Ground plane for mobile antenna I have one mounted on the left side of the hood on my Toyota Tundra. Mobile Radios. K. Quote; 0; WSEX658. A ground plane antenna for the 2 m band consists of an SO-239 connector, a 19. I mounted my mobile antenna in the attic above the garage. A mobile antenna should be placed in the middle of the vehicle roof to make best use of the ground plane. 3 out of 5 stars 132 ratings | Search this page . Standard CB antennas are antennas that require a ground plane (a metallic counterpoise) to perform properly. O. A No Ground Plane antenna will not perform as well as a traditional CB antenna of The need is a no ground plane dual band antenna that's capable of transmitting across all 2M, 70cm, and GMRS frequencies. Posted October 16, 2024. Maximizing the available ground plane is what bonding is all about. Laird TE Connectivity B8065CN. PCTEL Maxrad MWV1322HD VHF 132-174 MHz 2. Using no ground plane antenna cable for a traditional antenna (and vice versa) will give you high SWR problems. Laird TE Connectivity B1442NS. Price: $99. A complete Airband Ground Plane Antenna kit - each complete kit No Ground Plane Mobile Antenna The Diamond NR770HNMO is one good example of a no ground plane antenna. Three 4' Firestik mobile antennas (I used Firestik II's with tunable tips) D. If you already have a NGP coax and need to extend it (possibly needing a KPL258X connector), you can do so by using RG8X coax but keep in mind that you will have some loss. This arrangement allows easy This is a stupid suggestion, as it will try to refashion a 1/4-wave ground plane antenna into a 1/2-wave dipole. More doesn't hurt anything. Conversely, the ground plane is a metal sheet or radials installed beneath the antenna. It requires a license in United States but can be used license-free in Canada. Get it Apr 10 - 16. This is called the ground plane of the antenna. No tuning is required to adjust to a particular frequency within this range: just change the radio's frequency and you are ready to go. Maximum Power (Watts) 200. Laird TE Connectivity B4305CNS. 6:1, at 126 MHz it is 1:1 and 136 UAYESOK Mobile Base Antenna Ground Plane Kit, VHF/UHF 2m/70cm PL259 to SO239 Ground Plane Mount Antenna, 136-174MHZ/400-470MHZ GOOZEEZOO Radio Antennas JPC-12 HF Antennas for Ham Radio The construction of the 6m vertical antenna: The four ground plane elements are Constructed from 49. holes for wall or vertical surface mounting and four notches to provide secure mounting with the provided band clamps on a pole or mast up to 2 in. I will be on GMRS channels that are 462 - 467 Mhz. 2 Meters, L-Bracket 1255 3/4 Hole Stainless Steel NMO 3/4 Hole Mount L Bracket Mobile Antennas Motorola Kenwood Vertex HYT for UHF VHF Coax NMO Mount Cable Mobile Antennas Car Truck Hood install by. Ground plane is imaginary, and basically means that your RF signal won’t go down, so all the physical energy goes up and outward. 5inchs Magnetic Mount, W/13ft RG58 Cable PL-259 UHF Male Mag Mount (Black) UAYESOK Mobile Base Antenna Ground Plane Kit, VHF/UHF 2m/70cm PL259 to SO239 Ground Plane Mount Antenna, 136-174MHZ/400-470MHZ Bingfu Vehicle Mobile Ham Radio Antenna with Ground Planes Dual Band VHF UHF 136-174MHz 400-470MHz Magnetic Base Mount Soft Whip Antenna PL259 Male Connector for Car Amateur Radio Marine VHF GROUND PLANE AIR KIT: Complete Airband Ground Plane Antenna Kit . VHF 144-174 MHz Tunable 2. Members; 4 Author; Report; To the rescue, would be an external antenna. 125 dia. It covers the entire Civil Aviation Band of 118-136 MHz (General Aviation). The formula to figure the starting length of a 1/4 wave antenna is 246 / frequency in megahertz. . Laird TE Connectivity BB4502N. WEB site. e. Tuning both this and the ground plane antenna was a snap using the Firestiks' II tunable tips. That way if a cut to much, i toss it start with cheap new spare rod. 6 Element Mobile Would a non ground plane or a ground plane antenna work better in this location? Note that the mounting point is slightly elevated above the surface of the hood. Commonly used in communication Ok, I found this article: A Stealthy Homebrew Vertical Dipole Antenna Using Mobile CB Antennas EDIT: If building a dipole using a commercially available mobile antenna, couldn't you use an appropriate length of "all-thread" or some conduit as the ground plane? Versus buying two antennas and basically wasting one as a ground? Four resonant 1/4λ radials spaced at 90 degrees apart will provide a low-loss ground plane for a monopole vertical antenna, nearly equaling the performance from a 1/4 wave monopole antenna at ground level with 120 buried radials. performs well, but is “a cloud burner,” good for local contacts within 500 miles. Most mobile antenna installations use the metal part of the vehicle such as the chassis and the body for the ground Use NGP coax cable for NGP antennas. The NA4IT "CHEAP" Dual Band 2/440Mhz Ground Plane Antenna. Many magnetic mounts do not need a ground plane. WSEX658. The antenna mounted on a luggage rack crossbar that is Ground plane requirements vary given the type of mobile antenna and the frequency of operation. UAYESOK Mobile Base Antenna Ground Plane Kit, VHF/UHF 2m/70cm PL259 to SO239 Ground Plane Mount Antenna, 136-174MHZ/400-470MHZ HYS Amateur Dual-Band VHF & UHF Magnet Base Antenna for 2m/70cm Motorola Mobile Ham Radios & Repeaters with 3. 99 $ 8. I’ve chosen 2. To build a 146-MHz antenna, cut three 24-5/8-inch pieces from the wire you bought. The sturdy mounting bracket has two 0. GMRS Mobile UHF Whip Antenna with Black NMO Base, No Ground plane required, RBC-450-2-N. Fits almost anywhere, and stealthy. Skip to the A new mobile antenna especially designed for use on non-metalic vehicles, this antenna does not require any groundplane to work correctly. com/playlist?list=PL01YuCls6edYQkHejzJNAxZqX9eRBeG8BI have been wanting a versatile antenna that I can take with m Buy PCTEL Maxrad 144-174 MHz Heavy Duty 1/2 Wave No Ground Plane Antenna - Chrome: Radio Antennas - Amazon. 1 What is Antenna Ground Plane?; 1. VHF 1/2 Wave No Ground Plane (NGP) Antenna (VHF 144-174 Mhz) A Subreddit Dedicated to the (462 MHz) GMRS Radio Community. PCTEL Maxrad MWV1322HDS. Without a proper ground plane, Ground plane requirements vary given the type of mobile antenna and the frequency of operation. Designed to enhance your mobile antenna performance, An RF ground plane is a conductive surface that serves as a ground reference point for radio frequency signals in antennas. A typical 5/8 wave antenna at 150 MHz requires a ground plane at least 42” in diameter. A Quick and Simple 2 Meter Ground Plane Project! If can be used mobile on a short mast from the bumper!! 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. 4 dB Gain Wideband VHF Mobile Antenna - 48 in - NMO - Bandwidth 26 MHz - No Ground Plane Required Home; Cable Builder; Radios. Designed for installations that lack a suitable ground plane, this antenna features a tapered loading coil jacket with chrome plated fittings and an optional heavy-duty stainless steel spring. So a mobile antenna already has some tuning circuit designed to compensate for a ground plane less than 1/2λ in diameter. 5 MHz Black chromed mobile ground plane; Bands: 2m/70cm; Mount: PL259 - SO239; Made in Taiwan with RoHS Compliant; Frequency: 100-1300MHz; Length: Radial option 3 x 110mm or 3 x 155mm; Fitting: PL259 to SO239; Suitable for most VHF/UHF antennas; THIS GROUND PLANE KIT CAN NOT WORK INDIVIDUALLY AS AN ANTENNA. CB Radios; VHF Mobile Radios; UHF Mobile As the industry leader in mobile antenna products and accessories Laird produces antennas and accessories in a diverse number of styles and The size of the GPS antenna ground plane and the centering of the antenna on it can also affect the center frequency of the antenna, shifting it away from the target GNSS frequencies. The broad vertical beamwidth offers excellent null fill Antennas 101 27 The Ground Plane - 5 •Length (ft) 234 / f (MHz) –231 / f if #14 wire used, - 221 if 5/8” tubing •Feed point impedance 35 Ω –if radials used, sloping increases feed point impedance –approximately 45° of droop gives best match –halfway between dipole (72 The 1/2 wavelength antenna does not require ground plane, and it will be around 12" tall. The one pictured below is for receiving ADS-B aircraft Free Shipping - Diamond Antenna Dual-Band Mobile Antennas with qualifying orders of $99. No ground-plane' antenna kit, ideal for use on vehicles with no ground plane, i. Get it as Mobile Cellular Antennas for RVs and Boats Antenna Ground Plane Theory for RV and Boat Cellular Connectivity Access to comments is part of the interactive areas of a full MIA Membership. Laird TE Connectivity B4505CS. tapered The ground plane of an antenna in a mobile phone has significant role in improving the performance of the entire antenna structure. They typically have an impedance of around 37 ohms. 200 MHz and SSB operation we would General Mobile Radio Service (GMRS) Technical Discussion ; GMRS Antenna grounding (not ground plane) 0; GMRS Antenna grounding (not ground plane) If you have a non-ground plane antenna you don’t need to worry about ground. Image 2: Measuring from the Coax ( Base Loaded Antennas) Step 2: While keeping your probe on the mount (top- and center If you have a ground plane (radials, through hole mount on roof of a car, cookie sheet, etc. The base loaded matching network supports the collinear or trilinear rod sections above with no need for a ground plane. A mobile CB antenna uses the car body as the ground. You'll have impedance matching problems, as well as all of the issues you get driving a balanced antenna with an unbalanced feedline--high minimum SWR and RF radiating from the coax. 1) of the U-blox antenna application note GPS-X-08014-A1 is not written very consistent. 3 4. your mag mount is capacitively coupled to the car chassis which in turn is capacitively coupled to the earth. 441 Elk 2. I am looking to convert my mobile mag mount (NMO) 800 mhz antenna to use as base antenna. This clever bit of kit simulates the ground, and as the surface reflects radio waves, it creates a mirror image of the top half that appears on the Earth. Lima OH 45802, GOI-51048 telescoping whip antenna. The wire diameter affects the shortening factor of both the quarter-wave vertical monopole and the I was browsing ebay ealier this morning and stumble on a "Ground plane kit" which consist's of six radials of 6" long. Ground plane is important to signal propagation for standard CB antennas. The problem is whether I have any surfaces with sufficient area to provide a ground plane for 2m (which is where most of the repeater activity is here). Model Numbers: MHB5802S Definition A ground-plane antenna is a type of monopole antenna that incorporates a horizontal conducting surface, often referred to as the “ground plane,” to provide a stable, low-impedance reference point for the radiating element. On this CB Antenna, the four radial wires are used as the ground. ), then you can use almost any antenna design, 1/4 wave, 1/2 wave, 3/4 wave, 5/8 wave. A vertical seemed the obvious answer, a More power and a better antenna makes a big difference. Key GPS antenna types that require a Antenna gurus: I operate mostly mobile in a two-door coupe — Technician class at the moment. WiFi, base station antennas, and mobile communication. They are also found in aviation This ground plane is required for certain types of antennas such as a 1/4 wave mobile antenna, and it reflects the RF energy into the sky to complete a portion of a radiated signal. However I found a little mobile radio and antenna at a thrift shop dirt cheap. Shop VHF/UHF Mobile Vertical Antennas at DX Engineering. Price: $89. It’s important to do what you can to minimize ground losses by improving the ground plane. So be aware that the mount you plan to use will In the 1/4 wave vertical vs the 5/8 wave, the latter has some improvement on keeping a lower angle of radiation for working mobiles and it puts a bit more power on the horizon for skip, but this 1/4 wave ground plane when it comes to omni-directional, is the classic CB antenna, and when properly installed and fed, will work just as good as a I've got a question for the antenna gurus. This is because A ground plane is a form of a dipole antenna, making up half of the dipole. Since the radials are elevated, the ground losses are minimized, even though convert a mobile antenna to base. To build a 440-MHz antenna, cut three 10-5/8-inch pieces. The decision to proceed with the 5/8 wave ground plane antenna was largely based information and analysis provided by the RSGB's. com FREE DELIVERY possible on eligible Steel NMO 3/4 Hole Mount L Bracket Mobile Antennas Motorola Kenwood Vertex HYT for UHF VHF Coax NMO Mount Cable Mobile Antennas Car Truck Hood install by. Ideal for 2 & 70cm !! Key Features/Specifications: Black chromed mobile ground plane Frequency: 100-1300MHz Length: Radial option 3 x 110mm or 3 x Moved Permanently. The antenna I am interested in is this one: A1843B-50 Comtelco UHF 450-470 MHz 3dBd Gain 5/8 Wave 21" Base Load BLACK finish Mobile Antenna Convert your mobile antenna into a ground plane base! The MFJ-1401 converts most mobile antennas into a ground plane base station antenna. For two antennas located at 6’ each, the maximum theoretical distance is a mere 6 miles. 3 out of 5 stars. I have considered installing a mobile in the RV but I often like to set up under the awning and kick back in the chair to communicate rather than sit in the drivers seat. The longer the CB whip, the better the performance. Searching online I only find these "Trams Now I just use it for 700-900mhz scanner receive and its still works great with a new tuned 800mhz antenna, and I had to clip the ground plane radials to match 800mhz as well. 1. In this paper, a slotted ground plane configuration to design a very small and thin Planar Inverted-F Antenna (PIFA) is proposed. Right now I have a Tram 1185 mag mount (¼ λ on Ground plane losses only add to existing losses from coil-loaded, physically shortened antennas typical of most mobile HF stations. Price: $71. Fortunately there is an antenna that is inexpensive and simple to build with a minimum amount of parts and tools. Make your own. Frequency (MHz) 450-470. Visit the BINGFU Store. CB Radios; VHF Mobile Radios; UHF Mobile As the industry leader in mobile antenna products and accessories Laird produces antennas and accessories in a diverse number of styles and MGP-Tristar 50-700 MHz Mobile Ground Plane quantity + Add to cart. Frequency (MHz) 144-174 (Tunable) Product Narrative. The return loss is around 22 dB, which corresponds to an SWR of 1. When installing a mobile antenna on a car for example you need to make sure the antenna is grounded to metal which can be challenging if the car’s body is made of fibreglass Eifagur UHF VHF Dual Band 136-174MHz 400-470MHz Mobile Base Radio Antenna Ground Plane Kit, 2m/70cm PL259 to SO239 Ground Plane Mount, Improve SWR HYSHIKRA GMRS Outdoor Base Antenna, 462 COMPACtenna CompacCounterpoise is a unique NMO Mount Ground Plane Radial Kit that turns the amazing mobile COMPACtenna models into sturdy, and stealthy, base station antennas. Both antennas at 35’ and the maximum increases to 16 miles. com FREE Bingfu Ham Radio Vehicle Car Mobile Radio Antenna Dual Band VHF UHF 136-174MHz 400-520MHz Magnetic Base PL259 Male Antenna for BTECH ICOM Kenwood Midland Yaesu TYT Note: Some mobile antennas don’t require a ground plane. ----- "Information is power. Mounting an antenna on a car or truck is going to have the pattern effected by where it's mounted to some degree. only that run on mobile The GMRS-POINT5 / UHF optimizes your GMRS radio by delivering the best signal performance throughout the programmed channels. The NGP antenna you’re looking at probably uses the shielding of the coax feed line. Yet. A A No Ground Plane antenna will not perform as well as a traditional CB antenna of the same length, but in situations where you do not have an adequate ground plane Here is an example of a wire HF ground plane antenna feedpoint using my portable dipole kit: the two red radials are the wires for a 20m dipole, and the yellow vertical wire is an additional piece cut to about the same length. It is mounted using a Diamond K400SNMO mount. 49 $ 8. A ground-plane antenna, also called a quarter-wave or a monopole antenna, is widely used in radio communication systems. So for 50. Adapter Connector: UHF-Female to UHF-Male (SO239 to PL259) Short Gain Rod Length: 4. When a CB antenna is mounted on the roof of a car, very few cars have round roofs that are 5. ) This is equally true for both transmitting and receiving antennas since they are reciprocal devices; in general a good Tx antenna will also work equally well for Rx. It is for 2 meter, 70 cm. 00. Like the Nagoya GPK-01 or Tram 1465. Another option is rollup j-pole. Begin by removing the brass ground plane nut from the TRAM 1465 An antenna ground plane is not to be confused with an electrical ground. 1) and "Ground plane" (5. GP124-1K $199 GP124-3K @ $244* *(An M124-3 can be used for a higher gain result. 2 ft ) of 4mm ( 5/32 inch ) rod for the elements here, which resonates at 28. Running a ground wire (I'd recommend 6 gauge) from the mounting bracket -as straight as you can- down to your Any antenna requires two parts, whether that is a pair of discrete elements (eg: dipole) or with one provided by "reflection" in a ground plane (eg: monopole. Accepts VHF/UHF mobile antennas with PL-259 connector. If you are mounting the antenna on a mirror arm, or on a bar with enough space underneath, use a 'Ground Plane Kit. Those work better when hoisted on collapsible pole. Though Ham operators may cringe at the following admission, The decision to proceed with the 5/8 wave ground plane antenna was largely based information and analysis provided by the RSGB's. Your base antenna will need its own ground plane, and the TRAM kit supplies it using four radial rods. 1 Size and Shape; 2. The 'ground plane' of the antenna (car body) helps to bring in an or direct the signal out of an antenna. To build a 223-MHz antenna, cut three 17-5/8-inch pieces. So if you I'm wanting to ground my vehicle ham radio antenna to improve 6 meter transmission and transmission. CB Radios; VHF Mobile Radios; UHF Mobile Radios; Dual Band Mobile Radios; Fixed Mount antenna is suitable for use where no ground plane exists. UHF 430-450 MHz 5/8 Wave 5db Gain Mobile Antenna - No Ground Plane Required Read More. No, it is a 1/8 wave understand the quarter wave ground plane. 5dB Gain 1/2 Wave Mobile Antenna - No Ground Plane Required - NMO Description; Documents; Reviews; Related Products; Required Items; Manufacturer. CB Radios; VHF Mobile Radios No Ground Plane Required Dual Band 144/440 MHz 2m/70cm Amateur Ham Radio Antenna - 13. The gain with no ground plane is unity. Both Pizza Pan Ground Plane . 2 Material and UHF 450-470 MHz 5/8 Wave 5db Gain Mobile Antenna - No Ground Plane Required Description; Documents; Reviews; Required Items; Manufacturer. "5/8-Wavelength Vertical Antenna for Pentecost, Mobile Work," Ham Radio, May 1976. Let’s begin by looking at the behavior of a ground plane antenna with equal lengths of vertical and 4 radials. 5mm rods from Amazon. There has been a lot of forum discussion about the antenna ground plane. 1 The Basics of Antenna Ground Plane. I'll spend most of the time on the 70cm and GMRS frequencies, so 440-470 MHz. Certain types of vertical antennas require a 'ground plane' and some do not. 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 It may DC ground the antenna's base, and it just might RF ground it too depending on the straps length and width versus the frequency of operation. Joined Dec 4, 2006 Messages We are going to build a 1/4 wave elevated ground plane antenna for non-mobile use. The calculator takes into account the wire diameter of the monopole and radials. 4 dBi. 02 wavelength above earth level. In electrical engineering, a ground plane is an electrically conductive surface, usually connected to electrical ground. 4, Maximum Power 200(Watts), Whip Length 49 Price: $77. HF: More is Better. A typical 2M mag-mount antenna relies on the metal of the car to do the job. Unity gain without, 2. Since antennas have a variety of cable entry sizes we have left this ground plane without a center hole so that you can drill your own hole using a VHF Airband Antenna The GP3 is a omnidirectional unity gain adjustable ground plane Airband antenna ideal for local area coverage when a high gain antenna is not required or justified. 4 dB Gain No Ground Plane Mobile Antenna - 5/8 wave - NMO - 6 in Read More. Environmentally tested for both indoor or outdoor applications. Frequency (MHz) Here is where base-loaded CB antennas usually work well. Last edited: Nov 29, 2012. Reading the graph at 118 MHz shows a SWR of less than 1. c55399 Member. Larsen. measuring 25 PCTEL Maxrad MUF4502 UHF GMRS 450-470 MHz No Ground Plane Two Way Radio Antenna. You can run a 2M mag mount antenna without putting it on any metal ground plane. Price: $75. A solid, low-resistance ground is key to getting the most from your mobile antenna. This 20x20 thin aluminum sheet is backed with ultra-strong adhesive. Swapped out the Nagoya duckie on my unmentionable Chinese HT for a mag mount mobile antenna slapped onto a 16" round pizza pan in an attempt to get better RF from inside my house, specifically while sitting in My trusty antenna analyzer has shown me that you really want 19" of metal on at least one side of the antenna. Cette antenne est constituée de la même façon qu'un monopole quart d'onde sauf que son brin rayonnant mesure une demie longueur d'onde et non plus un quart d'onde. 450-470 MHz, 2 dBi. At In mobile applications, the vehicle body acts as the ground plane (reflective unit). One will be at the base of the antenna. Today we’re RGPK-4G-NMO: Ground Plane Kit for 4G/LTE NMO antennas. With four - 45 degree angled radials, Below is a quarter wave ground plane antenna I made for 23cm, 1296MHz which is made from off-cuts of household mains copper wire and a scrap BNC socket from the junk box. The SWR will change quite a bit though, which means the bandwidth will change too. At Part of omnidirectional cellular antenna design is a ground plane - or metal that reflects signal into the antenna itself. If your metal sheet is that size or smaller you'll get better performance sticking the mag base on the edge, not the center. The metal surface enables the signal generated when transmitting to reflect off the surface and This ground plane is required for certain types of antennas such as a 1/4 wave mobile antenna, and it reflects the RF energy into the sky to complete a portion of a radiated The body of your vehicle essentially serves as a ground plane for your mobile vertical antenna. I wanted high efficiency 40 Meter antenna with low-angle radiation. 25-in. This Ground Plane Radials System is designed to work well at mag mounts,ground planes, work against a reference ground. youtube. It doesn't need to be electrically grounded to the antenna, it just needs to be directly beneath the antenna. For installations that have no metallic surface or suitable means for a ground plane. It delivers industry leading wideband performance and reliability, with minimum loss and no tuning required. Radio sales, P. Price: $55. Box 1105, 1016 E. C. some broadcast antennas sit on a glass ball. Ground planes are typically made of copper or aluminum, and they are often located on the bottom of printed circuit boards (PCBs). com FREE DELIVERY possible on Yes that is true, mobile whip antennas utilize the body of the vehicle for its ground plane. The radials are ground mounted. See Chapter 6 for more details on practical ground-plane verticals. Whichever method you choose, be sure to use heavy gauge grounding wire, properly solder all connections, and seal any bare metal with a corrosion inhibitor. A mobile cb antenna like this needs the ground plane to complete the electrical circuit and force the radio signal out of the antenna and not back down the coax to the radio and seen as a high swr. However, embedding an efficient cellular Hi Everyone, I am totally new to radios. Base Loaded Chrome Coil Rugged- No Ground Plane Required With a stainless Spring, 33" Tall at Lowest Frequency, 5dB gain, RBC-450-5-NS. In addition to exploring novel antennas, the effective utilization of the mobile phone ground plane and its associated volume is crucial to a successful design. Some use the aircraft skin (on metal aircraft), some use a foil or aluminium Mobile 1 base station antenna. Radialless design, does not require ground plane. 49. The This mobile ground plane antenna can effectively enhance the signal of your mobile radio transceiver. VHF 132-174 MHz 2. Mobile Antennas. Those are usually for fixed mount, like attaching to a pole, as cheap vertical antenna. These combine to provide a low-cost/low-profile basic base station antenna that works great on VHF, UHF and That no ground plane antenna would be a real last resort - perhaps only marginally better than the stubby antenna on a GMRS hand-held radio. Eureka St. Learn how to correctly mount and ground mobile antennas. UHF 420-470 MHz Tunable 3dB Mobile Antenna - No Ground Plane Required - Steel Spring Base Read More. Use Cases of Monopole Sirio GL27 'No Ground Plane' CB Antenna. Model # NMO150CHW. For home, go to YouTube look up 70cm 1/4 wave ground plane verticle. That includes working through repeaters such as available above 29 MHz. The more you load Six Meter Antenna; Mobile Installation Guide; Wireless PTT; Headset Adaptor; Yaesu Headset Adaptor; Separation Cable for The FT-7900R and Similar Radios; Programming the FT-7900R; Simple Ground Plane Antennas for . It offers an omnidirectional pattern. NGP antennas use a coil and capacitors to create a ground plane effect, making them ideal for use on fiberglass, RVs, boats, and other non-metallic surfaces. 2. A typical mobile CB antenna does not transmit horizontally, it radiates in a downward A no ground plane antenna is designed to use the ground or water to transmit horizontally. 3(b) with λ/4 choke-slot Computed and experimental results show good agreement Find Triple Band Mobile Antennas Band Coverage at The Antenna Farm! Home; Cable Builder; Radios. ' These are antenna mounts with metal rods underneath to provide a groundplane for the antenna, click here. TRAM 1465 LAND MOBILE BASE GROUND PLANE KIT TRAM 1465 LAND MOBILE BASE GROUND PLANE KIT: GPS & Navigation . Includes NMO to N-Female adapter and 4 radials for 700 MHz and up UAYESOK Mobile Base Antenna Ground Plane Kit, VHF/UHF 2m/70cm PL259 to SO239 Ground Plane Mount Antenna, 136-174MHZ/400-470MHZ Bingfu Vehicle Mobile Ham Radio Antenna with Ground Planes Dual Band VHF UHF 136-174MHz 400-470MHz Magnetic Base Mount Soft Whip Antenna PL259 Male Connector for Car Amateur Radio Marine VHF Another antenna that’s popular and effective is the ground plane antenna. Either way All vertical antennas need to be grounded in some way. Create a stealth antenna out of a single mobile whip. This makes it good for communicating with mobile stations. The setup is prevalent in many communication systems. Ground Plane Versus No Ground Plane. A ground plane is a form of a dipole antenna, making up half of the dipole. 1/2 Wave Antenna. Some antennas are designed above a ground plane to produce a specific radiation pattern, control the antenna’s input impedance, or for practical reasons of implementation. We sell factory pre-tuned, wideband performance high gain antennas. 99. 5dB Gain 1/2 Wave Mobile Antenna - No Ground Plane Required - NMO Read More. However, it is by no means a replacement for an adequate ground plane Buy UAYESOK Mobile Base Antenna Ground Plane Kit, VHF/UHF 2m/70cm PL259 to SO239 Ground Plane Mount Antenna, 136-174MHZ/400-470MHZ: Radio Antennas - Amazon. Frequency Range 512 - 2500MHz, N Female Terminated (Coax Cable and Antenna Not Included) Read More Laird TE Connectivity B8065CN 806-866 MHz 5 dB Gain No Ground Plane Mobile Antenna - NMO - 16 in. Hello Spring and Hello Sales! Use code . The photos show how to build the antenna, but they may not communicate why the cut lengths I prescribe are some- what longer than the finished The MFJ-1401 converts most mobile antennas into a ground plane base station antenna. Product Description. Antennas mounted on front bumpers 2. NOTE: Whip antenna, mounting pole and coaxial Heavy Duty 1/2 wave No Ground Plane Antenna, 144-174 MHz (Tunable), Gain (dB) 2. Wilson 5000 or Wilson 1000 Antenna Ground Plane Kit Now for the question, can this be beneficial in creating a better ground plane or For my radios I bought the nanovna antenna analyzer on Amazon. If your antenna is mounted on a metal roof, the entire roof surface provides a ground plane, assuming that you don't have a Buy Anteenna TW-(MAG) MAT-50 Magnetic Counterpoise Ground Plane for HF Antennas – Enhance Signal Performance with Magnetic Mount: Antennas - Amazon. Taxi Radio Transceivers. Magnetic Taxi Antennas; Mobile Taxi Antennas; Ground Plane: ⅝ wave: ½ wave: ¼ wave: ½ wave over a ¼ This ground plane provides a suitable grounding plane surface for just about any antenna. L'antenne verticale demi-onde de type Ground Plane. 760-870 MHz 3 db Gain Elevated Feed Mobile Antenna - NMO - 23 in Read More. Joined Apr 17, 2010 Messages 12. It also showed that you don't have to use steel, aluminum works fine too, the base just won't stick. Thread starter c55399; Start date Oct 18, 2013; Status Not open for further replies. At VHF and UHF frequencies, these rods are sufficient for creating the ground plane. [1]The term has two different meanings in separate areas of electrical engineering. Most verticals are 1/4-wave (not a dipole) and require a 'ground plane' to complete the 'virtual dipole'. More Info Specifications Reviews 12. Make sure your antenna is installed to your roof or trunk when taking these measurements. . 25 in. A vehicle will actually provide a good ground plane for permanent or VHF/ UHF magnetic-mount antennas with a typical three- to four-inch base. Usable Bandwidth. An exterior, The Wouxun ANO-050G is a GMRS mobile antenna with an NMO The ground plane is a vertically polarised omni-directional antenna. 8 inches - NMO Read More Antennas for dash mounted mobile radios using VHF, UHF, GMRS, including whip style, shark fin low profile antennas, no ground plane antennas, fiberglass antennas, wide band, and Ford Series specific antenna options. Either way Not all antennas need a ground plane. 4: Radiation pattern of the antenna with ground plane compensation (a) Structure of Fig. The Ground Plane Scanner Antenna Kit includes the Comtelco All-Band scanner antenna and an NMO Ground Plane Base kit. IT WORKS IN COMBINATIION WITH ANY First things first, I'm not a ham. 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. Check the specs of your particular antenna. Accessories - Search & Rescue Taxi . For the case where one antenna is 35’ and the other is 6’, the maximum theoretical is 11 miles. LtDoc Member. 5", the POINT5 antenna packs big performance in a small size. MGP-Tristar 50-700 MHz Mobile Ground Plane $ 20. ground plane antenna with radials . Compatible with GMRS repeaters. That’s the the 1/4 wave ground plane antenna. CB Radios; VHF Mobile Radios; UHF Mobile Radios; Dual Band Mobile No Ground Plane Required - Spring Base - 22 in - NMO For our July Fourth Safety Watch this year, I used my dual-band mobile antenna on a ground plane mount on a camera tripod. The Larsen BSA-KIT Base Station Antenna Kit is the professional method of converting commercial or amateur That's 8' 7" in imperial units. On the HF bands, our vehicles act more like a capacitance to ground, rather than a ground plane. If you had a vehicle with a VHF 132-174 MHz Tunable, No Ground Plane Mobile Antenna, Stainless Steel Spring Base Read More. Less hampers signal propagation. FREE delivery Wed, Dec 18 . The Laird MBCN is a Mobile to Base Station Antenna adapter for use with VHF and UHF antennas. A typical 5/8 wave antenna at 150 MHz requires a ground plane of at least 42” in diameter. This compact antenna is designed to provide superior pattern coverage for mobile and fixed applications with no need for a ground plane. Mobile Antenna Power Winding 5/8 wavelength of wire on a 1/8 wave fiberglass rod as a reduced-length mobile antenna, and calling it a “5/8 wave antenna”. We propose a uniquely modified ground plane configuration to design ultra-thin PIFAs. Laird TE Connectivity TRA4500NP UHF 450-470 Phantom Antenna - No Ground Plane Required - N Female Terminated - White. Laird TE Connectivity B4305CN. The General Mobile Radio Service (GMRS) is a North American land-mobile FM UHF radio service designed for short-distance two-way communication. 5" GMRS Mobile UHF Whip Antenna with Black NMO Base. Measuring a total of only 12. Order S/S 2. and is often an electrical ground, as well. So how long should your radials actually be? After antennas, station grounding is probably the most discussed subject in amateur radio and it is also the one replete with the most misconceptions. As it has been explained to me, this is the key property which means the size of a ground This unit is a Black 'Phantom' style Omni-directional antenna with NMO-mobile mount operating at 450-470 MHz range. Ideal for use on fibreglass cabs, caravans, boats etc. On the base will be a ring with a couple of ground plane radials. L'antenne verticale demi-onde de type Ground Plane Cette antenne est constituée de la même façon qu'un monopole quart d'onde sauf que son brin rayonnant mesure une demie longueur d'onde et non plus un quart d'onde. CB Radios; VHF Mobile Radios; UHF Mobile Radios; Dual Band Mobile UHF 450-470 MHz Mobile Antenna - No Ground Plane Required Description; Documents; Reviews; Required Items; Manufacturer. 5/8 antenna will also work without ground plane, but it's not going to be more efficient (if mounted without good ground plane), Ground 2. Includes bracket, clamps, radials and mounting bracket. However, the difference between a ground plane and an antenna with two elements is in the fact that a ground plane (or set of radials) allows the current to spread out. Wire using the CompacCounterpoise Optimized Base Station Ground Plane paired with a COMPACtenna 7. 4 dB Gain Wideband VHF Mobile Antenna - 48 in - NMO - Bandwidth 26 MHz - No Ground Plane Required - Spring Base Read More. It provides an electromagnetic reflection of energy to complete a portion of a radiated signal. Gain Bingfu Vehicle Mobile Ham Radio Antenna with Ground Planes Dual Band VHF UHF 136-174MHz 400-470MHz Magnetic Base Mount Soft Whip Antenna PL259 Male Connector for Car Amateur Radio Marine VHF Radio In the world of IoT devices, where components are becoming smaller and smaller, cellular antennas are essential components that facilitate connectivity and communication. 99 $ 36. Black fibreglass tapered whip with attach a ground plane and check the VSWR at two well-separated frequencies. 24 m (17' 2") in diameter. L. A ground plane, also called counter poise, is the reflective unit in the system, while the antenna is the reactive unit. Figure 2 shows a typical radiation pattern of a groundplane antenna as could be found in antenna handbooks. Gain (dB) 5. Imagine you are mounting the antenna in the center of a circle, The minimum required diameter of that metal circle ground plane when the antenna is mounted in the center is "Twice the length of the antenna", For example if your antenna is 515mm long then the circle should be a minimum of 1030mm in diameter, So the shorter the antenna the smaller the ground plane needed to be 896-970 MHz 2. kb2vxa Completely Banned for the Greater Good proven to yield excellent results. The results will show whether the stub is too long or too short. I have a dual band uhf/vhf mobile antenna. These are mounted to the base plate by the use of eight stainless steel machine screws. Add to cart. Easy install on any 2” pipe with clamps or mounting The idea is simple enough — hang a wire vertical from a support, using two elevated but sloped radials to form a basic "ground plane" antenna. If UAYESOK Mobile Base Antenna Ground Plane Kit, VHF/UHF 2m/70cm PL259 to SO239 Ground Plane Mount Antenna, 136-174MHZ/400-470MHZ CB Radio Antenna Single Groove Mirror Mount W/ SO239 Stud - GMRS (450-470 MHz) Mobile / Vehicular Antenna. Editors Note - Here is a very easy to build dual band (2 meter/440) vertical ground plane antenna that may end up as your primary Add style and the perception of excellent performance with a ground plane kit, or ground radial kit for your CB antenna. Pretty good! I The Comet is a mobile antenna and will only work properly with a ground planing surface such as a vehicle body Also wouldnt mind hearing feedback on anyone with the CA-2x4SRB use as a mobile (w/o ground plane obviously) and its pros/cons/personal feedback. ANTENNA PARTS LIST: Keep in mind that this, and power lines go down and the cell phones dont work 90 % of all ham radio will no longer work either. SWR was too high, around 3:1. KO4IPV Member VHF 144-174 MHz Tunable 2. Includes stainless steel mounting hardware, two hose clamps, allen wrench, and four 20. I built one of these about 10 years ago and did it in less than an hour. No Ground Plane Mobile to Base Station Adapter Kit for NMO Mount Type Antennas. Base loaded 3dB gain antenna. D. Home; Cable Builder; Radios. This The rods provide the proper ground plane function for any of the mobile antennas that work in the 144 to 512 MHz range. Includes stainless steel mounting hardware, two hose clamps, Allen wrench, Shop amateur (144/440) VHF/UHF high gain dual band mobile antennas at The Antenna Farm. Model Numbers: BMLPVMBLTENGP The ¼ Wave Droopy Ground Plane Antenna. 0 CH 20 - To build a 146-MHz antenna, cut three 24-5/8-inch pieces from the wire you bought. It helps to create a resonant structure, improves the antenna’s efficiency, and enhances its radiation pattern. 5″ or 9″ model Mobile Antenna. 200 Watts. "Ground mounted" means that they are only 0. VHF UHF Manual - fourth edition by Photo 4 Standard mobile antenna mount adapted There are two ways you need to ground this. non-metal vehicles, fibreglass vehicles, caravans, boats, etc. us old goats used a pc of pipe setting on a coke bottle. 6inch (118mm). $8. CB (26 MHz) heavy duty no ground plane antenna reduces tuning requirements. detailed analysis. elements to form the ground Ever wanted ground planes for your VHF/UHF mobile antenna Now you can . In this case, it’s a multi-band antenna the customer is A Quick and Simple 2 Meter Ground Plane Project! If can be used mobile on a short mast from the bumper!! 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. As you will see, the higher the Tx and Rx antennas are, the greater the theoretical distance. The rods provide the proper ground plane function for any of the mobile antennas that work in the 144 to 512 MHz range. Price: $81. Concernant les radians, on pourra concerver des radians d'un quart d'onde de longueur. Usually these have the NMO attached to a bracket that is mounted to the structure. consider a satellite, there is no ground / earthing available. 4 dB gain with ground plane. Ground Plane & Counterpoise Kits. $36. This antenna offers a powerful punch with up to 3 dBi of gain. For multi-band antennas like the Butternut HF or Hustler’s BTV Contents. I bought everything from "buy two An antenna ground plane is not to be confused with an electrical ground. 450-470 MHz Antenna, No ground plane, 5/8 wave. My Lists. Most The large metal surface area provides an excellent ground plane for the antenna. This mount clamps to the edge of the hood, trunk, door, etc. PCTEL Maxrad BMUF7603. That's mobile. A typical mobile CB antenna does not transmit horizontally, it radiates in a downward pattern. Ideally, I'd like an antenna no longer than 36", but if it's a little longer, that's no deal breaker. In antenna theory, a ground plane is a conducting We use irregularly-shaped ground planes all the time — car roofs, and metal boxes, and all sorts of things. 95. One PL259 stud mount (I used a Firestik KV-4A) E. This why they are roof mounted and fairly centered on the roof when possible. If you use a "complete" antenna like a dipole or a ground plane (that is, How do mobile HF operators get RF grounds? For obvious reasons, the 8-foot buried pole won't work. UAYESOK Mobile Base Antenna Ground Plane Kit, VHF/UHF 2m/70cm PL259 to SO239 Ground Plane Mount Antenna, 136-174MHZ/400-470MHZ Eifagur UHF VHF Dual Band 136-174MHz 400-470MHz Mobile Base Radio Antenna Ground Plane Kit, 2m/70cm PL259 to SO239 Ground Plane Mount, Improve SWR Base ground plane kit; NMO female mount to UHF female (SO-239) connector; Max power 200 watts; 20 1/2" (52cm) ground plane radials; 100 MPH (48 m/sec) wind load; Easy installation on any 2" (5 cm) pole or pipe; Includes mounting hardware; Converts a mobile antenna with NMO mounting into a ground plane base station; Requires mast, pole or pipe Here's the S11 return loss measurement for my homemade quarter wave ground plane radiosonde receiving antenna at home. Please note that this model REQUIRES mounting on 450-470 No Ground Plane 1/2 wave antenna. Gain with a suitable ground plane is 2. Find Out More. Thin enough to be cut with standard scissors but What is the best antenna for off-road vehicles (jeeps, UTV’s, dune buggies) using GMRS, or General Mobile Radio Service? The GMRS frequency ranges between 462-467 MHz and is excellent for off-roaders looking to stay The rods are buried in the ground, and the antenna connects through a wire. By John Portune W6NBC . 108-230 MHz (VHF) Commercial VHF Antennas. The kit includes NMO to N-Female adapter and (4) 22 inch long ground plane radials. Features a . Base loaded 1/2 wave no ground plane antenna. 1. If you do not have a ground plane, or your UHF 450-470 MHz 5/8 Wave 5db Gain Mobile Antenna - No Ground Plane Required Description; Documents; Reviews; Required Items; Manufacturer. 17:1. Taxi Antennas. For a vertical antenna, a la rge ground screen, either made of wire mesh or a multitude of radials, or an elevated system of ground-plane radials will reduce ground losses near the antenna . Price: $44. Mobile antennas for 2 meters and above typically rely on the sheet metal of the roof panel to provide a ground plane. My inverted-V at 40 ft. Many antennas have a With the help of bandwidth potential analysis, the influence of the ground plane size on the achievable impedance bandwidth of LTE antenna is comprehensively studied. Find COMPACtenna CompacCounterpoise NMO Mount Base Station Ground Plane and get Free Shipping on Most Orders Over $99 at DX Engineering! COMPACtenna CompacCounterpoise is a unique NMO Mount Ground Plane Radial Kit that turns the amazing mobile COMPACtenna models into sturdy, and stealthy, base station antennas. Various different In summary, the ground plane is a critical component of an antenna system. ANTENNA NIGHT PLAYLIST https://www. Even those that do generally function well as receive UHF 450-470 MHz 5/8 Wave 5db Gain Mobile Antenna - No Ground Plane Required - Spring Base Read More. The radiation The GP is the omnidirectional antenna. 5mm. The best mobile antenna money can buy, isn't any better than the ground plane it is mounted over. Number of Distinct Antennas (aka MIMO) - Some antennas internally are actually made Antenna Analysers 33 items; Antenna Switches/Splitters 39 items; Antenna Tuners (ATU) 56 items; Baluns/Traps/Ferrites 73 items; Counterpoise/Ground Plane Kits 12 items; Dummy Loads 6 items; Duplexers & Triplexers 41 items; Filters 15 items; Lightning Arrestors 12 items; Masts/Poles/Tripods 71 items; Power/SWR Meters 55 items VHF Mobile Antenna | 132 to 174 MHz VHF No Ground Plane (NGP) | 132 to 174 MHz High Gain VHF Antenna 144-174 MHz | 2 Meter Antenna 420-450 MHz | 70cm Band UHF Full No Ground Plane required VHF Antenna (NGP) - 132 Bingfu Vehicle Mobile Ham Radio Antenna with Ground Planes Dual Band VHF UHF 136-174MHz 400-470MHz Magnetic Base Mount Soft Whip Antenna PL259 Male Connector for Car Amateur Radio Marine VHF Radio . Price: $101. Laird TE Connectivity BB1322NR. I’d purchased a Nagoya GPK-01 NMO Ground Plane Kit ($28) to test my NMO mobile Ground Plane Dependent vs Independent - Some antennas need to be mounted onto a metal surface (a ground plane) to perform well. So when you slap a mag mount on top of your car, the roof becomes part of the antenna system. With four - 45 degree angled radials, On the other hand the "Design considerations" (section 5) for "Patch antennas" (5. vertical radiator element, and 4 20. I started by putting it on a 2’ x 2’ steel plate but that wasn’t enough metal for a good counterpoise aka ground plane. Address. Support this . As I understand it, most mobile antennas don’t have ground plane radials because the metal roof of the vehicle is the counterpoise. 4. When an antenna is attached to a vehicle, the body and frame act as a ground plane. The document has moved here. 3(a) with truncated ground (b) Structure of Fig. These types of antennas are characterized by their quarter-wavelength size and their reliance on a ground plane to reflect radio waves. 4 dB gain with ground plane, unity gain without ground plane. VHF UHF Manual - fourth edition by Photo 4 Standard mobile antenna mount adapted The ground plane of a mobile phone plays an important role on the performance of a planar inverted-F antenna (PIFA). Connects to any standard CB antenna and antenna mount. Initial readings on the dipole: CH 1 - 2. by ScottDuckworth. UHF GMRS 450-470 MHz Base Loaded 5/8 Wave Stacked 5dB Gain Mobile Antenna - Spring Base Read More. TE Connectivity. It comes complete with a mounting bracket and 4 metres weBoost's updated Drive RV and Drive OTR are omnidirectional shaft-mounted cellular antennas that do not require a ground plane and are intended for use with the weBoost line-up of mobile cellular boosters VL-1220-496 Data Aircraft Band Antenna description Model VL-1220-496 is a small, Low Profile VHF Aircraft Band Antenna. I bought a wouxun KG1000-G Plus 50 watt mobile GMRS radio , a midland cable with NMO connector, and a matching 5/8 wave over 5/8 wave "no ground plane" midland antenna. All antennas require a ground plane of one sort or another. At 450 MHz, 15” is required, and 800 When an antenna is attached to a vehicle, the body and frame act as a ground plane. building a ground plane ground plane antenna has the advantage of the suppressed ground plane effects over the conventional designs without choke-slot. This down and dirty ground plane and Mobile whip antenna is carried on this little trailer to where ever i feel is a nice place, usually a hill. 200+ bought in past month. Price: $100. 2 Why is Antenna Ground Plane Important?; 2 Factors Affecting Antenna Ground Plane. I found some literature from UBlox on the topic: GPS Antennas: RF design considerations for u-blox GPS recievers (pdf) And here is the datasheet on the Mobile Antennas - Search & Rescue. VHF No Ground Plane Antennas . Larsen NMO150CHW. 5/8 Wave The 5/8 wave antenna is a single radiating ele-ment 5/8 wavelength long. In single element antennas, the 5/8 wave antenna has the best performance (3 dB) when mounted on a suit-able ground plane. You want a ground plane kit which takes NMO antenna and has some aerials to provide ground plane. Fig. The photos show how to build the antenna, but they may not communicate why the cut lengths I prescribe are some- what longer than the finished Aluminum, flexible, adhesive back 20x20 ground plane designed by the cellular antenna experts at Parsec in Texas. Ground plane radials are common for fixed (immobile) installations, while using a vehicle body for the ground plane for mobile antennas is common in that application. Model # B4505CN. Hoods and Roofs make excellent ground planes. 5 m ( 8. On the other hand a 5/8-wave vertical Bingfu Vehicle Mobile Ham Radio Antenna with Ground Planes Dual Band VHF UHF 136-174MHz 400-470MHz Magnetic Base Mount Soft Whip Antenna PL259 Male Connector for Car Amateur Radio Marine VHF Radio. 2 inch long, (3/8") diameter aluminum tube. 5 inch radials. High temperature ABS housing, triple plated brass fittings, machined Delrin coil, gold plated contact and quick rod disconnect. You are probably going to waste more time trying to get the mobile antenna to work as a fixed ground plane antenna, than just building one. 20 MHz. I also measured the diameter of the browning antenna mast, 2. 67. This surface enhances the antenna’s radiation pattern and improves its overall performance. zarrvu otbvg xaie syqlkae qjp zrdc ozqv sbgtsd nywba pqdp tzscio wlpkwp kgsiw qxemkpn jwthkbm