tubing is put on. The very first thing you are going to have to do is prepare the PVC section of pipe. we got by with bare copper-stranded "radio. Simple CB Base Station Antenna: This is a simple base station CB antenna You can make in 30 minutes out of a bit of PVC pipe and fittings, some wire and a SO239 coax connector and a piece of coax to connect it to your radio. Your situation will determine what you use. Very cheap, plus:. 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. Copper Pipe J-Pole Antennas By Rory Eikland, KG6HCU and Ken Larson, KJ6RZ Rory and I have had excellent experience building and using J-Pole antennas constructed from 1/2 inch ridged copper pipe, so we decided that we would share our experiences. RF current flows at the surface within a few skin depths of the top. A copper TV antenna? Well, copper is commonly used in some consumer electronics products, but that's not the point. EMCO offers plumbing supplies, HVAC heating and cooling supply, hydronic heating, water pumps, fire sprinklers and more. pipe is inexpensive and worth purchasing at a home improvement store Copper pipe can also be cut with a fine-tooth hack saw. The insulation is tailored to fit for copper and iron pipe applications. Mobile CB Antennas Mobile Antenna Mounts Mobile CB Antenna Accessories Base CB Antennas Towers - Rotors - Mast Pipe - Push Up Poles. Shop for Copper Tubing at Ferguson. chore bending even 15mm copper pipe, so unless you are another Mr Universe or you are prepared to anneal the 22mm tube I would stick to the 15mm version! A Note from Judd Jensen: The diameter of the copper pipe has nothing to do with the resonant frequency of the antenna. Because of the small sleeve/coax diameter ratio, only the sleeve must be shortened with pipe cutter to tune the antenna. The mount foot can be used on either end of pipe for excellent mounting. Fiberglass antennas. A wide variety of antenna pipes options are available to you, such as astm, bs, and jis. These PVC vinyl end caps are an excellent choice for most end cap applications. 25" outside diameter (exact) pipe and the outside shield is going to be 0. Copper is really well behaved in the pipe, I have had no issues of bite with the blend. Bend the antenna from one piece of wire. Copper wire mesh and screens are available from T W P in a variety of weaves along with a comprehensive selection of mesh counts. It seems one of the best kept secrets in the amateur radio community is how well a small diminutive magnetic loop antenna can really perform in practice compared with large traditional HF antennas. Fiberglass antennas. If the conduit meets all these criteria, then you'll want to bond the antenna mast to it using at least 10 AWG solid copper wire (810. If large antennas are required, copper tubing can be used to advantage, or copper sheet or even printed circuit boards soldered together as panels in a pseudo-circle! Let us consider a HF example at f = 30 MHz (λ = 10 meter band). Here a collection of links to make you own dual band VHF UHF copper cactus antenna. The first requirement for a magnetic loop antenna is that the antenna must be resonant. Low Cost HF Antennas & Accessories Phil Salas - AD5X [email protected] But say I clamp the antenna parallel to the metal mast, you know, along side of it to give it more support. This antenna has a 3/8 in. 3,000-Watt CB antenna. With your crystal radio you will be able to experiment with the circuit and the antenna to get the best reception. In stock and ready to ship. The larger the tubing diameter, the less resistance and the MORE efficient that antenna is. Reviving a classic restricted space vertical antenna design from years ago! Editors note: This antenna should be considered experimental. All joints are soldered with rosin core solder. The antenna has upwards of 20MHz band width at the 2:1 VSWR points which will. You should be able. Type M and Type L copper tubing help provide flexibility when working around obstacles. Pictures of the copper tubing version. Our select line includes: Coil, copper, and flexible tubing, pipe joint compound, and teflon thread seal tape. A few ground rods are made of copper tubing. Soft-drawn copper tubing is, electrically speaking, quite good but it is not a very good choice for use in elements, mechanically speaking:. Call: 888-458-8743. Made out of aluminum tubing Uses PVC as an insulator Is 32 feet high Feed at the base to a SO239 connector Radials: 32 (and not all the same length - 35 feet to 20 feet) Some 100 radial pins in the lawn. The elements are phased with #6 copper wire and held in place by compression couplings. I live in a townhouse and have “Attic Antennas” exclusively so I need a good multi-band antenna with low SWR. 1 - Screenshot of AA5TB's loop calculator*, showing a 6. Buying the first antenna you come across in a market place is not the best way to get a quality one. Practical Experiments with Magnetic Loop antennas. In the picture above I used hose clamps to clamp the coax pig tail directly to the antenna. Pull the Braid Tube down the coax, using the. Construction Cut the copper tubing to the lengths indi- cated in Table 1. I've also made coils from #14 solid copper wire, wound around drill bits or broom handles to form them to a shape. Each Antenna is tuned for center frequency. Drive a piece of pipe in t ground with about a foot above the ground and set the antenna mast over it and firmly mount the mast at roof level. So, I decided that a pair of dual-band copper pipe j-pole antennas were in my future. There are materials usually found inside homes that can be. After soldering, cut a 1/ 2 inch gap in the center of the cop-per pipe on the tuning capacitor side of the loop. Fiberglass antennas. What is a good *simple* 10 meter antenna? lower half made out of copper pipe, coax up throught the pipe. We have devices with improved specs for the professionals. One of the most common designs is the dipole antenna, a copper wire antenna consisting of two equal legs. Then cut the two short PVC center support arms. electrical circuit for the antenna is shown at Fig. Can the radials be shorter or longer? This will be used for 11m CB band. As the name implies, the main loop is made from a Hula-Hoop with the metallic paint stripped off and a single turn of 14AWG copper wire inserted inside the hoop. Portable Magnetic Loop Antennas Ham Radio's Best Kept Secret Eric Norris WD6DBM v2. 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). Why build antennas out of copper and not aluminum or stainless steel. I've got an old Realistic Navajo base station that seems to work ok, as it's one of the newer models in black plastic, a TRC-433 (not the old wood grain ones), and I've also got a Cobra mobile CB radio, model 18 WX ST II, and all I have for now is a crappy magnet mount helical. 569-in), 18. 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. chore bending even 15mm copper pipe, so unless you are another Mr Universe or you are prepared to anneal the 22mm tube I would stick to the 15mm version! A Note from Judd Jensen: The diameter of the copper pipe has nothing to do with the resonant frequency of the antenna. Your situation will determine what you use. A CB radio comes set up for four watts of power, which is a level regulated by the Federal Communications Commission. com to get all your RV plumbing needs. stainless steel shaft. if you are making an antenna with wire elements, thicker wire = thicker elements. 11 METER CB ANTENNAS. As the others have said it will be easy to see and an eyesore. A half wave radiator fed at one end presents a very high feedpoint impedance, at least several thousand ohms. Data for over 2350 copper alloys, brasses, and bronzes including composition and physical property data are in MaWeb. You need an antenna and the experts at Solid Signal are here to make sure you get the right one. com FREE DELIVERY possible on eligible purchases. A portable 2-element VHF yagi May, 1997 Here's a simple Saturday project: build a portable VHF yagi antenna for 2 meters. When copper is heated, it decomposes to form copper oxide and carbon dioxide. Copper, inter-digital filters have also been tested. Made contacts all over Europe all the way to Japan and Argentina from New Albany, MS. David Reid PA3HBB / G0BZF. Mupro, Crane, Greenaway, Flamco and Unistrut are the most common systems available. Just to the LEFT of the skinny palm tree is another upright, also painted snorkel camo pattern. One example might be in antenna construction, but this is not what we usually encounter. A Copper Pipe Jpole for Two Meters. Pictures of the copper tubing version. When I modelled the antenna I found I got better results using a larger diameter conductor. About 4% of these are electrical wires, 1% are copper pipes, and 1% are copper bars. 569” bringing the ratio to 2. id attach it to a 10 ft pipe and attach the pipe to the tree with a coax choke at the feed-point. While all the designs performed well, each had shortcomings. Instead of throwing something together, why not build something a bit more "deterministic" like a copper-pipe J antenna (improperly referred to as a J-pole, which is a variant of the J). Any idea for the strange resonance frequency?. Maybe try a jpole made from copper pipe, it's easy and works great. Y ou will be very happy once you realize how much you can save (huge savings today, on Tuesday) on faucets, fixtures & pipes, bathtub or shower install, leak detection, sepctic systems, water heaters and gas piping or any other plumbing project in Zeeland, because the most reputable licensed plumbers compete for your attention. Richard Lau) at Nibong Tebal, South of Seberang Perai, Penang. Q - What kind of pipe should I use for my antenna, is fence post strong enough to hold my antenna up. Offer Details: To take advantage of our new, super-fast delivery option, simply select Ground Shipping method in Cart or Checkout. To adjust that type of antenna, you turn the screw in or out, easily lengthening or shortening the antenna. If your antenna mount is one that is designed to accept a coaxial plug (such as the 2 ended PL259) or a PL259 with a fire ring on the other end (such as the FireStik MU8R Single Antenna CB Coax) then your work is easy. 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. Winegard DS-3000 J Pipe Antenna Mount. I crimp the copper near the center to hold the wire in place, and heat the copper with a propane torch. The solid copper wire was chosen due to its stiffness and rigidity when the Slim JIM is mounted. The antenna can be positioned at a right-angle for base scanners or vertically for portable scanners. The coil is made from 1/8-inch-diameter copper tubing and consists of 5 turns, one inch in diameter with 1/4-inch spacing between turns. Both metals solder well, too. 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. The tubing I used was 1/2" diameter double wall polyolefin tubing with polyamide adhesive. Can I make a vertical colinear antenna from bare copper plumbing tubing? The inner conductor is going to be 0. A wide variety of antenna copper options are available to you, such as bare, pancake coil copper pipe, and insulated. " 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. When the fitting and tube are assembled and heated to correct temperature, solder applied to the mouth of the fitting becomes molten. Many also feel it is too good for the price. down the pipe and stick the pipe in the ground, pulling it up and pushing it down so that the water helps drill the hole in a manner just like you described. plywood board (X 2) SMA connecter (female) The antenna structure to be built consisted of three main components; a ground plane, the radiating tubular elements and its coupling counterpart, and a standardized connection. Table 1 provides a detailed parts listing for the antenna. Large diameter copper pipe is better since the radio frequency current flows primarily on the outside of the conductor rather than the core. 25" pipe smoothly. If the water supply lines are copper, you can attach PEX tubes to the copper lines using special copper-to-PEX connectors. We have devices with improved specs for the professionals. Testing was another matter I don't know if we had bad cable, a bad analyzer. A copper pipe tends to form a bluish green patina during long periods of use, especially when it is exposed to moist air. However, copper is expensive and some-what heavy, so most hams limit the diameter to 1" or below. How to Build Antennas. 625") diameter copper pipe. A major consideration was to build it so it required no tuning of the feed point. At Sheridan Supply, you will get best deals for HVAC, filters, welding and plumbing products. The ends of the tubing at the center of the antenna should be flattened with a hammer or in a vise. capacitance hat. Depending on the diameter of your pipe, the magnet will appear to defy gravity and could take 30 seconds to travel 1m downwards. Copper is used instead of aluminum where a reliable electrical contact is needed. Ideas for a homemade mobile antenna. 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. 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. You should have a 1. Bottom Load Heavy-Duty Copper Coil. If your antenna mount is one that is designed to accept a coaxial plug (such as the 2 ended PL259) or a PL259 with a fire ring on the other end (such as the FireStik MU8R Single Antenna CB Coax) then your work is easy. Then cut the two short PVC center support arms. This page documents a build of a 2-element 1/2 wave collinear J-Pole performed by Harry, KC9EOT, and myself, KB8OJH. " Home Guides | SF Gate, http. Choose Tram for your next antenna installation project and stay connected with this High-Power 3,000-Watt CB Antenna with 16 in. Note that a lamp tubing nut is also required inside the copper pipe cap. A Stealthy Homebrew Vertical Dipole Using Mobile CB Antennas. 569” bringing the ratio to 2. 5" Cu pipe, SMB connectors mounted on side of pipe or end, 3. 3 feet of copper pipe and a 2kw variable capacitor…. 5 mm2 (AWG #15). The coax (RG-8 or Equivilant) is affixed to the pipe as shown with movable copper clamps. I cut three inch sections of close-fit copper tubing, and put small pieces of rosin core solder inside. 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). pipe is inexpensive and worth purchasing at a home improvement store Copper pipe can also be cut with a fine-tooth hack saw. EAD is the UK Distributor for Antenex Inc. 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. All information, images, and documents on this website are the sole property of Cushcraft Any reuse or redistribution of the contents of this website are strictly forbidden without authorization from Cushcraft. When mobile, I installed a Tram 1185 mag-mount antenna (which also works well, especially with the new FTM-100DR!). s antennas where to get , cost etc ,,,. Low Cost HF Antennas & Accessories Phil Salas - AD5X [email protected] This antenna is a reasonably portable three element Yagi-Uda for Field Day use. In order to clean a pipe, one does not need to use a heavy abrasive or a dangerous chemical just to remove the stain. Connect the Antenna to Ground. In short, he finds that the MLA-30 performs fairly well on the AM. While standing a couple of feet from the transmitting antenna, hold a 6-inch long, 4-Watt, fluorescent lamp in the other hand and touch either end of the copper pipe with it. It seems one of the best kept secrets in the amateur radio community is how well a small diminutive magnetic loop antenna can really perform in practice compared with large traditional HF antennas. 's range of innovative mobile radio antennas for VHF, UHF, Tetra, ISM and GSM frequencies. Copper Sleeve Splice. The antenna may be built as a MonoBander, DuoBander, TriBander, QuadBander or whatever with great success. Tram Antenna found in: CB Base Antenna, No Ground Plane, For All Applications, Scanner 25MHz–1,300MHz VHF/UHF Super Discone Base Antenna Plus CB Transmit Bands, 46" VHF Marine Antenna, CB Antenna Quick Disconnect, Glass Mount. Aluminum pipe comes in 20' lengths and is measured in nominal sizes, but be sure to check the inside and outside diameter before ordering. "In effect a mobile CB antenna is only half the equipment needed to transmit a signal, without a sufficient groundplane an antenna will not work very well at all. The half tube is made with 6-inch PVC pipe cut 12-inches long. All Bands Vertical Antenna-HF (homebrew) A few months ago my friend 9W2 AYR(Anuar) and I visited my new friend 9M2LR (Mr. I just used standard 14 Gauge solid copper wire from Home Depot. 8-element collinear omni antenna The 24dBi Conifer dish has been modified by myself, with a custom-made copper and brass dipole. 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. Some work okay. Do not over-tighten the clamps because the copper pipe will collapse. com, using 1/2" copper pipe already on hand. A much better type of antenna then a simple quatre wave and that has more gain is the 1/2 wavelength vertical. Today Northside Plumbing Supply is still family owned and operated. The higher the "Q", the higher the efficiency, which means higher performance from that antenna. Very cheap, plus:. The antenna works most effectively when elevated at a reasonable height, but if no support is available it will also radiate (with limited efficiency) when stretched out on the ground. Do not over-tighten the clamps because the copper pipe will collapse. I cut three inch sections of close-fit copper tubing, and put small pieces of rosin core solder inside. I don't expect any miracles, in fact failure on the first few tries. Need to perform a plastic tubing repair for an mobile home, RV, manufactured home, or residential home? You've come to the right place! Qest/Qicktite fittings are designed to work great with plastic tubing, or any pipe that is Copper Tube Size. Drill a small hole in the middle of the lamp finial for the stainless whip. Our friends at Valnet in Independence, Kansas volunteered their temporary tower for use at Field Day this year. To connect the antenna to ground, simply connect the other end of your ground wire to coaxial grounding. Everything is designed to use 3/8 x 24 thread that has become a standard for antennas. and solder the copper wire to hold the braid in place. The copper tubing comes coiled in a box, and the material shown in the picture was excess tubing. A - Either one of the. They can be used in both horizontal and vertical applications. Instead of throwing something together, why not build something a bit more "deterministic" like a copper-pipe J antenna (improperly referred to as a J-pole, which is a variant of the J). Whether it’s a TV, radio, or cellular antenna, we have what you need for your home or commercial application. Aluminum wire is not expensive, but it is the least desirable wire for antenna use. PEX stands for cross-linked polyethylene. The Always on Generation: A Study of Tech Intimates is an annual initiative created to better understand emerging technology, network and communication needs by the savviest generation. , Business Customer. They can be used in both horizontal and vertical applications. (Adelaide South Australia). About 8% of these are stainless steel pipes, 1% are pipe fittings, and 1% are steel pipes. This pipe is easy to work with, stiff, and everyone can either solder the fittings or knows someone who can. Connect cable to transformer, tape and run down the 2" PVC pole. Written By: Scott Wolfington The following article is based on a HamUniverse. Then you should be able to use it as the grounding electrode for the antenna. Copper block from power distribution panel is used to terminate my radial farm. The billet mount provides easy and adjustable options for positioning your antenna for best reception and performance. N261-006-6MF-BL The N261-006-6MF-BL Augmented Cat6/6a Pre-Terminated Copper Trunk Assembly (M/F) makes installation a breeze and saves you time, space and money. 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). A friend of mine (KC0UYK) convinced me I should build this antenna and I'm certainly glad he talked me into it. stainless steel tapered whip. I decided to try and build one of the copper pile style slim jim 2 meter HAM radio antennas. We are a dealer for Midland, Uniden, Cobra, Firestik Antenna, Wilson Antenna, RoadPro and More. 5/16” Outer diameter copper tubing 1ft. Since our antenna (the 4 element quad) has a feedpoint impedance around 50 Ohms and our coax is 50 Ohms, that means we want a 1:1 ratio. Now build the next band, for eg. One of the most common designs is the dipole antenna, a copper wire antenna consisting of two equal legs. Does the particular metal used in antenna elements make any difference in element length or spacing, i. With your crystal radio you will be able to experiment with the circuit and the antenna to get the best reception. ANTENNA PARTS LIST: Keep in mind that this, and most HAM antennas, can be made with parts that you probably already have lying around your home. Copper pipe turned out to be pretty hard for me to work with, so I switched to 12 gauge copper wiring instead. #1 Copper Wire and Tubing Scrap Price $US / Lb USA, North America - #1 Copper Wire and Tubing Scrap Current, Previous Prices,Historical Price Charts,Price Calculator,News. Richardson, Texas Phil Salas - AD5X AD5X PVC Tubing 1" Copper Pipe Ground 1/2" PVC. Normally we braze. Requirement 5 Represent Individual Electronic Parts (“Components”). The ends of the tubing at the center of the antenna should be flattened with a hammer or in a vise. I use an mfj 929 tuner to tune it up. A pipe fastener is a device that mechanically joins or affixes two or more pipes together. Why build antennas out of copper and not aluminum or stainless steel. Objective Build a simple crystal radio receiver and experiment to improve your reception. The antenna mast sections are constructed from hard wall copper pipe, 1/2" in diameter. the parts i have now is 150" 1/2" copper water pipe. A wide variety of antenna copper options are available to you, such as bare, pancake coil copper pipe, and insulated. A nice start to the project and a great excuse to start my magnetic loop build. 25" pipe with enough friction to hold it in place. Testing was another matter I don't know if we had bad cable, a bad analyzer. Specifically the low takeoff angle of the Slim-Jim mixed with some of the durability characteristics of the larger cactus copper J-Pole. I used 2 1/2" muffler clamps and attached the antenna to a 10 foot push-up. One of the most common designs is the dipole antenna, a copper wire antenna consisting of two equal legs. electrical circuit for the antenna is shown at Fig. 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). This tunable magnetic loop antenna is my contribution to the well established art of amateur loop making. 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. Cheap receiver antenna, Buy Quality 2. The solid copper wire was chosen due to its stiffness and rigidity when the Slim JIM is mounted. Enter the desired frequency. We beat everyone's pricing on radiant and potable PEX tubing. The power inserter has reverse polarity and short circuit protection using a resettable solid-state fuse. At the end near the connector, a piece of RG59 coax center conductor is slipped inside a piece of brass tubing which telescopes into the 1/4 inch copper tube. Changing the diameter changes the resonant frequency only a little. The half tube is made with 6-inch PVC pipe cut 12-inches long. Galaxy CB radios have talk back, roger beep, frequency counters, large SWR/PWR meters, back lit face plates, and more. My meter is showing lowest SWR at 190mhz. Although this design has been around for a long time, it is only gaining popularity now due to the recent improvement in high power antenna tuners. No problems with impedance as long as it is cut for a 1-1 SWR. Our friends at Valnet in Independence, Kansas volunteered their temporary tower for use at Field Day this year. The Feed line should be centered between the clamps. One of the most common designs is the dipole antenna, a copper wire antenna consisting of two equal legs. Simple CB Base Station Antenna: This is a simple base station CB antenna You can make in 30 minutes out of a bit of PVC pipe and fittings, some wire and a SO239 coax connector and a piece of coax to connect it to your radio. And painted, with one coat of primer and two coats of color. Magnetic loops. The top supplying countries or regions are China, Taiwan, China, and Poland, which supply 99%, 1%, and 1% of wifi copper antenna respectively. if you are making an antenna with wire elements, thicker wire = thicker elements. This will allow the 3/4" pipe to slide into a 1. Do not over-tighten the clamps because the copper pipe will collapse. We already published in the 9 J-pole-antenna-projects some samples of copper J-Pole antennas. The tin note had that really nice CB smell, but was much more lightly cased than in other offerings. I intend to use my CB transceiver in my house only. Copper, inter-digital filters have also been tested. This antenna has a 3/8 in. Also perfect for Ham radio use, this antenna is a total of 47 in. The latter is formed around the copper tubing element and held tight by a brass screw and nut. Normally we braze. However such devices cost several hundred pounds, even on the surplus market. We are a dealer for Midland, Uniden, Cobra, Firestik Antenna, Wilson Antenna, RoadPro and More. takes 35 psi to raise the tower sections. Order online anytime,or call 989-875-4902 Monday - Friday 8:00 a. A piece of copper pipe that goes 2' down and 5' over could be a pretty good ground, but that would depend on the soil conditions -- moisture and chemistry. copper pipe.