Copper Tubing Cb Antenna

Get all you need today from RVpartscountry. Can I make a vertical colinear antenna from bare copper plumbing tubing? The inner conductor is going to be 0. You can leave the CB in the plastic bucket for easy portability or remove it and bury the CB directly into the ground. Copper block from power distribution panel is used to terminate my radial farm. 75 inches, which should be very close to 220mhz for resonance. Don't use excessive solder. If you are unsure of part numbers, all instruction manuals & parts lists for Maco® antennas are available here. so we could see the actual antenna inside (scroll down to see pictures). stainless steel tapered whip. Because of its esthetic appeal, and inherent and variable value, copper is now included in many precious metals investment portfolios. Changing the diameter changes the resonant frequency only a little. 5" diameter (nominal, exact is 0. 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. The inner diameter of this pipe is 0. This will hold the ends in place. 5:1 No Tuner needed. The J-Pole does not need a ground plane to operate. 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. On the bottom of lamp tubing below the antenna. 8-element collinear omni antenna The 24dBi Conifer dish has been modified by myself, with a custom-made copper and brass dipole. They can be used in both horizontal and vertical applications. My Antenna Information: I have built a 2m moxon using 3/4in. 1 - Screenshot of AA5TB's loop calculator*, showing a 6. We carry fiberglass and stainless steel parts for CB antennas ranging from four inches to four feet long. Because of its esthetic appeal, and inherent and variable value, copper is now included in many precious metals investment portfolios. 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. I can tell you honestly that this was not so fervently discussed on the radio in earlier decades. This is easily done with 6" carriage bolts. Why Copper. The calculation included on the diagram below is for building the antenna using copper tubing, you should use MMANA-GAL or other antenna simulation software to come up with new dimension for other materials (aluminium, wire, etc). So first, I needed to find two points around the circumference of each tube, to get the slots reasonably lined up across from each other. The copper tubing comes coiled in a box, and the material shown in the picture was excess tubing. I used the following parts to assemble the antenna. 5:1 or better over the entire band. Many are variations on the tried and true 1/2 wave design with the 1/4 wave stub at the bottom. As it turns out, the tubing is too strong to clamp without cutting a relief slot in the outer tubing. The 6061-T6 alloy tubular bus is used where high strength and lower conductivity are required. This sketch shows a semi-exploded view of the antenna. This tunable magnetic loop antenna is my contribution to the well established art of amateur loop making. The out-of-the-box shape of the tubing is an important part of using it in this design. FOR SALE - Lake Tahoe - NEW in Package! "Road Pro" Mini Magnet Mount CB Antenna Kit 24" Center Loaded Copper Coil ~ Stainless Steel Antenna Pre-Wired Super-Strong Magnet Base. A long time ago, I purchased a Solarcon Antron 99 antenna for my propagation beacon. on all models except the 2M/440 and Tri-Band where the 440 MHZ SWR is approximately 1. All you need is two rabbit ear antennas from Radio Shack, two CATV baluns, four feet of 3/4" CPVC pipe with one tee, and a bit of time. Thus it is about 3/4 wave tall at the operating frequency. I personally used a 6 AWG solid copper wire and clamped it to my house ground wire as seen in the picture below. Many also feel it is too good for the price. 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. Building a Quadrifilar Helix Antenna for Undergraduate Researchers Introduction There are many different antenna designs for capturing images from weather and other low-level, non-geosyncronous satellites. Let's consider using l = 2 meters of hollow copper tubing for the magnetic loop antenna with a diameter of d = 10 mm. The MFJ-1890 is a lightweight aluminum antenna designed to operate in the 10 meter band and we had hoped that with a little messing around we could get it to tune to the 11 meter cb band. 1/2 wave antenna principle. Can I make a vertical colinear antenna from bare copper plumbing tubing? The inner conductor is going to be 0. If the conduit is metalic, and at least size 3/4", and at least 8 ft. 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. The antenna may be built as a MonoBander, DuoBander, TriBander, QuadBander or whatever with great success. Copper and brass is used exclusively in this antenna. if you are making an antenna with wire elements, thicker wire = thicker elements. Dissadvantage: needs a matching device at the base to match it to the coax, it cannot be attached directly. Product Features. In the copper pipe variation, the Slim Jim uses more materials for no performance benefit. x 24 thread mounting. If you are looking for a specific outside diameter, please go to our aluminum round tubing page. Completing the Other Joints: If you feel like you're getting the hang of the soldering business, you may discover that you can prepare each copper pipe end and 90 degree elbow, and then solder both sides of the elbow at once. Rigid Tubing. I get mine from Scott's plumbing supplies. The tubing already is formed into rings, and it is relatively easy to adjust the radius. 5” diameter (nominal, exact is 0. The conical monopole antenna is a base-fed vertical antenna that has an omni-directional pattern in azimuth but with an elevation (vertical plane) pattern that keeps most of the energy down close to the horizon, where it belongs for long-distance transmission. Use steel wool to clean the copper and solder the antenna together as you would with normal copper tubing. Attach the hose clamps about 3 inches up from horizontal 2 1/4 elbow and "T". Many builders use copper pipe for the loop main element. Most CB antennas are vertical. 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). Because of its esthetic appeal, and inherent and variable value, copper is now included in many precious metals investment portfolios. Also see "Cb Radio & Scanner Connectors" in the left menu for Cb antenna spring, cb antenna quick disconnect and springs, PL259 connectors, other adaptors and accessories for Cb antennas. My J-Pole antennas are constructed out of Type M solid copper pipe for the ultimate in durability and weather resistance. The DX Engineering OMNI-TILT™ Vertical Antenna Tilt Base is a new design incorporating features that make this Tilt Base a 'must have' for all types of vertical antennas. 20 METER GROUNDPLANE Most hams are familiar with the quarter wavelength ground-plane antenna design. 5” diameter (nominal, exact is 0. Loading Unsubscribe from BOOTYMONSTER? sigma 4 - vector 4000 home-brew CB antenna - Duration: 1:51. 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 antenna with the adjustable plate for tuning can be built from type M 1/2in copper tubing for around $13 and the coax pig tail would cost around $12. 25" outside diameter (exact) pipe and the outside shield is going to be 0. Also, make a hole for a sheet metal screw to secure the tuning capacitor. Low Range Off Road is your source for CB Radio's, antenna's, mounts and cables. They typically use between 14-16 gauge copper wire for "both" the antenna and matching coil thats. in vice & 6mm hole drilled in each end 6. A number of manufacturers, including Uponor, Viega, Nibco and Zurn, have already been sued over their PEX piping products. 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. A wide variety of antenna pipes options are available to you, such as astm, bs, and jis. The gamma match is 1/4 inch copper tubing. Type-M, also known as Red Copper is primarily used in the plumbing industry for supplying drinking water in homes and businesses. takes 35 psi to raise the tower sections. Copper Electronics, Inc. BES provide a next day delivery on a full range of pipe clips and brackets in brass, copper, malleable iron, stainless steel,plastic and steel. , which is another reason they are more efficient, have higher. Else known as Small Transmitting Loop or STL, this isn't a traditional "electric" antenna, because the "near field" is almost "magnetic". has been offering the best prices on the highest quality CB and Ham radios and equipment for over 30 years. Each radial is evenly spaced (90 degrees apart from each other) around the vertical element. I can tell you honestly that this was not so fervently discussed on the radio in earlier decades. A Copper Pipe Jpole for Two Meters. The antenna will work successfully supported by trees, masts, the tops of vehicles or any convenient object or structure. We have devices with improved specs for the professionals. Free shipping over 300. Copper flashing ties it to an entrance bulkhead under the rain hood. The antenna can be positioned at a right-angle for base scanners or vertically for portable scanners. A coaxial cable runs through one side of each open-wire-line to feed each dipole. Based on their construction the various types of evaporators are: 1) Bare tube evaporators, 2) Plate type of evaporators, 3) Finned evaporators and 4) Shell and Tube type of evaporators. The 70cm radiator is changed to coaxial antenna design. 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). This photo shows the lower mast section, the coil, and the power drive assembly for the antenna. The pipe then connects to a piece of braid, as short as possible, to an eight foot copper ground rod outside. You should put the antenna as high into the air as you can - and try to get it away from any buildings. 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. Please check back often if you do not see what you want, we are adding a lot more product to this section. As it turns out, the tubing is too strong to clamp without cutting a relief slot in the outer tubing. Do not over-tighten the clamps because the copper pipe will collapse. Next attach screws to the hose clamps and SO-239. With this Browning antenna you can enjoy 10000W of power to ensure a wide range of reception. The half tube is made with 6-inch PVC pipe cut 12-inches long. I got both, the ham and cb running in the house now. Also, make a hole for a sheet metal screw to secure the tuning capacitor. When mobile, I installed a Tram 1185 mag-mount antenna (which also works well, especially with the new FTM-100DR!). You'll be able to put more power through my 5/8th wave CB antennas without wasting as much in heat. Ferguson is the #1 US plumbing supply company and a top distributor of HVAC parts, waterworks supplies, and MRO products. Copper house wire prices have skyrocketed in the recent months. No problems with impedance as long as it is cut for a 1-1 SWR. thick perspex or. 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. We already published in the 9 J-pole-antenna-projects some samples of copper J-Pole antennas. Telescoping Pipe and Tube Please refer to Pipe, Tube and Conduit for more information. A copper pipe tends to form a bluish green patina during long periods of use, especially when it is exposed to moist air. We are a dealer for Midland, Uniden, Cobra, Firestik Antenna, Wilson Antenna, RoadPro and More. 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. Very cheap, plus:. Changing the diameter changes the resonant frequency only a little. I live in a townhouse and have “Attic Antennas” exclusively so I need a good multi-band antenna with low SWR. EMCO Corporation is one of Canada's largest distributors of products for the construction industry. You should put the antenna as high into the air as you can - and try to get it away from any buildings. The J-Pole antenna performs well yet requires no traditional radials hence it is easy to transport and takes up very little room. Copper wire mesh and screens are available from T W P in a variety of weaves along with a comprehensive selection of mesh counts. In the copper pipe variation, the Slim Jim uses more materials for no performance benefit. Low Range Off Road is your source for CB Radio's, antenna's, mounts and cables. Howdy folks. The antenna mast sections are constructed from hard wall copper pipe, 1/2" in diameter. RAIN OR SHINE! WE WILL SELL INSIDE IF WE GET ANY RAIN. It is driven six feet deep, and connects to a buried #8 buss wire running around the outside of the building. com - Buy metal and plastic fabrication materials online in small quantities - cut to size. Aluminum/copper tubing construction: You will need to check the fit of the tubing with the T connector and the caps while you are at the store. Normally we braze. The Horizontal Loop, also known as the Loop Skywire Antenna, is an old but very effective design. In the picture above I used hose clamps to clamp the coax pig tail directly to 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. Use copper pipe and tubing from Grainger for plumbing, refrigeration and HVAC jobs. I'm planning to use 1/2" copper pipe. MFJ-1890 10 Meter Moxon Antenna (Tested on 10 meters & 11 meters/CB Band) MFJ MOXON Quick Look From CBRADIOMAGAZINE. Aluminum wire is not expensive, but it is the least desirable wire for antenna use. How to Make a Homemade TV Antenna (Explained With Pictures) PVC pipe or stick to hoist the antenna (optional) pattern the copper wires as shown above. coil and 1/2 in copper pipe are overkill for CB no need to go that big unless you are running megawatts. 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. 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. A small transmitting loop, small tuned loop or magnetic antenna is defined as a loop antenna of less than one-tenth to one-quarter of a wavelength in circumference. The elements are phased with #6 copper wire and held in place by compression couplings. • Erect antenna on side of house opposite power line. ~ 30% off This is a 10 foot roll of our 1. 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. Here was an antenna mount for a car window, a J-shaped piece of metal. Pictures of the copper tubing version. It should be at least 30' long and made of multi-strand copper antenna wire supported a minimum of 15 feet off the ground. Radio Shack sells bare stranded copper wire made specially for antennas, but it’s a bit pricey. FireStik FL3-B Three Foot FireFly Antenna With Tuneable Tip. "How to Reroute Bathroom Sink Plumbing. Wifi copper antenna products are most popular in North America, Domestic Market, and Southern Europe. has been offering the best prices on the highest quality CB and Ham radios and equipment for over 30 years. 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. A long-wire antenna receives best from the directions perpendicular to its sides. 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. Choose from our selection of square tubing connectors, including press-fit framing and fittings, weld-together framing and fittings, and more. Unfortunately, commercial cir-cular waveguide is rare and unlikely to be found surplus. Copper wire mesh and screens are available from T W P in a variety of weaves along with a comprehensive selection of mesh counts. Since it's easy to mix the elements up after they have been cut to length, be sure to label each element, D1, Reflector, Driven Element, etc. This post relates to the design and build of a 160/80/40 Meter magnetic loop antenna. Enjoy the photos. On this page I will present a description of my SWL loop. Cooper Electric provides exceptional electrical products and services for industrial contractors, commercial buildings, educational facilities, and more. The cable is protected by an outer insulating jacket. 1- 1 1/2″ PVC Pipe. Traditionally there has been a large assortment to choose from with many different manufacturers making the claim that their antenna was the best. Spotted in the MAKE Flickr Pool, this homemade fractal antenna for digital television signals by Roy Jacobsen of Fargo, ND. Type-M, also known as Red Copper is primarily used in the plumbing industry for supplying drinking water in homes and businesses. FireStik has some of the most reliable fiberglass CB antennas out there and a great example is the FL3-B, a three-foot Firefly antenna with tunable tip. EMCO Corporation is one of Canada's largest distributors of products for the construction industry. Bend the antenna from one piece of wire. All termination, bundling and testing is done at the factory, so almost anyone can do the installation in your data center in less time. on all models except the 2M/440 and Tri-Band where the 440 MHZ SWR is approximately 1. The inner diameter of this pipe is 0. Zoro’s website is easy to navigate and to compare with other manufacturers. 11 METER CB ANTENNAS. First, I must say that setting up a base radio (11 meter) and accompanying antenna is a new hobby for me. Bending the copper tubing isn't that easy, particularly if one doesn't own the right tools (like me). A major consideration was to build it so it required no tuning of the feed point. 35-37, "An Antenna Idea for Antenna Restricted Communities" - WV6N Fig. To order type the total number of feet desired into the quanity box below. Featuring Molded Side Mount. 8" down from end, brass tubes slightly smaller than 900 filter, again slipping inside each other for tuning, 1. A few ground rods are made of copper tubing. 5" diameter (nominal, exact is 0. 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. I intend to use my CB transceiver in my house only. the SIMPLE 2m/440 Copper pipe "J" by Dale “Kuby” Kubichek, N6JSX 03/2001&2008 Can you use a pipe cutter or a hack saw, can you solder – then here is how to build a SIMPLE ”J” antenna that will more than double your 2 meter (and even 440) performance! The "J" antenna goes back many years, long before I became a ham. This antenna is EXTREMELY easy to assemble, requires no tuning or adjustments. has been offering the best prices on the highest quality CB and Ham radios and equipment for over 30 years. As we said, some CB antennas have a tuning tip, a small screw at the top of the antenna, like the Firestik. If you have aluminium tube or an old CB antenna this would be better still. home brew copper tubing antenna coil BOOTYMONSTER. Then cut the two short PVC center support arms. The total length of the dipole is 25. • Erect antenna on side of house opposite power line. To build the 10 element log periodic air band antenna, construct two identical booms with element positions and lengths as given in the above diagram. 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. Performance. Copper house wire prices have skyrocketed in the recent months. Build an antenna that'll last with rigid tubing from DX Engineering! Our aluminum tubing is made from your choice of 6063-T832 drawn aluminum or 6061-T8 heavy-wall drawn aluminum—both highly resistant to corrosion and stress cracking. This calculator enables you to test the design of an octagonal loop antenna and to answer "what if" questions until you arrive at a design that meets your needs without a lot of experience in electronics. Given the title of this article - "Choosing the Best CB Antenna" perhaps we should have put this one at the top. 3 times 5 mm alu or copper tube of 22 cm. 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. He commented to me that, even if a loop is only 10% efficient, that is only down 10 dB - about 1 1/2 S units. Pictures of the copper tubing version. I have tried Brasso and all the other on-the-shelf cleaners. I fabricated 2 cross braces out of PVC pipe and T's. Given the title of this article - "Choosing the Best CB Antenna" perhaps we should have put this one at the top. x 24 thread mount just be sure to buy a heavy-duty one to keep this antenna firmly seated. As we said, some CB antennas have a tuning tip, a small screw at the top of the antenna, like the Firestik. 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. In this review, he compares the MLA to the Wellbrook ALA1530-LF and a 30 foot square ground loop antenna. If the water supply lines are copper, you can attach PEX tubes to the copper lines using special copper-to-PEX connectors. An Uncommon Antenna: I have been avidly reading the occasional magazine article describing small loop antennas. I opted for the first for my experiments and finally choose the solid copper wire for the final construction project. I tried making variable capacitors from sliding copper clad printed circuit board, and as a trombone arrangement using plastic sleeved copper water pipe (as shown on various loop. The calculation included on the diagram below is for building the antenna using copper tubing, you should use MMANA-GAL or other antenna simulation software to come up with new dimension for other materials (aluminium, wire, etc). Let's consider using l = 2 meters of hollow copper tubing for the magnetic loop antenna with a diameter of d = 10 mm. (Note: a 6″ Dia by 72″cardboard tube in used for shipping the main antenna. 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). With a windscreen mounting bracket it can be easily mounted on the windscreen and also includes a magnetic antenna which can sit on the roof of the vehicle for optimal reception. The Cresline Team is comprised of the industry's most experienced professionals who are the backbone of our success. With this Browning antenna you can enjoy 10000W of power to ensure a wide range of reception. 42 per foot. The conical monopole antenna is a base-fed vertical antenna that has an omni-directional pattern in azimuth but with an elevation (vertical plane) pattern that keeps most of the energy down close to the horizon, where it belongs for long-distance transmission. he said thats why copper is used for ground rods and lightning rods and ground wires. home brew copper tubing antenna coil BOOTYMONSTER. Please check back often if you do not see what you want, we are adding a lot more product to this section. antennas use vacuum variable capacitors in order to meet this set of design parameters. 8-element collinear omni antenna The 24dBi Conifer dish has been modified by myself, with a custom-made copper and brass dipole. pipe is inexpensive and worth purchasing at a home improvement store Copper pipe can also be cut with a fine-tooth hack saw. Tubing for Maco and Gizmotchy antennas available by part number! Find tubing for other antennas, homebrews, or other projects. I settled on a 2 meter vertical dipole. 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. (Don’t handle the antenna while. 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. Our coil tubing comes in different sizes to provide you with what you need to fix all your water needs today. This calculator is designed to give the vertical length (height) of a particular antenna, for the frequency and wavelength chosen. Home > Antennas Direct Blog > How to Ground an Outdoor Antenna. Copper Cactus Dual-Band Super J-Pole Antenna Project. Reviving a classic restricted space vertical antenna design from years ago! Editors note: This antenna should be considered experimental. What is the best way to make a scanner antenna for indoor use possibly outdoor. Type-M, also known as Red Copper is primarily used in the plumbing industry for supplying drinking water in homes and businesses. Copper tube is preferred by some because it is durable and flexible making it easy to install. I am working on a 1/4 wave Copper water pipe Antenna there is a few stuff i need to go over or any tips you guys can give me before i start cutting stuff up. The ¼ Wave Droopy Ground Plane 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. when drilling into aluminium tubing, get a wooden dowel that fits snugly within the aluminium tube (to stop the tube crimping) mount the antenna as high as possible the small piece of copper sheet is cut into 2 straps that wrap tightly around the tubes (as indicated). Changing the diameter changes the resonant frequency only a little. My meter is showing lowest SWR at 190mhz. Connect cable to transformer, tape and run down the 2" PVC pole. This is the most attractive splice, and pulls through most insulators. The magnetic loop is an unusual antenna, as with all smaller than perfect antennas, it has some drawbacks and some benefits. 4g receiver antenna directly from China orange rx Suppliers: 3PCS 150mm 15CM 2. OUTSIDE IF ITS NOT RAINING. When the fitting and tube are assembled and heated to correct temperature, solder applied to the mouth of the fitting becomes molten. LFA Yagi Antenna in Copper. The number of decimal places in the calculated value can also be specified. Shop for 2 Meter Antennas here. The pictures are in my Flickr set "Amateur Radio Copper Pipe J-Pole Antenna and Base". 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. While all the designs performed well, each had shortcomings. VHF Square and Circular Loops are analyzed using 4nec2 to find optimum sizes. com FREE DELIVERY possible on eligible purchases. Made with a stainless steel whip and a stainless steel shaft this Browning BR-28 High-Performance Broad Band 63 CB Antenna includes a standard thread CB mount to allow for easy mounting. The calculation included on the diagram below is for building the antenna using copper tubing, you should use MMANA-GAL or other antenna simulation software to come up with new dimension for other materials (aluminium, wire, etc). A high-definition digital antenna receives free transmissions from towers maintained by local TV networks. Locke Supply Co. In this review, he compares the MLA to the Wellbrook ALA1530-LF and a 30 foot square ground loop antenna. Antennas & Transmission Lines The transmitter that generates the RF 1 power to drive the antenna is usually located at some distance from the antenna terminals. 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. diameter magnetic loop on 3/8 inches soft copper tube. Whatever the type of antenna there are many points to watch, things to think about, and items of good practice that ensure the best performance is obtained from the antenna. I built mine from 3/4″ copper pipe. COPPER STRAP, 1. With this Browning antenna you can enjoy 10000W of power to ensure a wide range of reception. Those performance comparisons mean that the various antennas are mounted in the same place or same height. 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. I built mine from 10 feet (3 meters) of 1/2 inch (12. Ferguson is the #1 US plumbing supply company and a top distributor of HVAC parts, waterworks supplies, and MRO products. Based on their construction the various types of evaporators are: 1) Bare tube evaporators, 2) Plate type of evaporators, 3) Finned evaporators and 4) Shell and Tube type of evaporators. Thoughts of the Semi-Weir'd antenna faded as I scanned the CB antenna accessories. Q - What kind of pipe should I use for my antenna, is fence post strong enough to hold my antenna up. x 24 thread mount just be sure to buy a heavy-duty one to keep this antenna firmly seated. Many are variations on the tried and true 1/2 wave design with the 1/4 wave stub at the bottom. Made contacts all over Europe all the way to Japan and Argentina from New Albany, MS. That's what I do. Tube Cap C - Wrot, 617 The NIBCO® lead-free* wrot copper solder pressure tube cap is used in residential and commercial systems such as potable water, air conditioning and refrigeration. Check out our MEGA line of RV plumbing fittings. 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. The magnetic loop is an unusual antenna, as with all smaller than perfect antennas, it has some drawbacks and some benefits. Here was a telescoping scanner antenna with a BNC connector built in. Construction Cut the copper tubing to the lengths indi- cated in Table 1. Random Wire Antenna. The billet mount provides easy and adjustable options for positioning your antenna for best reception and performance. If the water supply lines are copper, you can attach PEX tubes to the copper lines using special copper-to-PEX connectors. Wilson CB antennas offer silver-plated copper wire for superior power and the broadband antenna allows for easy tuning. In particular, 3/ 4-inch. 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. I proceeded to make a very heavy dipole from copper pipe, akin to the type used for J-poles. A VHF Marine Antenna is an important equipment for every boat owner. On the bottom of lamp tubing below the antenna. Ferguson is the #1 US plumbing supply company and a top distributor of HVAC parts, waterworks supplies, and MRO products. The DX Engineering OMNI-TILT™ Vertical Antenna Tilt Base is a new design incorporating features that make this Tilt Base a 'must have' for all types of vertical antennas. VHF Square and Circular Loops are analyzed using 4nec2 to find optimum sizes. Wilson CB antennas offer silver-plated copper wire for superior power and the broadband antenna allows for easy tuning. The height thingy is a biggy. Slim Jim antennas have no performance advantage over the conventional J-pole antenna. Mobile CB Antennas Mobile Antenna Mounts Mobile CB Antenna Accessories Base CB Antennas Towers - Rotors - Mast Pipe - Push Up Poles. This guarantee is good for 15 days from the date of purchase at the original purchase point only, and with dated sales receipt. I proceeded to make a very heavy dipole from copper pipe, akin to the type used for J-poles. • Cut the copper pipe to the exact dimensions with a good pipe cutter (a metal saw may deform the thin pipe). 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. I am working on a 1/4 wave Copper water pipe Antenna there is a few stuff i need to go over or any tips you guys can give me before i start cutting stuff up. Copper tubing is used instead of copper wire because it has a much lower resistance. There is a substantial weight difference between the two antennas due to their respective lengths and the added pipe mass. Many hams' first choice of antenna is a half-wave dipole. A brass plug with a 3/8" x 24 threaded hole was pressed into the end of the copper pipe and hard-soldered into place. Here is a view of the inside of the coil. How to Build Antennas. Please note that UPS applies an additional $10. The fact-checkers, whose work is more and more important for those who prefer facts over lies, police the line between fact and falsehood on a day-to-day basis, and do a great job. Today, my small contribution is to pass along a very good overview that reflects on one of Trump’s favorite overarching falsehoods. Namely: Trump describes an America in which everything was going down the tubes under  Obama, which is why we needed Trump to make America great again. And he claims that this project has come to fruition, with America setting records for prosperity under his leadership and guidance. “Obama bad; Trump good” is pretty much his analysis in all areas and measurement of U.S. activity, especially economically. Even if this were true, it would reflect poorly on Trump’s character, but it has the added problem of being false, a big lie made up of many small ones. Personally, I don’t assume that all economic measurements directly reflect the leadership of whoever occupies the Oval Office, nor am I smart enough to figure out what causes what in the economy. But the idea that presidents get the credit or the blame for the economy during their tenure is a political fact of life. Trump, in his adorable, immodest mendacity, not only claims credit for everything good that happens in the economy, but tells people, literally and specifically, that they have to vote for him even if they hate him, because without his guidance, their 401(k) accounts “will go down the tubes.” That would be offensive even if it were true, but it is utterly false. The stock market has been on a 10-year run of steady gains that began in 2009, the year Barack Obama was inaugurated. But why would anyone care about that? It’s only an unarguable, stubborn fact. Still, speaking of facts, there are so many measurements and indicators of how the economy is doing, that those not committed to an honest investigation can find evidence for whatever they want to believe. Trump and his most committed followers want to believe that everything was terrible under Barack Obama and great under Trump. That’s baloney. Anyone who believes that believes something false. And a series of charts and graphs published Monday in the Washington Post and explained by Economics Correspondent Heather Long provides the data that tells the tale. The details are complicated. Click through to the link above and you’ll learn much. But the overview is pretty simply this: The U.S. economy had a major meltdown in the last year of the George W. Bush presidency. Again, I’m not smart enough to know how much of this was Bush’s “fault.” But he had been in office for six years when the trouble started. So, if it’s ever reasonable to hold a president accountable for the performance of the economy, the timeline is bad for Bush. GDP growth went negative. Job growth fell sharply and then went negative. Median household income shrank. The Dow Jones Industrial Average dropped by more than 5,000 points! U.S. manufacturing output plunged, as did average home values, as did average hourly wages, as did measures of consumer confidence and most other indicators of economic health. (Backup for that is contained in the Post piece I linked to above.) Barack Obama inherited that mess of falling numbers, which continued during his first year in office, 2009, as he put in place policies designed to turn it around. By 2010, Obama’s second year, pretty much all of the negative numbers had turned positive. By the time Obama was up for reelection in 2012, all of them were headed in the right direction, which is certainly among the reasons voters gave him a second term by a solid (not landslide) margin. Basically, all of those good numbers continued throughout the second Obama term. The U.S. GDP, probably the single best measure of how the economy is doing, grew by 2.9 percent in 2015, which was Obama’s seventh year in office and was the best GDP growth number since before the crash of the late Bush years. GDP growth slowed to 1.6 percent in 2016, which may have been among the indicators that supported Trump’s campaign-year argument that everything was going to hell and only he could fix it. During the first year of Trump, GDP growth grew to 2.4 percent, which is decent but not great and anyway, a reasonable person would acknowledge that — to the degree that economic performance is to the credit or blame of the president — the performance in the first year of a new president is a mixture of the old and new policies. In Trump’s second year, 2018, the GDP grew 2.9 percent, equaling Obama’s best year, and so far in 2019, the growth rate has fallen to 2.1 percent, a mediocre number and a decline for which Trump presumably accepts no responsibility and blames either Nancy Pelosi, Ilhan Omar or, if he can swing it, Barack Obama. I suppose it’s natural for a president to want to take credit for everything good that happens on his (or someday her) watch, but not the blame for anything bad. Trump is more blatant about this than most. If we judge by his bad but remarkably steady approval ratings (today, according to the average maintained by 538.com, it’s 41.9 approval/ 53.7 disapproval) the pretty-good economy is not winning him new supporters, nor is his constant exaggeration of his accomplishments costing him many old ones). I already offered it above, but the full Washington Post workup of these numbers, and commentary/explanation by economics correspondent Heather Long, are here. On a related matter, if you care about what used to be called fiscal conservatism, which is the belief that federal debt and deficit matter, here’s a New York Times analysis, based on Congressional Budget Office data, suggesting that the annual budget deficit (that’s the amount the government borrows every year reflecting that amount by which federal spending exceeds revenues) which fell steadily during the Obama years, from a peak of $1.4 trillion at the beginning of the Obama administration, to $585 billion in 2016 (Obama’s last year in office), will be back up to $960 billion this fiscal year, and back over $1 trillion in 2020. (Here’s the New York Times piece detailing those numbers.) Trump is currently floating various tax cuts for the rich and the poor that will presumably worsen those projections, if passed. As the Times piece reported: