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<!DOCTYPE html> <html data-wf-domain="" data-wf-page="65202cdcecd03e000e904574" data-wf-site="6298fcd2f4f19ac116317fe8" lang="en"> <head> <!-- Last Published: Mon Mar 25 2024 21:28:24 GMT+0000 (Coordinated Universal Time) --> <meta charset="utf-8"> <title></title> <meta content="" name="description"> <style>@media (max-width:991px) and (min-width:768px) {:not(.w-mod-ix) [data-w-id="e8e9fb8a-1448-f43d-2141-e4edd3d27d30"] {height:0PX;}}@media (max-width:767px) and (min-width:480px) {:not(.w-mod-ix) [data-w-id="e8e9fb8a-1448-f43d-2141-e4edd3d27d30"] {height:0PX;}}@media (max-width:479px) {:not(.w-mod-ix) [data-w-id="e8e9fb8a-1448-f43d-2141-e4edd3d27d30"] {height:0PX;}}</style> <style> img { image-rendering: -webkit-optimize-contrast; } </style> <style> .post-short-description { display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; text-overflow: ellipsis; } .blog-post-body span, #references { display: block; height: 110px; margin-top: -110px; } .blog-post-body blockquote span, h6 span { font-size:16px; margin-top: 10px !important; height: auto !important; } .quiz-inner-img-wrap > img { margin: 0px; } h6 span { display: inline !important; } #blog-cold-desktop { display: block; } #blog-cold-mobile { display: none; } .related-post-description { display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; text-overflow: ellipsis; } .blog-post-body p { font-size: 16px; line-height: 24px; } #reco-article-wrap { border-bottom: 0px solid black; } . { border-bottom: none; } a[href='#references'] { border-bottom: 0px solid #142b38; } .blog-post-body h1 > strong, .blog-post-body h2 > strong, .blog-post-body h3 > strong, .blog-post-body h4 > strong, .blog-post-body h5 > strong, .blog-post-body h5 > strong { font-weight: 500; } .toc-h2 { margin-bottom: 10px; } .toc-h1 { margin-bottom: 20px; } .thick-blog-cta-text { font-weight: normal; } #blog-shop-bottom, #largeblogctatop { border-bottom: none; } .mobile-cta-blog { display: none; } @media only screen and (max-width: 767px) { .buy-test-block { display: block !important; } .blog-cta-discount { display: none; } .mobile-cta-blog { display: none; } #blog-cold-desktop { display: none; } #blog-cold-mobile { display: block; } .w-richtext figure { max-width: 100% !important; } } @media print{ .author-image, .image-wrapper, .blog-article-cta-wrap, .related-blogs-section, .blog-sticky-cta-wrap, .social-links-blog-left, .subscription-left-wrapper, #blogctatop, .container-2, .blog-large-cta-wrap, .sidebar, .new-blog-hero-img, .buy-test-block, .toc-wrapper, .footer, .nav-bar, .article-thumbs, #latest-posts, #blog-nav { display: none; } } </style> </head> <body data-w-id="5f0e0c5321d75dba3b4a1cde"> <div class="added-to-cart-modal-wrapper"> <div class="added-to-cart-modal"> <div>No ground plane gmrs antenna. This 32-inch whip antenna quadruples signal output.<span class="primary-button small-btn modal-small-btn w-button"></span></div> </div> </div> <div class="progress-bar-wrap"> <div data-w-id="17a5e2a0-1c59-9dd5-a99f-4f027a9f0ef4" class="progress-bar"></div> </div> <div id="blog-nav" class="blog-nav-wrapper"> <div class="div-block-42"><br> <div data-collapse="medium" data-animation="default" data-duration="500" data-easing="ease-out-quint" data-easing2="ease-in-expo" role="banner" class="navbar w-nav"> <div class="search-container"> <form action="/search" class="search-2 non-mobile-search w-form"><input class="search-input-3 w-input" maxlength="256" name="query" placeholder="Find a health test..." id="search-2" required="" type="search"><input class="nav-search-button w-button" value="" type="submit"><span class="link-block-4 w-inline-block"><img src="" loading="lazy" alt="" class="image-83"></span></form> </div> </div> </div> </div> <div class="section blog-hero-section"> <div class="new-blog-hero-block"> <div class="div-block-139"> <div class="breadcrumbs-bar"><span class="breadcrumbs-link current-category"><br> </span></div> <h1 class="blog-title">No ground plane gmrs antenna. The ground plane would remain the same.</h1> <h2 class="blog-dek w-condition-invisible w-dyn-bind-empty"></h2> </div> </div> </div> <div id="top" class="hide"> <div style="opacity: 0;" class="back-to-top-button-container"><span class="button-circle w-inline-block"><img src="" alt="" class="button-icon"></span></div> </div> <div class="blog-hero"> <div class="content-wrapper-3 blog-content-wrapper"> <div class="blog-content-block"> <div class="container cc-center blog-content"> <div> <div class="blog-top-content-wrap w-clearfix"> <div class="author-wrapper"> <div class="author-block-head"> <div class="author-section-p"><img loading="lazy" alt="Stephanie Eckelkamp" src="" sizes="(max-width: 479px) 35px, 45px" srcset=" 500w, 800w, 1000w" class="author-image"></div> </div> </div> </div> </div> </div> </div> </div> <div id="w-node-_0efbd29e-bb0c-be69-9c57-20f6aad631b3-0e904574" class="div-block-148"> <div class="toc-wrapper toc-container"> <div id="blog-toc" class="toc-link-left desktop-toc"> <div id="table" class="toc"></div> </div> </div> <div id="product-sticky" style="background-color: rgb(234, 218, 169);" class="blog-sticky-cta-wrap"> <div class="blog-sticky-cta-content"> <div data-w-id="f23f500f-b7d3-2e0d-1837-60357b910027" class="sticky-blog-cta-top"> <div class="div-block-150"> <div class="div-block-151"> <h2 class="sticky-blog-cta-title">No ground plane gmrs antenna. Mounting ideas appreciated too.</h2> <h2 class="sticky-blog-cta-title w-condition-invisible w-dyn-bind-empty"></h2> <div class="sticky-blog-cta-carrot"><img src="" loading="lazy" alt="" class="image-86"></div> </div> <div class="sticky-blog-cta-content">No ground plane gmrs antenna. Feb 9, 2021 · 172. The radiating element is a quarter wave (λ/4) and the radials are 12% longer. Measuring a total of only 14. 4, Maximum Power 200 (Watts), Whip Length 49" Read More. Feel free to Great idea to add the ground plane to adjust the SWR. 144-174 MHz 2. Category. Color. Antenna also operates without a ground plane. This antenna does not require a metal ground plane. Use the fender mount and find a good 1/2 wave GMRS antenna that doesn't require a ground plane. Gain (dB) 5, Maximum Power 200 (Watts), Whip Length 31" Read More. FREE 1 to 3-Day Delivery on Orders $119+ Details Hello, Sign In My Account B1442NS. UHF NMO Antenna. Arcadian also offers related wireless gear including antenna mounting brackets, coaxial cable, enclosures, connectors and cable assemblies. Feb 13, 2019 · Rugged Radios Antenna for Two Way Radio Business Band UTV Car Truck – Features Standard NMO Mount (Non-Ground Plane, VHF 1/2 Wave Whip Antenna) Visit the Rugged Radios Store 4. Mounting ideas appreciated too. 6 out of 5 stars 213 ratings Aug 1, 2023 · I used a RigExpert Stick Pro, and had the antenna centered on the roof of a 2007 Chevy Silverado. Sep 24, 2022 · Both would be on the same 8" square ground plane on my Jeep. 104. Permanent N Female connector base. They are easy to build, often using a chassis-mount coax connector. Just don't know what antenna to get for him. I finally got around to testing a couple of my mag mount 70cm or 440MHz ham band antennas on my Wouxun 805G GMRS. Simply order, mount, and ride! VHF-1/2 Wave Spring Antenna Data Sheet. height 33". Jul 20, 2017 · Whether stationed at home or deployed in the field, this ground plane kit can face strong winds and harsh weather without compromising your communication network. 136-174 MHz, Gain (dB) 4. #10. Manufacturer. TE Connectivity mobile antennas and accessories are the world standard for reliable, high performance communication parts Nov 22, 2023 · Thankfully, it's a pretty easy modification to make - just place a piece of metal on your roof, and mount the antenna to that. 40:1. Mar 22, 2017 · The difference between a 1/4 wave ground plane and 1/2 wave dipole is on the order of a 1dB or so. 600 MHz - 1. Price: $56. 450-470 MHz Antenna, No ground plane base loaded 1/2 wave antenna with spring. This is a true unbalanced antenna, with a feed impedance of around 50Ω and therefore a great 6/8 Wave Wideband Antenna, Base loaded 4. Includes a powerful magnetic NGP (No Ground Plane) antenna mount, a UHF antenna with threaded NMO base, and 13 feet of coax cable. Warranty. 450-470 No Ground Plane. Product Condition. The Phantom series offers ultra-rugged ABS construction Sep 12, 2022 · The BR-6140 is a half-wave dipole, having ~2. 3 and the antenna is tuned for approx 465. Dec 20, 2019 · A 32” UHF antenna is almost certainly a high gain antenna and requires a ground plane. Midland does make a 6dBi version. 4 db gain. Base loaded 1/2 wave no ground plane antenna. Antenna is can be tuned and uses an NMO mount (3/4" hole). More won't hurt. TE Connectivity. Whip Material - 17-7PH Stainless Steel. Even mounted on top of a metal trashcan lid. was $114. 5mm) tapered whip. 5". prcguy. The "no groundplane antenna" claim is rubbish. 5 Inch UHF Whip Antenna with Black NMO Base - 450-470 MHz. The downside is the cost of the mount ($359!) and the fact that I'll only have half a ground plane (forward-facing essentially). High performance mobile GMRS antenna. I always use NMO style antenna mounts on my rigs, that way I can swap out different antennas or radios on the same mount and coax. B4502N. Generic (hence the 300MHz) vertical half-wave dipole in free-space: Laird TE Connectivity B4505CNS. 41" Replacement VHF Whip Antenna (PAIR) $20. 4 dB gain, Gain (dB) 2. Price: $29. It is mounted using a Diamond K400SNMO mount. This antenna offers a unity gain (0 dBd) for maximum vertical beamwidth. A piece of coax might have a loss of 1. 9. 4, Maximum Power 200 (Watts), Whip Length 30. 1/4 wave performs very well as a general purpose antenna in GMRS. No Ground Plane Whip Antenna UHF radios we sell. 2 out of 5 stars 67 Jul 23, 2013 · Yes. No Ground Plane Mobile Antenna. Sep 3, 2022 · A CB antenna “wanting” a 1/2 wavelength across solid ground plane of 18ft diameter is much more of a challenge than a UHF GMRS antenna only “wanting” a 12in dia ground plane. Jul 23, 2020 · 1. There is no metal ground plane to sit an antenna upon on the roof. 0 on the repeater channels). 25", the POINT5 antenna packs big performance in a small size. Base Style - NMO Style. Optimized Signal Clarity. On 3/19/2021 at 3:29 PM, SteveC7010 said: Ground plane needs to be 1/4 wave length in all directions. Manufactures typically spec the usable bandwidth of their antennas at the 1. Oddly enough, even the 1/4 wave antenna is in effect a 1/2 wave antenna in that the ground plane (or ground radials) effectively satisfy the function of the missing 1/4 wave portion. Usable Bandwidth. or Diameter of ground plane: Half-wavelength in feet: 468 / frequency in MHz. A quarter wave UHF mobile antenna 6 inches long and about 1/16" diameterwas broad banded enough to cover from 440MHz up to 467MHz and still keep the SWR really low. The RFMAX RBC-450-5-NS is a UHF whip antenna with an NMO base and NO metal ground plane required. Length ; 2' 3' 4' MXT115 MICROMOBILE TWO-WAY GMRS RADIO. (233) $59. For use with NMO style mounts. 95 Arcadian, Inc. 33 inches long. I have one mounted on the left side of the hood on my Toyota Tundra. A quarter wave, unity gain spike at GMRS freqs is about 6” and requires a ground plane of about 6” in all directions. 17-7PH Stainless steel "Kulrod" finish. Please let me know what's available, as I've Feb 3, 2021 · The short little midland antenna does need a ground plan, where as some others can benefit from one, but do not need them to achieve acceptable performance. The FG4500 from Laird (formerly Antenex) is a heavy duty, omni-directional fiberglass UHF base station antenna operating at 450-470 MHz, providing Unity/ 2. This antenna offers a powerful punch with up to 3 dBi of gain. Service Branch. When maximum range is your goal, the Midland MXTA26 6DB gain whip antenna is the perfect choice. Model #. Probably this has already been discussed over the years. 14dB increase of radiated power compared to a 1/4 GP. Regular price $15. Functions on any frequency between 406-470MHz, including GMRS. Compatible With Key Features. This omnidirectional antenna ofers 5 dbi gain and 100 watts max power and operates in the 450MHz - 470MHz range. The correct length of coax for an antenna is the shortest length needed to get from the antenna to the radio. ‘how does it work’)? Also, does such an antenna require a special type of cable? There's a whole lot of theory behind it, I'm sure someone will try to explain it. May 7, 2020 · Any gain from antenna design could easily be lost by choose the wrong feed line or being cheap about it. The Diamond NR770HNMO is one good example of a no ground plane antenna. 5 Year. 4. 5. A disk 12 inches across with your NMO mount in the center will give your antenna a suitable ground plane for GMRS. On 12/19/2023 at 8:04 PM, Guest JohnB said: I have a RV that is constructed like a fiberglass egg or a boat hull. Will the ground plane mount kit purchased improve the performance of a antenna of this type FG3648-BL - Firestik 3' No Ground Plane Single Mirror Mount Antenna Kit- Blue. Buy Now Request A Quote. No. 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. Frequency (MHz) 144-174 (Tunable) Product Narrative. 5 MHz. No Ground Plane Required. Price: $42. 95 May 11, 2023 · I would use my 1/4 wave, 6" tall antenna (I don't want to risk hitting the antenna on my garage door). Metal ground plane required. Since it appears you mounted the antenna bracket on the rear of your truck; why not electrically bond the antenna bracket to the roll cage with a short jumper The Browning BR-450 is a UHF NMO antenna with a maximum power handling of 200 watts. 4, Maximum Power 200(Watts), Whip Length 30. 5 miles to 3 miles increase is 20% which means you have to increase the radiated power 40%. Molded high heat ABS mounting base features silver soldered connections, gold plated push pin contacts and o-ring. Brands. The Firestik NGP replacement antenna is designed to be used ONLY with other NGP (no-ground plane) kits and coax cable. With that caveat, let’s see how they compare: Comparative patterns of 1/2 wave dipole, 5/8 wave over horizontal radials, and 1/4 wave ground plane over sloping radials. com. 450-470 MHz Antenna. LAIRD's ETRAB4500N 450 – 470 MHz Phantom Elite UHF antenna NGP, 3 dB MEG, black, 150 W. Requires antenna mount kit (sold separately). Antennas. UHF 2dB gain roof mount antenna, e/m-Flex® spring 380-520 MHz (tunable range) No Ground Plane Required. Feb 10, 2022 · 20527. 17. Description. 450-470 NMO Mobile Antenna, 1/2 wave collinear antenna. Nov 28, 2023 · The 1/2 wave antenna is a center fed dipole (it can be fed off-center with the same result), and the 1/4 wave ground plane uses 4 sloping radials. The 5/8 wave should outperform both the 1/4 and 1/2 wave antennas if it has a good ground plane because it has more gain. For example, the GMRS band is right around 462 MHz. Complete No-Ground CB Antenna System. 20 MHz. Posted May 15, 2022. to/3HbC4V6--- Learn how you can "Join" and support me and my channel, here: Jan 8, 2023 · Ideally, you want a minimum of 1/4 wavelength radius. To learn more, see our guide to using no-ground plane CB antennas; Filter Products. 4, Maximum Power 200(Watts), Whip Length 15" UHF GMRS 450-470 MHz No Ground Plane Antenna TE Connectivity BB4502NS | The Antenna Farm Mar 22, 2019 · Back when I was active on GMRS, I'd use a commercial UHF radio with GMRS and 70 centimeter amateur radio frequencies programmed in. Molded high heat ABS mounting base feature EM Wave, Inc. Using a cookie pan as a ground plane. The Laird 15 Inch UHF Whip Antenna features an elastomer spring that provides increased flexibility, better shape retention and eliminates electronic & road noise when compared to stainless steel springs. offers a wide range of GMRS (General Mobile Radio Service) antennas that work with licensed GMRS radios and repeaters offered by Motorola, Midland, BaoFeng etc. 2. Posted December 20, 2023. Then I see 1/4 wave vs 1/2 wave etc. Requires NMO mount and coax. Jul 4, 2021 · However, 1/2 wave antennas have been determined to be the clear winner. 5, Maximum Power 200 (Watts), Whip Length 35. Details. Black Base/Stainless Whip. Molded high heat ABS mounting base features silver soldered Jul 24, 2021 · That means you might get away with an antenna the works over the range of two services, like Ham 70cm and GMRS, or Ham 2M and MURS. The through the glass antennas that a few people I know that tried them weren't happy with the results. A CB antenna in the middle of an extended van roof seems like overkill but it’s actually a fraction of the gold standard 18ft diameter that it wants, but any CB Measuring a total of only 14. Price: $43. 450 - 470 MHz, 2. Measuring a total of only 14. Premium coil with metal base and stainless steel . Frequency (MHz) 144-174 (Tunable), Usable Bandwidth 5 MHz, Gain (dB) 2. GMRS (450-470 MHz) Mobile / Vehicular Antenna. 01 (feet) 1. What atnenna should we get him if he has an aluminum roof rack and no ground plane. 468 / 462 = 1. 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. 5” Antenna NMO Connection for Midland Car Truck Ham Radio Amateur Mobile Radio Two Way Radio Marine Boat VHF Radio 4. Model: Firestik FG4648B. New. 5:1 even with a very undersized ground plane. High temperature ABS housing, triple plated brass fittings, machined Delrin coil, gold plated contact and quick rod disconnect. Posted February 2, 2021. A shock spring model is available for rough applications. The Rugged Radios GMRS and UHF No Ground Plane NGP Tuned Whip Antenna is a product with universal fitment with some adaptation needed. Adaptable – Mates with all 1-1/8”-18 thread mounts, including 3/4” mounts. It is for 2 meter, 70 cm. 4 dB 1/2 wave non-ground plane omni and my VSWR is 1. Mar 21, 2023 · What is the theory of a ‘no ground plane’ (required) antenna for transmitting on GMRS frequencies (i. From 400 MHz up to 500 MHz (wanted a really large image of what it was doing) it stays under 1. Spring loaded base would be a must if I go taller. In reality, a 1/4 wave without a decent ground plane will "underperform" a 1/2 wave. Feed line loss gets pretty bad the higher up you go in frequency. The 1/4 is working fine, just nit-picking. 0-1. I would also guess you don't want to drill any holes in the body either. $115. 5. Wondering if the added height above the roof will be of much benefit. 7k. Mounting closely over a ground plane is going to distort the radiation pattern (probably sending most of the energy up into the sky rather than horizontally). 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 . Dec 5, 2023 · First of all, find the metal. 67:1. 99. Probably would have been much better with a larger ground - like on an actual car. Whether you belong to the public safety, transportation, utility, or military mobile sectors, RFMAX Base Coil Antennas are ideal for a wide range of applications. The 1/2 wavelength antenna does not require ground plane, and it will be around 12" tall. You can have just east/west and north/south radials like a base antenna but for a vehicle it’s more practical to use a disc of metal. All Frequency Ranges. 5/8 antenna will also work without ground plane, but it's not going to be more efficient (if mounted without good ground plane), and will be a bit Nov 16, 2023 · I'm not worried as much about cost as I am having the best long range NMO no ground plane GMRS antenna I can get, prefer at least ⅝ wave. Gain (dB) 5. Eliminates vehicle “shadow” effect – with elevated feed point. *Note: This antenna DOES NOT ship with mounting hardware. Ham/GMRS Callsign. Product Description. These antennas are perfect for building a custom NGP system or replacing a damaged NGP antenna. Power (watts) - 120. Antenna theory is Mar 21, 2022 · Antenna theory is fascinating and mysterious. Established in-market presence and innovative design techniques, with verified product specifications May 14, 2022 · 2. On GMRS, 1/4 wavelength is about 6 inches. Race Radio. 100" (2. For antennas with a design construction of 1/2 or 5/8 wavelength Dec 27, 2022 · There is no real difference in performance between a 1/4 wave and a 1/2 wave if the 1/4 wave has a decent ground plane. Midland MicroMobile MXTA26 6dB Gain NMO Antenna Nagoya GPK-01 NMO Ground Plane Mount Kit. BB4502N 12. Arcadian Inc. Feb 10, 2022. Jan 30, 2023 · You can get your very own Nagoya Ground Plane Kit for only $35 here: https://amzn. Nov 16, 2023 · I'm not worried as much about cost as I am having the best long range NMO no ground plane GMRS antenna I can get, prefer at least ⅝ wave. 1 Year. What it actually does is use your coax for the groundplane which is why it has to be a set length. Feb 2, 2021 · 2. This unit is a White 'Phantom' style Omni-directional antenna with NMO-mobile mount operating at 450-470 MHz range. Rhino rack has antenna mounts, I've gotten him a link to a tram 17' NMO antenna cable / mount. Save $10. UHF GMRS 450-470 MHz No Ground Plane Antenna, 5/8 wave base loaded antenna. Heavy duty 1/2 wave no ground plane antenna. This antenna does NOT require a metal ground plane. Designed specifically for GMRS and UHF frequencies, this Rugged Radios GMRS and UHF No Ground Plane NGP Tuned Whip Antenna ensures clear communication even in remote locations. Please note that this model REQUIRES mounting on metallic ground plane for best performance. Much better than the Nagoya 200C (which I returned because two separate 200C antennas had SWR above 3. Please note that this model DOES NOT REQUIRE mounting on metallic ground plane for best performance. GO FURTHER VHF antenna provides excellent performance in a variety of conditions and mounting No ground plane. We recommend the ROSA-HDM1 mounting bracket*. Although using a ground plane is always better, this NGP antenna performs This calculator can be used to design a Quarter Wave Ground Plane antenna, with radials. I'd like to use a low profile GMRS antenna (Laird or similar type). Lairds’ongoing commitment to refinement in mechanical and electrical design Sep 17, 2011 · Indianapolis, IN. PCTEL Maxrad. Compatible with GMRS repeaters. I've got a friend we are trying to setup an mxt115 in his rig for comms on the trails. Ground plane is imaginary, and basically means that your RF signal won’t go down, so all the physical energy goes up and outward. This 32-inch whip antenna quadruples signal output. Aug 23, 2022 · 13. 95. TE Connectivity mobile antennas and accessories are the world standard for reliable, high performance communication parts. 15dBi (0dBd) gain. Stainless steel whip with a base loaded coil. . Ideally, I'd like an antenna no longer than 36", but if it's a little longer, that's no deal breaker. 1, Maximum Power 200(Watts), Whip Length 54" Read More Price: $36. Any time an antenna needs a specific length of coax to work, walk away. $65. Availability: In stock. 462. The hood (ground plane) is behind the antenna. Specs. SWR on simplex was 1. N7XQP. Practically most radios are OK up to a 2:1 SWR. Versatile Antenna Compatibility: The GPK-01 kit supports a broad range of UHF, HF, and VHF NMO antennas, covering frequencies from 0 to 1000MHz. First band is 70cm, second narrowed band is 64cm, red line is center of GMRS. Generally it consists of a quarter wave vertical radiator connected to the center of the coax feeder, and 4 radials, often sloping downwards, that are also about a quarter wave long. An antenna's ground plane should be at least 1/4 the wavelength of the signal being broadcast for 1/4 Wave Antennas. Assuming all will screw onto the existing NMO mount. If your mounting location provides an adequate ground plane, you can save some money with our standard UHF whip antenna. Whip Length (@154 MHz) - 39. Dec 20, 2023 · 3. with no ground plane needed for 1/2 wave. Gain (dB) 5, Maximum Power 200(Watts), Whip Length 31" Mar 19, 2021 · Posted March 22, 2021. 5/8 Over 5/8 Wave. 1, on repeater channels was 1. 95 View. The durable and flexible whip can withstand harsh conditions while maintaining optimal performance and reducing the risk of breakage. 400-490 MHz | UHF/NO GROUND PLANE (NGP) UHF ANTENNA – Arcadian - ArcAntenna. Recently purchased a TRAM 1470 NMO ground plane antenna mount kit, which will be used to locate a GMRS antenna just above the roofline of my Jeep Wrangler. A half wave antenna is normally fed in the middle with a balun or some type of matching device (gamma match for a yagi driven element for example). For installations that have no metallic surface or suitable means for a ground plane. Posted February 9, 2021. Fire/EMS/SAR. LAIRD's TRA4500NP 450 – 470 MHz Phantom 3 dB low visibility white antenna. For your antenna placement, just make sure you’re getting a good ground plane; I would highly recommend a Midland hood mount if you’re set on not using a mag mount. Also, I have some Part 90 freqs (461-469 MHz) programmed in my radio but, I tuned for GMRS. May 3, 2021 · Radials / radius: Quarter-wavelength in feet: 234 / frequency in MHz. Posted August 23, 2022. Price: $84. is a master stocking distributor of ANTENNAS for Cellular M2M, UHF RFID, Public Safety/LMR & iDAS. This mount clamps to the edge of the hood, trunk, door, etc. I'll spend most of the time on the 70cm and GMRS frequencies, so 440-470 MHz. The Laird B4505CNS is a 32 inch chrome base loaded mobile UHF whip antenna with NMO base and spring. Frequency (MHz) 450-470. Product Narrative. Measuring a total of only 12. e. 5" Read More Price: $60. And if you do have sufficient metal PCTEL Maxrad MHB5802S. Location: Butte, Montana. Mounts. I think the rod ended up being cut at about 10 3/8" and fine-tuned/adjusted accordingly. Jan 19, 2024 · Any recommendations for a mobile half wave (no ground plane) GMRS antenna I can install on my spare tire carrier/rear gate? Not concerned so much about cost, prefer better performance. 5", the POINT5 antenna packs big performance in a small size. Simply cutting a 1/4 wave for 2-meters down to a half wave on the GMRS frequency would present a horrible match at the base of the NMO mount. All the major antennas are pretty equal for GMRS in my experience: Midland, Tram, Larsen, Nagoya (counterfeit problems with Nagoya Sep 3, 2019 · Anina 3DB Gain GMRS Antenna NMO Mount, Dual-Band UHF VHF 136-174MHz 400-470MHz, 3. Feb 3, 2021 · Easy, you can use an NGP or No Ground Plane required antenna. This antenna is already pre-tuned (cut) for application. Molded high heat ABS mounting base features silver soldered The GMRS-POINT5 / UHF optimizes your GMRS radio by delivering the best signal performance throughout the programmed channels. Heck you could go get a cheap chunk of thin alum sheet from Home Depot and done. 5/8 over 5/8 wave antenna. Gain (dBi) 3, Maximum Power 200(Watts), Whip Length 12" Read More When you click read more, yes, that page does not say it. 00. I do have a way to attach a mast on the rear spare tire mount. 1dB gain antenna. Dec 28, 2018 · The need is a no ground plane dual band antenna that's capable of transmitting across all 2M, 70cm, and GMRS frequencies. Ubbe said: The 2. 5dB 1/2 No Ground Plane with Spring Base. Sep 19, 2011. Base Loaded Chrome Coil Rugged- No Ground Plane Required With Spring, 33" Tall at Lowest Frequency, 5dBi gain, RBC-450-5-NS. 15 dBi of linear gain. Regular 039374004537. Apr 12, 2022 · With regards to antenna, any 1/4 wavelength antenna will work better and will not be too tall (about 6"). 450-470MHz. 2db at 144mhz but at 470 it might be 6-7 db loss per 100 feet. 5 dBd Gain. There are usually four radials, three being a minimum, but you could use up to six. The GMRS-POINT5 / UHF optimizes your GMRS radio by delivering the best signal performance throughout the programmed channels. An ideal 1/2 dipole antenna will have a 2. Nagoya NA-701G FRS/GMRS Antenna. Includes a powerful magnetic NGP (No Ground Plane) antenna mount, a VHF 1/2 Wave antenna with threaded NMO base, and 13 feet of coax cable. It reads Laird TE Connectivity B4503 UHF GMRS 450-470 MHz No Ground Plane Base loaded 5/8 wave antenna and load coil. Hoods and Roofs make excellent ground planes. This unit is a Black 'Phantom' style Omni-directional antenna with NMO-mobile mount operating at 450-470 MHz range. A 15” UHF spike would more likely be a half wave, no ground plane antenna with low gain, probably 2. No metal ground plane required. No ground plane 1/2 wave antenna. 6 4. 4 db or so. No ground plane, 1/2 wave base loaded antenna. Gain (dB) 2. Maximum installation flexibility – Does not require a ground plane. Have several of the Comet CP-5NMO hood edge mounts (check to makes sure it works with your hood edge profile) and love that they are Jan 29, 2020 · Tested this antenna on a BTECH GMRS-50V2 with a Nagoya RB-50 magnetic base attached to a 12x24 inch piece of sheet metal in my garage. Order NMO Style Mount separately. 17-7ph tapered stainless steel. Nothing under 5db gain and it should also be able to do 2m. Whip Material. Rugged – Stainless steel shock spring included on all models. GMRS High Gain Antenna. A one foot square chunk of metal on the roof of a motorhome falls under the catagory of "lack of sufficient ground plane mass". The Phantom series offers ultra-rugged ABS const. The GMRS-POINT5 optimizes your GMRS radio by delivering the best signal performance throughout the programmed channels. Using an NGP antenna with standard coax cable will result in serious performance issues. The SWR was below 1. BB4502N. MSRP. For GMRS, that is a 6” radius around the base of the antenna. 00 (9%) Firestik FG4648B 4' No Ground Plane CB Antenna Kit - BLACK. 450-470. Good for trail leaders. 4. It also has a a SPRING base so that the antenna does Jun 1, 2021 · This is your answer honestly. "No Ground Plane" means the antenna does not have to be attached to a metal surface (such as a vehicle roof or larger body panel). Your bar might not provide enough of a plane. This omnidirectional antenna offers 5 DB of gain giving you the best range of all the GMRS antennas. Mount Type. 12 (inches) So as long as I plop my magnetic mount antenna in the middle of a piece of conductive metal at Sep 3, 2023 · I'm using a Laird B4502N 2. 21 $92. 4 dB gain with ground plane, unity gain without ground plane. Unity. It appears that you have added a roll cage you could have mounted the antenna directly to. Great for off-roaders, farmers, and more, this long-range antenna is designed with a spring at the base and a coil at the center. Works on RV's, Boats, Motorcycles, Cars, Vans Includes 2ft Black CB Antenna, 17ft Coax Cable and Antenna Mount. 5:1 SWR points. Since it's a fiberglass body you need an antenna that doesn't require a ground plane. 01 x 12 = 12. I own one and find that it does quite well. The ground plane would remain the same. A plus if it can do: 136-180 VHF • 219-250 VHF • 350-512 UHF • 700-960 UHF quad-band, with GMRS being the necessity. It is only about 6 inches tall and if you need a ground plane you only need to put a small area of metal under it to give it one. Bottom line, it's a half-wave vertical antenna with a matching circuit in the base. Antennas mounted on front bumpers work okay, but better rearward than forward. #5. But if you don't have at least 9 square feet of metal (3ft x 3ft), don't even fool with a GP set-up. $48. Molded high heat ABS mounting base features silver soldered connections, gold plated push pin contacts and O-ring. FG3648-BL - Firestik 3' No Ground Plane Single Mirror Mount Antenna Kit- Blue. From what I've found looks like for gmrs, a disc of metal 6 - 8 inches works, doesn't even need to be a disc just the equivalent surface area if odd shaped. 8" VHF. LTE and Cellular mobile antennas. Every antenna has a somewhat different requirement. Wire ground plane antenna for 20m, using materials from a portable dipole kit. MXTA26 6dB Gain Whip Antenna. Smoke, mirrors and magic. 2 Years. The Quarter Wave Ground Plane is a very common, simple, and effective antenna. 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