How to ground a mobile antenna

1- Strip back 1/8 inch insulation on wire and solder to center of SO239. Make sure solder joint is shiny. If it is dull, reheat it till thoroughly melted. 2- Solder electrical connector to end of second wire. 3- Drill hole in Cap to mount SO239 flush. Then drill mount holes for mounting screws.Grounding: From the ground terminal on your radio (next to the antenna terminal) run a wire to either a copper cold-water pipe (PVC pipe won't work) or a copper ground rod driven into the ground. Some safety notes: 1. Keep your antenna far away from power lines! If you, your antenna or your ladder touches a power line, you could be KILLED. 2.1 day ago · LOG stands for Loop on Ground, a version of the traditional loop antenna on terra firma. The loop of wire can vary in circumference from about 20 to 150 feet and can be a very space-efficient ground-mounted antenna for reception on the low bands. The shape should be as close to a diamond or square as possible. What is a NVIS antenna? • NVIS is an acronym for Near Vertical Incidence Skywave. • It is an antenna has quite a history with military use. ... almost any where on the ground that is level. • The NVIS allows you to make reliable contacts from 30 to 400 miles away. • The NVIS antenna, due to its proximity to the ground, reception is ...Drill 1⁄2 inch (1.3 cm) holes using a good drill bit, and never drill close to the end of the pipe. About 2 inches (5.1 cm) from the end gives you a good spacing for the insulators. For the feed point, use yet another piece of PVC pipe, drilling a hole through the center to provide for a strain relief for the feedline.AH, technically, the antenna is not grounded. The GROUND on an antenna is what it uses to form the wavefront. The ground for an antenna on a vehicle it typically connected to the vehicle body. Since it has rubber wheels, it can’t possibly be connected to ground. Many CB antennas are magnetically secured to the roof of a car. Re: How to Make a Scanner antenna. « Reply #1 on: August 29, 2007, 06:09:34 AM ». The main reason to use an outdoor antenna is a better Signal/Noise ratio; you lose signal attenuation by roof and walls of your home and are farther away from the in-house noise sources. You can gain on range by placing the antenna higher (don't forget lightning ...A monopole antenna is one half of a dipole antenna, almost always mounted above some sort of ground plane. The case of a monopole antenna of length L mounted above an infinite ground plane is shown in Figure 1(a).. Figure 1. Monopole above a PEC (a), and the equivalent source in free space (b). Using image theory, the fields above the ground plane can be found by using the equivalent source ...This is the only article you should be reading and following in regards to the antenna mount grounding. Get rid of the metal plate and get those screws cutting through the paint. Bin the ground strap you've installed. Bond across the hinges of the trunk to the main body. PART - 1 : The EFHW antenna as a radiating and receiving element is a decent multi-band antenna with good efficiency on all bands, provided it is driven at its feed-point using a well configured and well-matched driving source. However, it has its idiosyncrasies. The radiation pattern of this antenna on most bands produces multiple lobes.Electromagnetic Radiation Explained. One of the least understood phenomena in electrical engineering is the idea that electric and magnetic fields appear to leave a radio transmitting antenna to form what we know as radio waves. Electronics Technician Volume 7—Antennas and Wave. Propagation NAVEDTRA 14092 Large 3.11MB download.Answer (1 of 3): It's really not possible or practical without drilling a ground hole thru the paint of your vehicle. So this is the exact reason why mag mount antennas function poorly. A base coil loaded antenna properly grounded and located near the center of a vehicle will far out perform a fu...insert the balun. assemble the aluminum arms and the whip antennas. for each side -. 2 aluminum arms -> coil -> whip antenna. put the antenna into the rotating arm kits. connect the coaxial cable to the balun (coaxial cable does not come with the kit); check the vswr/ smith chart from a vna/antenna analyser.you are all set! let's do some DXs!.An simple and easy to make antenna width a good band width. In this case for 10 and 11m. 1/4 wave ground plane. Design freq: 27,555 MHz : Gain: 3,99 dBi : F/B: N.A. Beam width: ... It was the most simple antenna (1/4 vertical - ground plane) for me to carry along with me. ...• Of all simple vertical antennas over ground, the 5/8 wave radiator has the lowest angle of radiation, however the base of the 5/8 antenna presents a relatively low impedance, not the high impedance offered by the ¼ wave stub. This suggestion is a flop. • The full-wave antenna is voltage fed, so it readilyJul 28, 2021 · The first step includes the positioning of the probe. So you need to position the first probe at the point where it is touching the CB antenna mounting space. Fix the probe flatly against the mounting surface of the CB antenna. The next step involves the positioning of the second probe with your car battery. When you get the mobile (base) that you were thinking of, let us know what kind of simplex range you are getting to an on-foot or bicycle 4 watt portable or another vehicle mounted mobile with a center loaded 5.4 db gain mobile antenna. I'd imagine about 3 miles to a portable and perhaps 9 to 11 for a mobile (25 watt with a 52 watt ERP).When you get the mobile (base) that you were thinking of, let us know what kind of simplex range you are getting to an on-foot or bicycle 4 watt portable or another vehicle mounted mobile with a center loaded 5.4 db gain mobile antenna. I'd imagine about 3 miles to a portable and perhaps 9 to 11 for a mobile (25 watt with a 52 watt ERP).Coax has two conductors, on inside another. The shield, is on the. outside and is considered a good ground for the antenna. It can. provide a better ground than a simple wire can. I'd recommend that you ground the radio by using the bracket it's. supplied with, to the frame on the vehicle inside the passenger.These results show clearly how the antenna efficiency drops for small ground planes at frequencies below 1GHz. These results were obtained for a 3G/4G chip antenna operating at frequencies 791-960MHz, 1710-2170MHz, 2300-1400MHz and 2500-2969MHz. Generally, the ground plane would need to be 100mm or more for a device using the frequencies below ... anime decals The amount/size of the "ground-plane" required for the optimal performance of a monopole antenna is determined by the frequency you are transmitting/receiving at. In this case, it's a multi-band antenna the customer is using (it can be used from 700 MHz - 2700 MHz) so the ground plane required could be anywhere from 4-64 square inches.In order to take advantage of a metal roof as a ground plane, you cannot elevate a quarter-wave vertical high above a metal roof. The key is that the antenna feed point, which is usually at the mounting bracket, should be the same physical level as the metal roof to offer the best ground plane effect. Additionally, the metal roof sections must ...An external antenna will also help to boost the signal. How to Choose a Mobile Phone Antenna Antennas come in all shapes and sizes and it can be confusing which one to choose. Directional Antenna - If the signal is poor outdoors then it is best to go for a directional style such as a Yagi Antenna or a Panel Antenna. Being directional this ...The ground conditions dictate how well a vertical antenna will work as mentioned above the ground forms the "other half" of the vertical antenna. With this in mind a vertical working at ground level over ideal ground conditions such as very near to the sea will produce far better results than the same antenna working against poor ...As you can see in the illustration, using a gain antenna may cause poor performance in a hilly environment. Mobile antenna choice has a lot to do with the physical terrain. On an open and flat highway, a high gain antenna will be better…3 dB, 6 dB, etc. If your desired coverage area is hilly then a ¼ wave omnidirectional antenna will be better.Depending on the application, the ground plane can often provide an ingenious use of already-existing metal. For example, mounting an antenna that does not require a ground plane onto a big chunk of metal can adversely affect performance. The ground plane, if not needed, will certainly distort the antenna pattern.Best CB Antennas. In this article: 5 Best CB Antennas. #1 Best Fiberglass Antenna: FireStik FL3-B FireFly. #2 Best Magnetic Mount Antenna: Wilson Little Wil. #3 Best 102" Whip Antenna: Hustler ...The advantages of these antennas are directional, good front-to-back, and smaller than a Yagi. With the tips of the driven element and reflector bent to nearly touch, it squeezes the width of the antenna into a much smaller space. I've posted a 15-meter Moxon video too. The Par Electronics Stressed Moxon brings this compact design to six meters.Much taller than the average Ham mobile antenna, this tree branch snapper tops out at 17 feet, 10 inches above the road. ... Factors such as whip length, height above ground, size of the vehicle, etc., will require tuning the antenna, either by tweaking the number of turns on the coils or adjusting the length of the antenna's top whip slightly. ...The very important method for grounding and bonding is to create a single point ground. Bond the antenna to your grounding electrode system following the rules in Art 810. ...and don't forget, both the lead-in coaxial cable and the mast need grounded. iMuse97 Senior Member Location Chicagoland Jul 26, 2009 #8 [QUOTELay the first probe where it touches your CB antenna mount. Lay the probe flat across the mount surface, being careful not to touch the vehicle with the probe. Look to the left for a visual example of how to do this. Where to Put the Second Probe Be cautious working around your battery as you complete this step.The other portions are ground loss and antenna structure loss that dissipate power as heat. Example: 160 m 50 ft vertical = 34.6 deg = 6 Ohms ... Remember Hustler HF Mobile antennas? This is basically what this design is-only mechanically mounted on a mast Just put to two of them back-to-back and use three resonators and thereE/M Wave mobile antennas can be attached to combine an E/M Wave GPS Antenna for a single hole mount by installing a unique GPS Combination antenna mount. Additionally, VHF and UHF/700/800 MHz antennas can be connected to a dual band mobile radio through an E/M Wave VHF/UHF/700/800 MHz Duplexer . By FrequencyObviously, the ground is now acting as the reflector for this two element Yagi antenna. If this same dipole were placed at 0.5 wavelengths or 131 ft. height, then the "two" element Yagi has the classical DX elevation and azimuth patterns shown in Figures 9 and 10. Figure 9: Elevation Plot of a 75m Dipole at ½ Wavelength HeightSirio CX 395 (395-410 MHz) J-POLE UHF Base Antenna. $75.00. Sirio HP 2070R 2m/70cm Dual Band Mobile Antenna. $44.95. Sirio Titanium 3001 PL CB HAM Radio Mobile Antenna. $60.00 $33.00. Save: 45% off. Sirio GP 108-136 LB/U VHF Aircraft Band 108-136mhz Base Antenna.It works as an insulator between the antenna mount and the antenna grounding post. Plastic washer set it down next flat metal washer then lock washer then put on the top antenna mount and spring make sure the bonding is strong. Use a wrench to make the bonding strong. Check our guide about Sirius radio antenna fix. May 07, 2014 · You can calculate this by using the free Ground Plane Antenna Calculator tool at http://www.csgnetwork.com/antennagpcalc.html . Simply type the frequency into the field labeled “Desired Frequency” and click “Calculate” The minimum ground plane size required for optimal performance will be displayed below as “radial length” watermelon vape price These results show clearly how the antenna efficiency drops for small ground planes at frequencies below 1GHz. These results were obtained for a 3G/4G chip antenna operating at frequencies 791-960MHz, 1710-2170MHz, 2300-1400MHz and 2500-2969MHz. Generally, the ground plane would need to be 100mm or more for a device using the frequencies below ...level 1. · 1 yr. ago. Essentially what you want to do is run a ground wire (bare or sheathed, it doesn't really matter tbh) from a connection point on your antenna, to a ground rod that is driven about a few feet into the ground. An electrician probably wouldn't charge you too much for this, and you can rest easy because it'd be done right.Aug 19, 2013 · This article will cover the second phase of our Mobile HF project - bonding and grounding.The following is a summary of the phases of the project: Phase 1 - Install the Icom IC-7000 running barefoot with a simple MFJ HAMStick Antenna (to be replaced with the Scorpion Screwdriver Antenna in Phase 3) Phase 2 - Properly bond all… Re: How to Make a Scanner antenna. « Reply #1 on: August 29, 2007, 06:09:34 AM ». The main reason to use an outdoor antenna is a better Signal/Noise ratio; you lose signal attenuation by roof and walls of your home and are farther away from the in-house noise sources. You can gain on range by placing the antenna higher (don't forget lightning ...Fig. 3 - A number of popular CB antennas. In all cases, 1/4λ = 8'8" and 1/2λ = 17'4". FC is feed point for coax center conductor and FS is feed point for coax shield. (A) Ground plane, about 35 ohms impedance (52 ohms with built-in matching arrangement). (B) Drooping ground plane, about 52 ohms impedance.4G wifi 2.4G low profile omni multiband screw mount 3G mobile antenna LTE 698-2700MHz 2400-2500M VHF 136-174M 10 dipole elements black yagi antenna outdoor direction beam yagi antenna Kenwood power cable 14 GA 1.9 meters Red/Black with Cigarette lighter for car walkie-talkieDrill 1⁄2 inch (1.3 cm) holes using a good drill bit, and never drill close to the end of the pipe. About 2 inches (5.1 cm) from the end gives you a good spacing for the insulators. For the feed point, use yet another piece of PVC pipe, drilling a hole through the center to provide for a strain relief for the feedline.As an example, on 80 meters, with the radio or feed point on or near the ground, the wire end might be suspended to a support 90+ feet high; the slope angle is then 45°. EZNEC computed Z=1525 + J 2064 Ω. 50 Ω SWR = 51:1 Note that "antenna SWR" at the feedpoint does not effect radiation.Grounded Antennas: If an antenna is grounded, the earth still acts as a minor and becomes part of the radiating system. The ungrounded antenna with its image forms a dipole array, but the bottom of the grounded antenna is joined to the top of the image. The system acts as an antenna of double size. Thus, as shown in Figure 9-13a, a grounded ...Or, you can build antenna radials out of coat hanger wire, electrically bond them to your mounting hardware (not the antenna radiating element) and put them under the antenna in a symmetrical cross configuration. Tape them down until you see if it helps, then permanently secure them if it does. Probably will not. 5.End fed wires are possible using a 49 :1 balun and 33 to 72 feet of antenna wire. The wire runs from the balcony or window to a tree or support away from the building. The antenna should not cross any power lines or be where people can contact the wire. Verticals or semi-verticals can be installed on balconies.THE SCORPION MOBILE ANTENNA: Mobile applications set the focus for the initial requirements in the design of the Scorpion Antennas. Mobile operators need an antenna that will perform in all the different orientations a vehicle may operate, the highly interactive variable RF environment, and of course survive those "bird strikes". This antenna is built with physical security and survivability.Mobile Antennas. Designs vary, but there are basically three different types of mobile antennas: the ¼-wave vertical, the ½-wave vertical, and the ⅝-wave vertical. In general, the taller the antenna, the more gain the antenna will have. So, if the bulk of your operation will be in town, close to the repeaters, a ¼-wave vertical should work ...Mobile radio installation standards agree: Published standards specifically tell us to not ground to the battery post, and not to fuse the negative lead! 4.6.4. Negative Feed Connection. In the case of negative earth return vehicles, the negative power line should not be fused. It should be.3. Drive the rod into the ground. Using your hammer, drill, or driving tool, gradually drive the rod vertically into the ground. You need to drive your rod all the way into the ground. The electrical code states that it must have 8 feet (2.4 m) of contact with the ground, so you need to drive it all the way down.Air-craft, space-craft, satellites, missiles, cars, mobile phones etc. Array Antennas: Yagi-Uda antenna, Micro strip patch array, Aperture array, Slotted wave guide array ... Micro strip antennas are low-profile antennas. A metal patch mounted at a ground level with a di-electric material in-between constitutes a Micro strip or Patch Antenna ...Omnidirectional antennas (Ground Independent) These are the most common type of mobile phone/UHF/CB antenna - they have a 360-degree horizontal beam width, meaning they work in all directions. This type of antenna does not require a ground plane to function, so it can be mounted with a small bracket on just about any surface and location.It works as an insulator between the antenna mount and the antenna grounding post. Plastic washer set it down next flat metal washer then lock washer then put on the top antenna mount and spring make sure the bonding is strong. Use a wrench to make the bonding strong. Check our guide about Sirius radio antenna fix.The system operates through a fibre-optic terrestrial network, which connects four ground sites, including Hawaii, Norfolk, Sicily and Australia. An 18.4m Ka-Band antenna system installed on the MUOS enables communication between the satellite and MUOS ground stations.Jul 26, 2009 · The very important method for grounding and bonding is to create a single point ground. Bond the antenna to your grounding electrode system following the rules in Art 810. ...and don't forget, both the lead-in coaxial cable and the mast need grounded. iMuse97 Senior Member Location Chicagoland Jul 26, 2009 #8 [QUOTE End fed wires are possible using a 49 :1 balun and 33 to 72 feet of antenna wire. The wire runs from the balcony or window to a tree or support away from the building. The antenna should not cross any power lines or be where people can contact the wire. Verticals or semi-verticals can be installed on balconies.Best CB Antennas. In this article: 5 Best CB Antennas. #1 Best Fiberglass Antenna: FireStik FL3-B FireFly. #2 Best Magnetic Mount Antenna: Wilson Little Wil. #3 Best 102" Whip Antenna: Hustler ...Aug 19, 2013 · This article will cover the second phase of our Mobile HF project - bonding and grounding.The following is a summary of the phases of the project: Phase 1 - Install the Icom IC-7000 running barefoot with a simple MFJ HAMStick Antenna (to be replaced with the Scorpion Screwdriver Antenna in Phase 3) Phase 2 - Properly bond all… In Texas we callem SWR's although it Is a ratio and is not plural ... Lol..An swr analyzer is always best but if you do not have one you can use your radio ... Non-ground plane antennas will perform better when you do not have a true ground plane. For example, I wanted to put an antenna on my roof rack. Highest point on the truck, but I did not want to cut into the cab. ... Probably going with a 50x1 from Btech for the mobile. I have Midland handhelds and love them, but the price of their mobiles are ...Summary. When grounding an outdoor antenna, you should ground the antenna mast and install a grounded lightning surge protector. Use 10 AWG or thicker wire to ground the mast and surge protector, and make sure you're grounded to a suitable ground location. Not only will this keep your equipment safe, it will also potentially save you if there ... The amount/size of the "ground-plane" required for the optimal performance of a monopole antenna is determined by the frequency you are transmitting/receiving at. In this case, it's a multi-band antenna the customer is using (it can be used from 700 MHz - 2700 MHz) so the ground plane required could be anywhere from 4-64 square inches.You can bond equipment together at RF by connecting each piece of gear to a copper strap or pipe with a short piece of strap or wire. Ham gear usually has a ground terminal just for this purpose. Then connect the bonding strap or pipe to your AC safety ground rod with a heavy wire. Copper strap is sold at hardware and roofing stores as flashing.The ground for the mast should be as direct and short as possible, with minimal bends, using a minimum of 10 AWG copper wire (or 17 AWG copper-clad steel or bronze wire). It can be connected to the GES using a split bolt connector available at most hardware and home centers. The coaxial cable that comes from the antenna also needs to be ... Attach a Copper Wire to the Head of the Antenna and Secure it with a Mast Clamp If you are using a bolt to attach the wire directly onto the antenna, scrap off any paint or insulation. The copper wire must be in direct contact with the metal of the antenna. Extend the Grounding Wire from the Mast to the House Ground Wire Put some gravel in the bottom of the hole for drainage, brace the mounting pipe with the threaded portion up, and use quick-crete (you pour the dry stuff in the hole, then add water and stir with a stick). It sets up in about 20 minutes - so make sure that mounting pipe is straight up and down so the antenna won't be leaning.Phase 1 - Install the Icom IC-7000 running barefoot with a simple MFJ HAMStick Antenna (to be replaced with the Scorpion Screwdriver Antenna in Phase 3) Phase 2 - Properly bond all elements of my truck and deal with any noise issues (this article) Phase 3 - Install the Scorpion Screwdriver Antenna and ControllerAnswer (1 of 3): It's really not possible or practical without drilling a ground hole thru the paint of your vehicle. So this is the exact reason why mag mount antennas function poorly. AH, technically, the antenna is not grounded. The GROUND on an antenna is what it uses to form the wavefront. The ground for an antenna on a vehicle it typically connected to the vehicle body. Since it has rubber wheels, it can’t possibly be connected to ground. Many CB antennas are magnetically secured to the roof of a car. The body of your vehicle essentially serves as a ground plane for your mobile vertical antenna. The ground plane provides for return currents to the antenna, and it may be considered a substitute for the “other half” of a half-wave antenna, such as a dipole. It is an integral part of the antenna AC electric circuit. Strip the ground wire out - it's the only wire you need. 2. Make a small loop in each end, about ½" across. Either solder the loop wires together or tightly twist the wire so it will not come apart. 3. Measure and cut the wire exactly in half so you have two identical lengths. 4. Decide on the frequency of your FM station.Mobile Antenna "Gain" ... a good ground connection for the antenna and coax cable . Insert the coax from the top ** do NOT put the coax connector on first ! ** The mount will "snug up" into the ¾" hole when the top nut is tightened. Be sure to align the inside clamp teeth on the bare metal.1 day ago · LOG stands for Loop on Ground, a version of the traditional loop antenna on terra firma. The loop of wire can vary in circumference from about 20 to 150 feet and can be a very space-efficient ground-mounted antenna for reception on the low bands. The shape should be as close to a diamond or square as possible. May 04, 2020 · I am installing an antenna on a 65' mobile home. The Service Entrance pole id about 12'ft from the opposite end of the trailer. Per code the ground and neutral in the trailer panel are not bonded and there is a 4 wire entrance cable in from the service entrance. Antennas are used as our only a fundraiser for my RF Wireless group at UC Santa Cruz - Silicon Valley. My primary job is teaching at the University. ... BNC (female) to PL259 adapter - allows the DBJ-2 to adapt to most base and mobile radios. $2.50 SO-239 to BNC (male) $2.50 BNC (female) to SMA (male) $2.00 SMA (female) to SMA (female) - $1.50An independent ground antenna can also help to correct the signal range of your antenna. If you fix your antenna to one side of your vehicle it can create a lop sided signal. By utilizing a ground independent antenna it corrects the signal slightly to ensure it is a little more even. It also corrects the signal if you mount your antenna on an ...The purpose of this site is to show my antenna designs for the 11m band , and to help those that may want to build some 11m antennas !! I started off in CB radio at the age of 16 and got into antenna building because of lack of money to buy an antenna .... Later on I started using software to design Yagi antennas ( YA Software ) and got really ...Grounding is accomplished by connecting a heavy cable from the ground side of the antenna to a ground rod. A ground rod is typically a 4 - 8 foot copper plated steel rod driven. Ground Planes: "The antenna ground plane acts as a simulated ground.The antenna is a Comet SBB-5NMOwith 3 dB of gain on 2 m. Not a flamethrower, but a solid antenna when used with a good ground plane. The radials unscrew from the mount, so the ground plane kit packs up small. Our station was up on a hill, so we had great line of sight to the whole valley.One is part of the antenna and the other is for safety. A vehicle acts as the other half of an antenna system, the "ground" half. For example, a ground plane/counterpoise is needed for a quarter-wave or 5/8-wave antenna. Without the vehicle the antenna would not be complete. A more descriptive name for this kind of 'ground' is counterpoise.Step 6: Based off of the NCE requirement, in order to ground the antenna, you must use a solid copper wire which is a #10 AWG (American Wire Gauge) minimum. It is 1/10th of an inch in diameter. Make sure that you are using a solid wire rather than a standard one, as the latter become brittle quickly over time.Make sure to get above some of the housetops close by. Step 3 Attach the ground wire to the mast on the antenna, run it down to the ground and attach the other side of the wire to a rod in the ground. This will be the grounding wire. Step 4 Attach one side of the coax to the antenna, and run the remaining coax to the inside of the home.1. the building or structure ground electrode system as cover by 250.50. 2. The grounded interior metal water pipe system within 5 feet of point of entrance to building. 3.the power service accessible means external to the building. 4.the metalic power service raceway. 5.the service entrance encolsure.The research. Find your local broadcast transmitters. Use a signal-level meter to find the strongest signal. Position the antenna higher on the wall. Try a different wall. If all else fails, get a ...We leave the vertical radiator and look for a return path through the ground back to the radio. If we meet a wire in this direction then that return path is optimal, with low resistance. Current always seeks the path of least resistance. But what happens if we are careening off in a direction where there is no wire? Figure 5.Jun 21, 2021 · First, we need to make basic settings for your antenna. For this purpose, take about 7 to 8 inches of thin plastic pipe. The next step is to cut the aluminum soldering tape in a length of about 37 to 38 inches. Now we would attach the aluminum soldering tape with the pipe of the antenna. 3. Drive the rod into the ground. Using your hammer, drill, or driving tool, gradually drive the rod vertically into the ground. You need to drive your rod all the way into the ground. The electrical code states that it must have 8 feet (2.4 m) of contact with the ground, so you need to drive it all the way down.Answer (1 of 3): It's really not possible or practical without drilling a ground hole thru the paint of your vehicle. So this is the exact reason why mag mount antennas function poorly. 1 day ago · LOG stands for Loop on Ground, a version of the traditional loop antenna on terra firma. The loop of wire can vary in circumference from about 20 to 150 feet and can be a very space-efficient ground-mounted antenna for reception on the low bands. The shape should be as close to a diamond or square as possible. Usually, adding one or two copper straps from the hinge area to car body will improve grounding (and thereby antenna tuning). It is necessary that at least two of the four sockethead screws on mount penetrate paint to metal for proper grounding. (A little clear nail polish or other acrylic paint may be used to seal around mounting screws.)The system operates through a fibre-optic terrestrial network, which connects four ground sites, including Hawaii, Norfolk, Sicily and Australia. An 18.4m Ka-Band antenna system installed on the MUOS enables communication between the satellite and MUOS ground stations.PART - 1 : The EFHW antenna as a radiating and receiving element is a decent multi-band antenna with good efficiency on all bands, provided it is driven at its feed-point using a well configured and well-matched driving source. However, it has its idiosyncrasies. The radiation pattern of this antenna on most bands produces multiple lobes.With an inverted vee, try to keep the ends at least half that height above the ground. At lower heights, ground losses increase, although contacts are often still possible with the antenna 1m (3 feet) above the ground, or even less. My recommendation for a maximum height for an NVIS antenna is about 0.3 wavelengths.Jun 21, 2021 · First, we need to make basic settings for your antenna. For this purpose, take about 7 to 8 inches of thin plastic pipe. The next step is to cut the aluminum soldering tape in a length of about 37 to 38 inches. Now we would attach the aluminum soldering tape with the pipe of the antenna. You can co-phase any (2) ½ wave ground plan antennas or 2 Yagi beams. These are normally called "co-phased" or "stacked" antennas. ... If done right w/your mobile antennas, you can also increase your mobile signal by 25% in a certain direction. NOTE: This documentary will not apply to the "Scanner" or "Super Scanner" which has ...•Connect the bottom of the vertical wire to ground, add a source at the bottom, add the top loading wire(s) •Plot SWR in 10 kHz steps to find resonance •Vary length of top wire(s) to set FR Top Loading Guidelines •Make the vertical as tall as you can for best efficiency •Do what you can with left-over wire length at the top, either T or LApr 21, 2017 · You want the car body to be the ground plane. To make this work well sometimes it's necessary to place copper braid between the trunk lid and the car body. You may have to experiment. By the way the SSB14 is intended to be used on the FM portion of 6 meters. I've used mine on the low end of the band for sideband, but it's not too efficient for DX. An antenna for a foldable wireless device is provided. The foldable wireless device and antenna include a first housing and a second housing pivotally connected. A printed circuit board associated with the wireless device comprises a first PCB in the first housing and a second PCB in the second housing. The first and second PCB function as first and second radiating plates respectively. al shafar steel engineering Antennas are used as our only a fundraiser for my RF Wireless group at UC Santa Cruz - Silicon Valley. My primary job is teaching at the University. ... BNC (female) to PL259 adapter - allows the DBJ-2 to adapt to most base and mobile radios. $2.50 SO-239 to BNC (male) $2.50 BNC (female) to SMA (male) $2.00 SMA (female) to SMA (female) - $1.50The Planar Inverted-F antenna (PIFA) is increasingly used in the mobile phone market. The antenna is resonant at a quarter-wavelength ... It is important to note that even though the FCC report labels the specific regions as the antennas, the entire ground plane (i.e. the entire phone) makes up the antenna. That is - if you cut away the ground ...We leave the vertical radiator and look for a return path through the ground back to the radio. If we meet a wire in this direction then that return path is optimal, with low resistance. Current always seeks the path of least resistance. But what happens if we are careening off in a direction where there is no wire? Figure 5.You would construct a counterpoise antenna wire 11.5 inch for VHF, 6.5 for UHF and about 19.5 inches for an OK performing dual band VHF/UHF radio. Normally with a handheld radio the counterpoise...The ground for the mast should be as direct and short as possible, with minimal bends, using a minimum of 10 AWG copper wire (or 17 AWG copper-clad steel or bronze wire). It can be connected to the GES using a split bolt connector available at most hardware and home centers. The coaxial cable that comes from the antenna also needs to be ... Mobile Antenna "Gain" ... a good ground connection for the antenna and coax cable . Insert the coax from the top ** do NOT put the coax connector on first ! ** The mount will "snug up" into the ¾" hole when the top nut is tightened. Be sure to align the inside clamp teeth on the bare metal.It's a good idea to wrap the radial wire with electrical tape where it is soldered to the coax shield so that it doesn't contact the bolt head. Place the pipe cap onto the 5′ section of PVC pipe, and your antenna feed point is now finished! Figure 2. Figure 2. Pipe cap assembly with radial pig tailslevel 1. · 1 yr. ago. Essentially what you want to do is run a ground wire (bare or sheathed, it doesn't really matter tbh) from a connection point on your antenna, to a ground rod that is driven about a few feet into the ground. An electrician probably wouldn't charge you too much for this, and you can rest easy because it'd be done right.AH, technically, the antenna is not grounded. The GROUND on an antenna is what it uses to form the wavefront. The ground for an antenna on a vehicle it typically connected to the vehicle body. Since it has rubber wheels, it can’t possibly be connected to ground. Many CB antennas are magnetically secured to the roof of a car. If you're looking for a low cost solution for a portable hamstick antenna pole for your ham radio, then check out this video. In the tutorial, you'll find out how to make this temporary mount that can be used when going out into the wild or just hanging around your home. This should be low cost, and easy to build.A ham radio mobile installation greatly expands the utility of amateur radio and increases the opportunity of time to get on the air. [Video of this mobile station ... with solid electrical continuity between the antenna ground side and the vehicle mass. For ¼-wavelength vertical antennas, a good ground plane is essential to good performance. ...Best CB Antennas. In this article: 5 Best CB Antennas. #1 Best Fiberglass Antenna: FireStik FL3-B FireFly. #2 Best Magnetic Mount Antenna: Wilson Little Wil. #3 Best 102" Whip Antenna: Hustler ...A mirror-mount antenna needs a similar ground strap. Run it from the antenna's base to any well-grounded spot on the vehicle body. Surprisingly, bumpers and luggage racks are some of the worst antenna grounding planes! Note: If you haven't found out the right antenna by now, check out our article on best mobile ham radio antenna. 3. Final [email protected] Telephone Contact Hours: Monday - Saturday: 1:00 PM - 11:00 PM e.s.t. (Recorder) This is one of my refurbished Hy-Gain Penetrator Order 500 (original configuration) antenna assemblies. I use good condition original parts when ever and where ever possible.Times-7 A6590C (CP) Indoor RFID Antenna (FCC/ETSI) $383.00. Choose Options Save to List. Compare. Impinj. SKU: IPJ-A0311.One is part of the antenna and the other is for safety. A vehicle acts as the other half of an antenna system, the "ground" half. For example, a ground plane/counterpoise is needed for a quarter-wave or 5/8-wave antenna. Without the vehicle the antenna would not be complete. A more descriptive name for this kind of 'ground' is counterpoise.Step 1 Loosen one of the bolts on the antenna mast by turning it counter clockwise a few turns with the wrench. Remove any paint or protective coating from the area on the antenna mast where you will be connecting the ground wire. Video of the Day Step 2 Wind one end of the ground wire around the exposed bolt.If you put 4 watts into a 3-foot antenna you will get the same power out as if you wre putting about 1.5 watts into a 102-inch whip. If you put 4 watts into a 7.5 inch antenna on a hand held CB, it would put out as much power as a third of a watt into a 102-whip.The ground for the mast should be as direct and short as possible, with minimal bends, using a minimum of 10 AWG copper wire (or 17 AWG copper-clad steel or bronze wire). It can be connected to the GES using a split bolt connector available at most hardware and home centers. The coaxial cable that comes from the antenna also needs to be ... I rotated the image 90 degrees so it would fit on the page better. The left end has a point that drives easily into damp soil. The black fittings accept the NVIS wire with ease. You don't have to feed the wire through them, just drop through the notch. CLICK or TAP HERE to order eight of them.Jan 29, 2019 · 7. Secure the antenna in place using a 9/16” wrench. 8. Attach the counterpoise system to the ground shield of the feed-line. If using a MFJ-342 or similar mount attach the ground radials to one of the ¼” bolts located on the mount. Check to make sure the ground system does not come into contact with the screwdriver antenna. Mobile Operation Nonetheless, the antenna, as an antenna alone, does not need a ground for its ground plane. (But add one anyway for lightning, static discharge, RF, and DC grounding.) By sorting out our grounds--and further sorting real grounds from planes we only call grounds--we can achieve a better understanding of a. how monopoles work and b. why some ...In most ground-mounted 160, 80, 60, or 40 meter monoband vertical antenna installations with very good radial systems and high efficiency, feedpoint impedance at resonance is naturally well below 50 ohms. Achieving the best SWR match to 50-ohm coaxial cable on these resonant vertical antennas usually requires this type of coil for adjusting ...Many times, the antenna is mounted in a location that is easiest to accommodate for the installation. In actuality, the antenna should always be located and positioned for optimal radiation and operator safety. In theory, antennas radiate best in the center of the roof of a vehicle, because the metal roof of the vehicle acts as the best ground ...The body of your vehicle essentially serves as a ground plane for your mobile vertical antenna. The ground plane provides for return currents to the antenna, and it may be considered a substitute for the "other half" of a half-wave antenna, such as a dipole. It is an integral part of the antenna AC electric circuit.The body of your vehicle essentially serves as a ground plane for your mobile vertical antenna. The ground plane provides for return currents to the antenna, and it may be considered a substitute for the “other half” of a half-wave antenna, such as a dipole. It is an integral part of the antenna AC electric circuit. The ground for the mast should be as direct and short as possible, with minimal bends, using a minimum of 10 AWG copper wire (or 17 AWG copper-clad steel or bronze wire). It can be connected to the GES using a split bolt connector available at most hardware and home centers. The coaxial cable that comes from the antenna also needs to be bonded ...Omnidirectional antennas (Ground Independent) These are the most common type of mobile phone/UHF/CB antenna - they have a 360-degree horizontal beam width, meaning they work in all directions. This type of antenna does not require a ground plane to function, so it can be mounted with a small bracket on just about any surface and location.Mobile antenna. Hi, I am Tony. I0JX. Go 6 and 10 meters mobile with your. magnetic-mount 2-meter whip. I never had seriously considered operating HF mobile as, until very recently, we were only allowed to operate in the car on frequencies above 144 MHz. Thus, I just had a Kathrein magnetic-mount 5/8 l antenna for 2 meters and a VHF mobile rig.Buy Bingfu VHF UHF 144/430MHz Mobile Radio Antenna Dual Band 136-174MHz 400-470MHz Vehicle Ham Radio NMO Mount Antenna for Car Truck Ham Radio Mobile Radio Amateur Radio Two Way Radio Marine VHF Radio: ... for a real ground plane antenna installation. Reviewed in the United States on May 28, 2021. Color: ...Jul 26, 2009 · Jul 26, 2009. #7. tom baker said: Article 810 is not subject to the rules in Chapter 1-4 unless a reference is made in 810, see 90.3. The very important method for grounding and bonding is to create a single point ground. Bond the antenna to your grounding electrode system following the rules in Art 810. When grounding an outdoor antenna, you should ground the antenna mast and install a grounded lightning surge protector. Use 10 AWG or thicker wire to ground the mast and surge protector, and make sure you're grounded to a suitable ground location. Connect the antenna ground wire to the house service ground wire. Ensure the antenna ground wire is bigger than 10 AWG but not as big as the house ground wire. You need a clamp to secure this connection. Ideally, the house ground wire should be around 2 AWG.MAJOR ANTENNA PAGES The Antenna Elmer By AC3L & N3LSS -- Design your own HF/VHF/UHF dipoles, Folded dipoles, Inverted Vees, Ground Plane, Half Wave Vertical, 5/8 Wave Vertical, Quads, 2 Meter Beams, Quarter wave line matching and lots more. The DxZone has nearly 600 Antenna Articles ARRL Antenna Projects Web Page-- Includes Beams/Yagis,You could use a Heavy Duty J-Mount*, mounted on the back side of the Roof near the Peak, in line with the Back door. Assemble the J-Mount's Post, with the shorter bend attached toward the Bracket, and the longer section upright. This way the Mount would be hidden, and only the Antenna showing above the Roof.THE SCORPION MOBILE ANTENNA: Mobile applications set the focus for the initial requirements in the design of the Scorpion Antennas. Mobile operators need an antenna that will perform in all the different orientations a vehicle may operate, the highly interactive variable RF environment, and of course survive those "bird strikes". This antenna is built with physical security and survivability.You'll need to drive the 2" pipe into the ground with a sledgehammer or the back of an axe to allow the 1 ¼" pipe to slide into it as shown in figure 2. Space the pipe away from the home's foundation about the same distance as the upper strap you'll use to secure the pole at the roof line.Pedestrian Mobile. Antennas for handheld transceivers tend to be limited due to space constraints, with vertical antennas of 1/4 wavelength (at VHF) or smaller commonly used. Antennas for handheld transceivers typically do not provide a proper ground plane; the unit itself and any attached cables (such as external speaker/microphone or power ... One is part of the antenna and the other is for safety. A vehicle acts as the other half of an antenna system, the "ground" half. For example, a ground plane/counterpoise is needed for a quarter-wave or 5/8-wave antenna. Without the vehicle the antenna would not be complete. A more descriptive name for this kind of 'ground' is counterpoise.The advantages of these antennas are directional, good front-to-back, and smaller than a Yagi. With the tips of the driven element and reflector bent to nearly touch, it squeezes the width of the antenna into a much smaller space. I've posted a 15-meter Moxon video too. The Par Electronics Stressed Moxon brings this compact design to six meters.Most of the Comet and Maldol antennas we distribute are ground independent and can be mounted to new plastic/composite cars with the standard lip mounts. The exception is any antenna that has an electrical length of 1/4 wave. A 1/4 wave antenna is only half an antenna, the other half is the ground plane. So, a 1/4 wave has to be grounded to ...You would construct a counterpoise antenna wire 11.5 inch for VHF, 6.5 for UHF and about 19.5 inches for an OK performing dual band VHF/UHF radio. Normally with a handheld radio the counterpoise...Usually, adding one or two copper straps from the hinge area to car body will improve grounding (and thereby antenna tuning). It is necessary that at least two of the four sockethead screws on mount penetrate paint to metal for proper grounding. (A little clear nail polish or other acrylic paint may be used to seal around mounting screws.)The 5/8th wave antenna elements vertically phased and stacked on top of each other. Can often talk 100+ miles locally with this antenna, at 1 wavelength (approx 36' above ground). This antenna is made out of a silver plated teflon heavy duty and high guage wire, and a silver plated coil, to further enhance the gain of this vertical CB antenna.The ground wave field strength of a GP antenna on a metallic surface is about 15% stronger than a NGP system on the same vehicle in the same location. This is directly due to the way that the radio's power is delivered to the antenna via the special cable. There is some energy absorption within the cable assembly.Make sure to get above some of the housetops close by. Step 3 Attach the ground wire to the mast on the antenna, run it down to the ground and attach the other side of the wire to a rod in the ground. This will be the grounding wire. Step 4 Attach one side of the coax to the antenna, and run the remaining coax to the inside of the home.One is part of the antenna and the other is for safety. A vehicle acts as the other half of an antenna system, the "ground" half. For example, a ground plane/counterpoise is needed for a quarter-wave or 5/8-wave antenna. Without the vehicle the antenna would not be complete. A more descriptive name for this kind of 'ground' is counterpoise.Package Bundle PT99-B1. A complete base station CB antenna system just add your radio to the mix. Proton PT99 18ft Base Antenna. Universal Ground Plane Kit. 3 Foot Tripod Roof Mount. 5 Foot Galvanized Steel Antenna Mast. 50 Foot Coax Cable. $69.95.Aug 19, 2013 · This article will cover the second phase of our Mobile HF project - bonding and grounding.The following is a summary of the phases of the project: Phase 1 - Install the Icom IC-7000 running barefoot with a simple MFJ HAMStick Antenna (to be replaced with the Scorpion Screwdriver Antenna in Phase 3) Phase 2 - Properly bond all… GMRS Radio Services primarily opt for metallic ground plane antennas. You can either use your vehicle's bumper or fender mount to keep it working on the road. GMRS is also a good fit for the non-metallic ground plane antennas. In that case, you can use antenna mounts like the NMO mount CB antenna or the RFMAX RBC-450-5-NS. moe science syllabus 2022 311229. $119.99. The Drive OTR Antenna is a versatile, high-gain omnidirectional trucker antenna made for weBoost in-vehicle boosters. Notable for its customizable installation options and separate mast extensions, it's capable of extending its height from 7.5" up to 40" for optimal range. ADD TO CART.very useful guidelines for installing a mobile VHF/UHF antenna. Three seem evident to me. If readers see others, I would appreciate hearing from you. Antenna Mounting Rules of Thumb There are always lobes. Even though a car's body is large enough to provide an efficient ground plane for a VHF antenna, theTHE SCORPION MOBILE ANTENNA: Mobile applications set the focus for the initial requirements in the design of the Scorpion Antennas. Mobile operators need an antenna that will perform in all the different orientations a vehicle may operate, the highly interactive variable RF environment, and of course survive those "bird strikes". This antenna is built with physical security and survivability.May 07, 2014 · You can calculate this by using the free Ground Plane Antenna Calculator tool at http://www.csgnetwork.com/antennagpcalc.html . Simply type the frequency into the field labeled “Desired Frequency” and click “Calculate” The minimum ground plane size required for optimal performance will be displayed below as “radial length” Install vertical anchors directly under the trailer frame if you are connecting the tie-downs to the bottom of the trailer. Place diagonal anchors at a 40 to 50 degree angle out from the trailer frame. Use diagonal anchors in addition to vertical anchors to prevent the trailer from being moved sideways in high winds.As the vehicle shrinks, its RF ground shrivels.http://www.sciencewriter.netNow, touch one end of the multimeter cord to the metal core of the antenna cable connector and the other to a grounded object. Again, the reading should be zero, or else your antenna may be faulty. Installing a Global Positioning System Antenna Where Is the Best Place to Mount a GPS Antenna?Air-craft, space-craft, satellites, missiles, cars, mobile phones etc. Array Antennas: Yagi-Uda antenna, Micro strip patch array, Aperture array, Slotted wave guide array ... Micro strip antennas are low-profile antennas. A metal patch mounted at a ground level with a di-electric material in-between constitutes a Micro strip or Patch Antenna ...You would construct a counterpoise antenna wire 11.5 inch for VHF, 6.5 for UHF and about 19.5 inches for an OK performing dual band VHF/UHF radio. Normally with a handheld radio the counterpoise...The Ground Plane Scanner Antenna Kit includes the Comtelco All-Band scanner antenna and an NMO Ground Plane Base kit. These combine to provide a low-cost/low-profile basic base station antenna that works great on VHF, UHF and 700/800/900 MHz. This antenna requires one of the following coax cables to connect from the antenna to the scanner.All vertical antennas need to be grounded in some way. A mobile CB antenna uses the car body as the ground. On this CB Antenna, the four radial wires are used as the ground. This is called the ground plane of the antenna. The braided wire which forms the outside conductor of the coax is soldered to all four radial wires.The ground for the mast should be as direct and short as possible, with minimal bends, using a minimum of 10 AWG copper wire (or 17 AWG copper-clad steel or bronze wire). It can be connected to the GES using a split bolt connector available at most hardware and home centers. The coaxial cable that comes from the antenna also needs to be ... Jul 26, 2009 · Jul 26, 2009. #7. tom baker said: Article 810 is not subject to the rules in Chapter 1-4 unless a reference is made in 810, see 90.3. The very important method for grounding and bonding is to create a single point ground. Bond the antenna to your grounding electrode system following the rules in Art 810. One common solution is to add a second set of radials 1/4 wavelength below the first: often the lower set has 5 radials compared to 4 in the upper set. They may also be mounted on a 1/4 wave sleeve that is grounded to the mast at the bottom. A feedline choke may help, especially with a second one 1/4 further down the cable.May 04, 2020 · I am installing an antenna on a 65' mobile home. The Service Entrance pole id about 12'ft from the opposite end of the trailer. Per code the ground and neutral in the trailer panel are not bonded and there is a 4 wire entrance cable in from the service entrance. Summary. When grounding an outdoor antenna, you should ground the antenna mast and install a grounded lightning surge protector. Use 10 AWG or thicker wire to ground the mast and surge protector, and make sure you're grounded to a suitable ground location. Not only will this keep your equipment safe, it will also potentially save you if there ... Apr 21, 2017 · You want the car body to be the ground plane. To make this work well sometimes it's necessary to place copper braid between the trunk lid and the car body. You may have to experiment. By the way the SSB14 is intended to be used on the FM portion of 6 meters. I've used mine on the low end of the band for sideband, but it's not too efficient for DX. These results show clearly how the antenna efficiency drops for small ground planes at frequencies below 1GHz. These results were obtained for a 3G/4G chip antenna operating at frequencies 791-960MHz, 1710-2170MHz, 2300-1400MHz and 2500-2969MHz. Generally, the ground plane would need to be 100mm or more for a device using the frequencies below ...Theoretically the ground should be a large planar surface but even a bunch of separate rods which are connected to the shield of the feeding coax cable do the work acceptably. If the ground plane is horizontal and the whip is vertical the resulted antenna directs the signal horizontally 360 degrees around the whip axis.Mobile Antennas. Designs vary, but there are basically three different types of mobile antennas: the ¼-wave vertical, the ½-wave vertical, and the ⅝-wave vertical. In general, the taller the antenna, the more gain the antenna will have. So, if the bulk of your operation will be in town, close to the repeaters, a ¼-wave vertical should work ...Even for NVIS close in work, the ground loss increases as the antenna gets lower to the ground. ANY antenna works better if you raise it higher, up to about half wavelength above ground. A full sized vertical would be a mechanical monster, and cost a fortune. Even the commercially available top loaded 160 meter vertical is a project to install.Nonetheless, the antenna, as an antenna alone, does not need a ground for its ground plane. (But add one anyway for lightning, static discharge, RF, and DC grounding.) By sorting out our grounds--and further sorting real grounds from planes we only call grounds--we can achieve a better understanding of a. how monopoles work and b. why some ...An antenna ground plane is not to be confused with an electrical ground. A typical mobile CB antenna does not transmit horizontally, it radiates in a downward pattern. A metal surface (the larger and flatter, the better) is required underneath the CB antenna to launch the signal out into the atmosphere. Without an adequate ground plane surface ...As you can see in the illustration, using a gain antenna may cause poor performance in a hilly environment. Mobile antenna choice has a lot to do with the physical terrain. On an open and flat highway, a high gain antenna will be better…3 dB, 6 dB, etc. If your desired coverage area is hilly then a ¼ wave omnidirectional antenna will be better. universal motorcycle sissy bar Package Bundle PT99-B1. A complete base station CB antenna system just add your radio to the mix. Proton PT99 18ft Base Antenna. Universal Ground Plane Kit. 3 Foot Tripod Roof Mount. 5 Foot Galvanized Steel Antenna Mast. 50 Foot Coax Cable. $69.95.Easy, you can use an NGP or No Ground Plane required antenna. We have found that the best antenna for GMRS radios where little to no metallic ground plane is available is the RFMAX RBC-450-5-NS . The RFMAX RBC-450-5-NS is a UHF whip antenna with an NMO base and NO metal ground plane required. It also has a a SPRING base so that the antenna does ...What is a NVIS antenna? • NVIS is an acronym for Near Vertical Incidence Skywave. • It is an antenna has quite a history with military use. ... almost any where on the ground that is level. • The NVIS allows you to make reliable contacts from 30 to 400 miles away. • The NVIS antenna, due to its proximity to the ground, reception is ...Put some gravel in the bottom of the hole for drainage, brace the mounting pipe with the threaded portion up, and use quick-crete (you pour the dry stuff in the hole, then add water and stir with a stick). It sets up in about 20 minutes - so make sure that mounting pipe is straight up and down so the antenna won't be leaning.The closer any antenna gets to the ground the more current is induced into that lossy ground. Any improvement that you make to this lossy ground will improve this situation. There is just no need to unduly require it to "complete" a half wave length vertical, whether fed at the end or anywhere else.That's a shunt coil connected between hot side of antenna to ground used for matching the impedance at the antennas feedpoint. A non coiled mobile antenna like a 102" whip may benefit from this for better matching. I make my own using enameled wire wrap 7 turns around the threads of a half inch diameter bolt. The OP still needs a good D.C. ground.The ground for the mast should be as direct and short as possible, with minimal bends, using a minimum of 10 AWG copper wire (or 17 AWG copper-clad steel or bronze wire). It can be connected to the GES using a split bolt connector available at most hardware and home centers. The coaxial cable that comes from the antenna also needs to be ... Non-ground plane antennas will perform better when you do not have a true ground plane. For example, I wanted to put an antenna on my roof rack. Highest point on the truck, but I did not want to cut into the cab. ... Probably going with a 50x1 from Btech for the mobile. I have Midland handhelds and love them, but the price of their mobiles are ...The ground for the mast should be as direct and short as possible, with minimal bends, using a minimum of 10 AWG copper wire (or 17 AWG copper-clad steel or bronze wire). It can be connected to the GES using a split bolt connector available at most hardware and home centers. The coaxial cable that comes from the antenna also needs to be bonded ...Ground Wire Requirements The first rule of grounding is to direct the current to a single point inserted into the ground. The ideal case is a metal pole driven eight to ten feet underground; this ensures that even in the warmest and driest of climates, it will always be in contact with damp earth.antenna, the more you have to "gain" from an aggressive ground system. For example, the improvement for the 1/4-wave vertical, going from 0 to 64 radials, is about 2.6 db, certainly worthwhile but for the 1/8-wave base loaded vertical it's more like 3.4 dB, and for the mobile whip, nearly 6 dB. 5Transforming SATCOM fixed antenna capabilities. As a longstanding leader in the evolution of SATCOM ground stations, Viasat offers proven GEO, HEO, MEO, and LEO antennas for today's diverse broadband constellations and the next generation of satellites to come. LEARN MORE.I am installing an antenna on a 65' mobile home. The Service Entrance pole id about 12'ft from the opposite end of the trailer. Per code the ground and neutral in the trailer panel are not bonded and there is a 4 wire entrance cable in from the service entrance. There is a factory...Jul 26, 2009 · Jul 26, 2009. #7. tom baker said: Article 810 is not subject to the rules in Chapter 1-4 unless a reference is made in 810, see 90.3. The very important method for grounding and bonding is to create a single point ground. Bond the antenna to your grounding electrode system following the rules in Art 810. One common solution is to add a second set of radials 1/4 wavelength below the first: often the lower set has 5 radials compared to 4 in the upper set. They may also be mounted on a 1/4 wave sleeve that is grounded to the mast at the bottom. A feedline choke may help, especially with a second one 1/4 further down the cable.Pedestrian Mobile. Antennas for handheld transceivers tend to be limited due to space constraints, with vertical antennas of 1/4 wavelength (at VHF) or smaller commonly used. Antennas for handheld transceivers typically do not provide a proper ground plane; the unit itself and any attached cables (such as external speaker/microphone or power ... Pedestrian Mobile. Antennas for handheld transceivers tend to be limited due to space constraints, with vertical antennas of 1/4 wavelength (at VHF) or smaller commonly used. Antennas for handheld transceivers typically do not provide a proper ground plane; the unit itself and any attached cables (such as external speaker/microphone or power ... A ham radio mobile installation greatly expands the utility of amateur radio and increases the opportunity of time to get on the air. [Video of this mobile station ... with solid electrical continuity between the antenna ground side and the vehicle mass. For ¼-wavelength vertical antennas, a good ground plane is essential to good performance. ...The second step is to establish a ground for mounting your antenna. Word making the grounding plane make sure that the metal at the base of the antenna is in touch with the metallic portion of your vehicle and there are no obstacles in the way like any paint or coating. The third most important thing to keep in mind is the antenna height.In Texas we callem SWR's although it Is a ratio and is not plural ... Lol..An swr analyzer is always best but if you do not have one you can use your radio ... Take the 1 1/2" adapters and glue them to your PVC pipe; one on the top and one on the bottom (the bottom adapter can be used to mount the antenna to a flange for stability). Next drill a 5/8 inch hole in the top of your 1 1/2" cap and then attach it to the top adapter. Slide the coax through the PVC pipe and connect to your SO-239 connector.Ground plane availability is another critical factor in mobile antenna performance and must be considered when determining the location and type of the antenna. Ground plane requirements vary given the type of mobile antenna and the frequency of operation. A typical 5/8 wave antenna at 150 MHz requires a ground plane at least 42” in diameter. These results show clearly how the antenna efficiency drops for small ground planes at frequencies below 1GHz. These results were obtained for a 3G/4G chip antenna operating at frequencies 791-960MHz, 1710-2170MHz, 2300-1400MHz and 2500-2969MHz. Generally, the ground plane would need to be 100mm or more for a device using the frequencies below ...Connect the antenna ground wire to the house service ground wire. Ensure the antenna ground wire is bigger than 10 AWG but not as big as the house ground wire. You need a clamp to secure this connection. Ideally, the house ground wire should be around 2 AWG.That's why you don't need a ground connection or counterpoise when using a balanced antenna except for static/lightning purposes. When using unbalanced, end-fed antennas like mobile whips, verticals, random wires, rubber ducks and EFHA's, we need some form of a return path (the "other half of the dipole").Jan 29, 2019 · 7. Secure the antenna in place using a 9/16” wrench. 8. Attach the counterpoise system to the ground shield of the feed-line. If using a MFJ-342 or similar mount attach the ground radials to one of the ¼” bolts located on the mount. Check to make sure the ground system does not come into contact with the screwdriver antenna. Mobile Operation Pedestrian Mobile. Antennas for handheld transceivers tend to be limited due to space constraints, with vertical antennas of 1/4 wavelength (at VHF) or smaller commonly used. Antennas for handheld transceivers typically do not provide a proper ground plane; the unit itself and any attached cables (such as external speaker/microphone or power ... If the ground plane's four radials are parallel to the ground below, the antenna's impedance (atop a tower) will be around 22 ohms. You can raise the impedance to better match a 50 ohm coax transmission cable by sloping the radials downward away from the vertical element. A 45-degree angle usually works well to that end. The MultibandThe question is; How to provide a good electrical ground plane. 2 different options have been suggested; #1 Line the roof with multiple strips of aluminum tape. Each would run from front to back (full length of the coach) and be connected at multiple points along the path Bond the ground (frame and coax) of the antenna to the aluminum tape. #2 ...Omnidirectional antennas (Ground Independent) These are the most common type of mobile phone/UHF/CB antenna - they have a 360-degree horizontal beam width, meaning they work in all directions. This type of antenna does not require a ground plane to function, so it can be mounted with a small bracket on just about any surface and location.Antenna Grounding Planes. Part of omnidirectional cellular antenna design is a ground plane - or metal that reflects signal into the antenna itself. Many antennas have a ground plane built in, but in particular magnetic mounted antennas (often kitted with mobile boosters) require one be provided.E/M Wave mobile antennas can be attached to combine an E/M Wave GPS Antenna for a single hole mount by installing a unique GPS Combination antenna mount. Additionally, VHF and UHF/700/800 MHz antennas can be connected to a dual band mobile radio through an E/M Wave VHF/UHF/700/800 MHz Duplexer . By FrequencyJul 26, 2009 · Jul 26, 2009. #7. tom baker said: Article 810 is not subject to the rules in Chapter 1-4 unless a reference is made in 810, see 90.3. The very important method for grounding and bonding is to create a single point ground. Bond the antenna to your grounding electrode system following the rules in Art 810. Grounding: From the ground terminal on your radio (next to the antenna terminal) run a wire to either a copper cold-water pipe (PVC pipe won't work) or a copper ground rod driven into the ground. Some safety notes: 1. Keep your antenna far away from power lines! If you, your antenna or your ladder touches a power line, you could be KILLED. 2.1. the building or structure ground electrode system as cover by 250.50. 2. The grounded interior metal water pipe system within 5 feet of point of entrance to building. 3.the power service accessible means external to the building. 4.the metalic power service raceway. 5.the service entrance encolsure.The only equipment needed ground your antenna mast is the grounding cable. If your antenna mast is painted, you should make sure that you scrape off any paint before attaching the grounding wire. Choosing and Installing Grounding Cable The NEC recommends 10 AWG or lower gauge for your grounding cable.Steps for construction. To make a 2-meter mobile antenna need a PVC tee and two things to be attached with the top and bottom of the entertainer antenna. A-Cap is suitable for covering the top side, and a plug or a screw can be used at the bottom. Mostly stainless steel nuts and bolts are used for making a cap and a bottom plug.We are going to build a 1/4 wave elevated ground plane antenna for non-mobile use. The formula to figure the starting length of a 1/4 wave antenna is 246 / frequency in megahertz. So for 50.200 MHz and SSB operation we would want an antenna that is 58.8″ long. This is the actual length of a quarter wave.UHF has higher frequencies between 470 and 89 megahertz. Since UHF signals can carry signals farther without interference, it can provide you HD channels. UHF channels are numbered higher. Say, in the US, UHF channels are numbered 14-83. It has a shorter wavelength. Thus, it can bypass obstructions better than VHF signals.An antenna loading coil is an inductor placed in series with an antenna element in order to lower the antenna's resonant frequency. A standard dipole antenna is resonant if constructed with a length of one-half wavelength. A vertical antenna (effectively half a dipole operating against a ground plane) is resonant at one-quarter wavelength. . Resonance may also be observed at each of the odd ...Transforming SATCOM fixed antenna capabilities. As a longstanding leader in the evolution of SATCOM ground stations, Viasat offers proven GEO, HEO, MEO, and LEO antennas for today's diverse broadband constellations and the next generation of satellites to come. LEARN MORE.Jun 21, 2021 · First, we need to make basic settings for your antenna. For this purpose, take about 7 to 8 inches of thin plastic pipe. The next step is to cut the aluminum soldering tape in a length of about 37 to 38 inches. Now we would attach the aluminum soldering tape with the pipe of the antenna. All mobile and base transmitting antennas need counter-poise, more commonly called ground plane. The antenna is the reactive unit, the ground plane is the reflective unit. Neither is more important than the other. In mobile installations with standard antenna systems, the vehicle metal (body, frame, etc.) acts as the ground plane.The Ground Plane Scanner Antenna Kit includes the Comtelco All-Band scanner antenna and an NMO Ground Plane Base kit. These combine to provide a low-cost/low-profile basic base station antenna that works great on VHF, UHF and 700/800/900 MHz. This antenna requires one of the following coax cables to connect from the antenna to the scanner.Cut it off at about 106" and attach an antenna insulator to the end. The total length of the inner and outer conductor should be about 17 feet (1/2 wave). You can haul it up to any height you want with a string or rope attached to the insulator on the center conductor.Jan 09, 2018 · Elevation at a few feet off the ground can be accomplished with 4 wooden sticks and a tie-off of the radial. GMRS or General Mobile Radio Antennas often have an NMO connector at its mount, making them interchangeable and easy to install quickly. An NMO Mount or connector is normally installed on the roof or other locations, on the chassis of the intended vehicle. Alternatively, in mass transit systems, other threaded mounts are popular.If you put 4 watts into a 3-foot antenna you will get the same power out as if you wre putting about 1.5 watts into a 102-inch whip. If you put 4 watts into a 7.5 inch antenna on a hand held CB, it would put out as much power as a third of a watt into a 102-whip.Times-7 A6590C (CP) Indoor RFID Antenna (FCC/ETSI) $383.00. Choose Options Save to List. Compare. Impinj. SKU: IPJ-A0311.4G wifi 2.4G low profile omni multiband screw mount 3G mobile antenna LTE 698-2700MHz 2400-2500M VHF 136-174M 10 dipole elements black yagi antenna outdoor direction beam yagi antenna Kenwood power cable 14 GA 1.9 meters Red/Black with Cigarette lighter for car walkie-talkieEven for NVIS close in work, the ground loss increases as the antenna gets lower to the ground. ANY antenna works better if you raise it higher, up to about half wavelength above ground. A full sized vertical would be a mechanical monster, and cost a fortune. Even the commercially available top loaded 160 meter vertical is a project to install.Ground plane availability is another critical factor in mobile antenna performance and must be considered when determining the location and type of the antenna. Ground plane requirements vary given the type of mobile antenna and the frequency of operation. A typical 5/8 wave antenna at 150 MHz requires a ground plane at least 42” in diameter. Ground Your Antenna. After you've set up your outdoor antenna with good reception, you should take the additional step of grounding it to protect against static discharges and the effects of indirect lightning strikes. Summary. Setting up an outdoor TV antenna isn't rocket science. You'll need patience and sufficient time for both the ...An easy way to test your antenna's ground is check continuity between the CB antenna mount and your vehicle ground, because if the antenna mount is well grounded, so is your antenna. To examine for continuity of electrical signal, you will need to touch the probes for your multi-meter in 2 locations. You can do by either the red or the black ...RF Ground and The Ground Plane. In the environment of the mobile antenna system many factors contribute to the radiation of an excellent RF signal, but none more than the quality of the RF ground. The RF ground represents the "unseen half" of your antenna system. The visible half is the whip or other radiating element.You would construct a counterpoise antenna wire 11.5 inch for VHF, 6.5 for UHF and about 19.5 inches for an OK performing dual band VHF/UHF radio. Normally with a handheld radio the counterpoise...End fed wires are possible using a 49 :1 balun and 33 to 72 feet of antenna wire. The wire runs from the balcony or window to a tree or support away from the building. The antenna should not cross any power lines or be where people can contact the wire. Verticals or semi-verticals can be installed on balconies.The first thing to know is that there are three functions served by grounding in ham shacks: 1. Electrical Safety 2. Stray RF Suppression (or simply RF Grounding) 3. Lightning Protection. Each has it's own set of requirements, but not all station setups need every kind of ground. In fact, some setups don't use a ground at all!The body of your vehicle essentially serves as a ground plane for your mobile vertical antenna. The ground plane provides for return currents to the antenna, and it may be considered a substitute for the “other half” of a half-wave antenna, such as a dipole. It is an integral part of the antenna AC electric circuit. End fed wires are possible using a 49 :1 balun and 33 to 72 feet of antenna wire. The wire runs from the balcony or window to a tree or support away from the building. The antenna should not cross any power lines or be where people can contact the wire. Verticals or semi-verticals can be installed on balconies.Grounding is accomplished by connecting a heavy cable from the ground side of the antenna to a ground rod. A ground rod is typically a 4 - 8 foot copper plated steel rod driven. Ground Planes: "The antenna ground plane acts as a simulated ground.A dipole antenna is a resonant circuit at a given frequency. The same goes for an inverted 'V' version of that dipole. However, when we lower each leg of a dipole antenna closer to the ground, we introduce additional capacitance - which arises from the closer proximity of the antenna legs to the ground.The four base radials (B & C) and (D & E) can be soldered or bolted to the SO239 mounting holes using 4-40 hardware. The four base radials then should be bent downward to a 45 degree angle. The antenna can be mounted by clamping the PL259 to a mast or even passing the coax through a 3/4 ID PVC pipe and compression clamping the PL259.End fed wires are possible using a 49 :1 balun and 33 to 72 feet of antenna wire. The wire runs from the balcony or window to a tree or support away from the building. The antenna should not cross any power lines or be where people can contact the wire. Verticals or semi-verticals can be installed on balconies.Jul 26, 2009 · Jul 26, 2009. #7. tom baker said: Article 810 is not subject to the rules in Chapter 1-4 unless a reference is made in 810, see 90.3. The very important method for grounding and bonding is to create a single point ground. Bond the antenna to your grounding electrode system following the rules in Art 810. An easy way to test your antenna's ground is check continuity between the CB antenna mount and your vehicle ground, because if the antenna mount is well grounded, so is your antenna. To examine for continuity of electrical signal, you will need to touch the probes for your multi-meter in 2 locations. You can do by either the red or the black ...Put some gravel in the bottom of the hole for drainage, brace the mounting pipe with the threaded portion up, and use quick-crete (you pour the dry stuff in the hole, then add water and stir with a stick). It sets up in about 20 minutes - so make sure that mounting pipe is straight up and down so the antenna won't be leaning.The ground for the mast should be as direct and short as possible, with minimal bends, using a minimum of 10 AWG copper wire (or 17 AWG copper-clad steel or bronze wire). It can be connected to the GES using a split bolt connector available at most hardware and home centers. The coaxial cable that comes from the antenna also needs to be ...Cab Side mount 3-8x 24. Cable Assemblies for mounts. Hatchback or Door Lip Mount. Hatchback or Door Lip Mount -. L Bracket NMO-UHF. magnet mounts NMO-UHF- 3-8x 24. mirror mounts. Mobile Antenna Ground Plane Kit-. NMO TO N FEMALE.The research. Find your local broadcast transmitters. Use a signal-level meter to find the strongest signal. Position the antenna higher on the wall. Try a different wall. If all else fails, get a ...Ultra-Rugged and Low Profile. The AN650 Ground RFID Antenna is great for tracking RFID tags traveling through doors and other chokepoints. The ultra-low profile design means it fits in seamlessly in nearly any environment and provides the ability to be hidden under a mat or other covering. This antenna is just 8 mm thin and can withstand ...Answer (1 of 3): It's really not possible or practical without drilling a ground hole thru the paint of your vehicle. So this is the exact reason why mag mount antennas function poorly. A base coil loaded antenna properly grounded and located near the center of a vehicle will far out perform a fu...The 5/8th wave antenna elements vertically phased and stacked on top of each other. Can often talk 100+ miles locally with this antenna, at 1 wavelength (approx 36' above ground). This antenna is made out of a silver plated teflon heavy duty and high guage wire, and a silver plated coil, to further enhance the gain of this vertical CB antenna.Much taller than the average Ham mobile antenna, this tree branch snapper tops out at 17 feet, 10 inches above the road. ... Factors such as whip length, height above ground, size of the vehicle, etc., will require tuning the antenna, either by tweaking the number of turns on the coils or adjusting the length of the antenna's top whip slightly. ...An antenna ground plane is not to be confused with an electrical ground. A typical mobile CB antenna does not transmit horizontally, it radiates in a downward pattern. A metal surface (the larger and flatter, the better) is required underneath the CB antenna to launch the signal out into the atmosphere. Without an adequate ground plane surface ...An easy way to test your antenna's ground is check continuity between the CB antenna mount and your vehicle ground, because if the antenna mount is well grounded, so is your antenna. To examine for continuity of electrical signal, you will need to touch the probes for your multi-meter in 2 locations. You can do by either the red or the black ...Apr 02, 2019 · As previously discussed, the ground keep out directly affects the antenna. If the ground is closer than recommended, performance decreases. If the ground is farther away than recommended, performance changes as well. The key in using a chip antenna in RF design is to be aware of how your implementation will differ from the datasheet. flybuys petrol discountxa