No ground plane antenna

The dimensions must not exceed 7m. Frequency to be recived = 22.5 Mhz (Wavelength is aprrox 15m) Bandwidth = 20Mhz Standard ground plane is of lamda/2 length, which will exceed our dimensions....FG3648-R - Firestik 3' No Ground Plane Single Mirror Mount Antenna Kit- Red $117.58 $94.06 FG3648-R - Firestik 3' No Ground Plane Single Mirror Mount Antenna Kit- Red Out-of-stock Save 20% FGX - Firestik No Ground Plane CB Antenna (Select Length & Color) $25.65 $20.52 FGX - Firestik No Ground Plane CB Antenna (Select Length & Color)No Ground Plane VHF Antenna. Item #: 1408. $ 64.99. Quantity. Tell us your frequency: Add to Cart. Description. Reviews. 2db Gain VHF 150-174 MHz Ground Plane Independent Antenna. Aug 24, 2010. #4. A half-wave dipole (horizontally installed) doesn't need any ground plane or counterpoise. As for other variations on the "half wave" theme, try it with and without. See what works better for loading, for signal reports, etc. Many antennas that technically don't NEED a ground plane or counterpoise do work better with it.Includes a powerful magnetic NGP (No Ground Plane) antenna mount, a UHF 1/2 Wave antenna with threaded NMO base, and 13 feet of coax cable. "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). Although using a ground plane is always better, this NGP antenna performs ...NGP (No Ground Plane), 1/2 wave base loaded antenna. Molded high heat ABS mounting base features silver soldered connections, gold plated push pin contacts and O-ring. "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). Although using a groNo-Ground-Plane antenna systems have a very specific purpose. They should be the system of choice when you have no other choice. When your vehicle has little or no metallic surface area for the antenna to use as its NEEDED counterpoise your decision process should be; 1. I just won't have a CB in my vehicle. 2.Jun 08, 2020 · Why use an antenna that requires a ground plane? 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 ... GMRS antenna mount 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. An exterior, properly mounted 6db (Midland or equivalent) antenna will have substantially better performance. www.jlwranglerforums.comThis shortened easy-to-build vertical, with no-radials, is made from surplus military camouflage poles. It has gain and wave angle comparable to a full-sized ¼λ ground plane antenna with radials . By John Portune W6NBC . I wanted high efficiency 40 Meter antenna with low-angle radiation. My inverted-V at 40 ft. performs well, but is "a cloud michael jackson tpb 1,301. calculation of the ground plane of patch antenna. If the frequency of the antenna working on is not so high,considering the purpose of using patch antenna,we should make the dimensions small as soon as possible.From the experience,set the ground plane 0.2*lamda lager than the patch is enough. Jan 9, 2007.The Laird B4502N wave antenna is a 450-470 MHz 1/2 wave antenna with 2.4dB gain and no ground plane. The advantage of a wave antenna... Learn More!TRAM 1499 CB Base Antenna, No Ground Plane, For All Applications - Newegg.com. Sold and shipped by: Radio Research Inc. $ 31.50. or. Buy in monthly payments with Affirm on orders over $50. Learn more. or. 4 interest-free payments of $7.88 with ⓘ. $13.00 Shipping ( restrictions apply)BOAT AND BASE HF CAPACITY HAT ANTENNA FOR 10-80 METERS. CAPACITY HAT ANTENNNA OVERVIEW. If you want a 100% American sourced 10-80 meter antenna from a U.S. company that is owned by an American, then this HF system is it. This is the perfect antenna for boat or base installations that do not have a lot of real estate or a ground plane. INCLUDEDGMRS 1/2 wave antenna No ground plane required This is the perfect GMRS antenna when you do not have a good ground plane on your vehicle. GMRS 1/2 wave antenna No ground plane required Only 10 inches long Requires NMO mount and coax.http://www.rightchannelradios.com/firestik-cb-antenna-110/ The Firestik LG3M2 and LG4M2 are both quality no ground plane CB antenna kits. We discuss the ki...Ground plane antennas are easy to recognize by their appearance. First off you'll notice the radiating element. This element is 1/4 wavelength long, or about 19 inches for the 2 meter band. Next up are the ground radials. a ground plane will often have three or four radials, each 1/4 wavelength long.No-ground plane CB antennas are required if you'll be using a CB with your motorhome or RV. Fast Shipping, 120% Satisfaction Guarantee! 2. I will use a ground plane (GP) system and suffer the possible consequences. 3. I will use a no-ground-plane (NGP) system and be able to use my CB. In short, the NGP system (we call it a system because the antenna and coaxial cable are a matched set that may not be interchanged with other non-Firestik NGP antennas and coax assemblies) is a ... Aug 10, 2008 · 12,361. Location. So Cal - Richardson, TX - Tewksbury, MA. Aug 12, 2008. #9. Most commercially made no ground plane antennas are end fed half wave with a matching circuit to make the high impudence end of the antenna happy feeding 50 ohm coax. Thanks to Bret of "Survival Comms" for this easy-to-make video on designing, making, testing, and using what he calls " The VHF/UHF folding ground plane ." According to Bret, this antenna has "broad bandwidth, great performance, simple implementation, and low cost.". Firestik LG3M2-W 3-Foot Firefly Cb No Ground Plane Antenna Kit White. 35. $8457. Get it Wed, Sep 21 - Thu, Sep 22. FREE Shipping. More Buying Choices. $82.99 (6 new offers) Now don't get confused between "no ground plane" and grounding; such as grounding an electrical component. No ground plane when it comes to antennas is: a metal surface surrounding the base of the antenna in which the radiating signal reacts with. Example of a good ground plane antenna situation. Example of a no ground plane antenna situation Legacy No Ground Plane Antenna Item #: 965 $ 39.99 Retail Price: $ 61.99 Quantity - + Tell us your frequency: Add to Cart Description Reviews 2.4db Gain VHF 144-174 MHz Ground Plane Independent Antenna. Does not need a metal ground plane. Antenna will be shipped cut/tuned to 151.625. If you would like a different frequency, please enter it above. are campfires allowed in washington state Figure 3 Table of 1/4 λ Ground Plan element dimensions for various amateur radio bands. Construction . The 1:1 Guanella current balun is the convenient central hub of the wire ground plane antenna and while the balun was never designed with this antenna configuration in mind it works fairly well. Ideally the two binding post would be better ... May 30, 2022 · The absence of a ground plane or very small ground plane will cause the matching circuit for the 5/8 wave to be a little different due to less capacitance between the vertical element and the ground plane, otherwise there is no "reflection or radiation from a second source" to produce gain in a 5/8 wavelength antenna. This return can be either by ground plane or another proper way.Therfore if there isn't ground plane underneath of MS line, there should be ground plane just besides of the line called as "Coplanar Waveguide" without ground. B bepsml Points: 2 Helpful Answer Positive Rating Nov 23, 2012 May 22, 2012 #3 WimRFP Advanced Member level 5 JoinedThe Shakespeare Big stick was the first antenna I bought for my first base station back in 1974 with 50' of RG8U wire. I had it mounted on 21' of 1" galvanized water pipe which I shimmied it up thru the limbs of a big old tree to clear the top of the tree and poly guy roped it in the tree. This was on top of a big hill.NMO Mount B-Base 700/800/900 Mobile Antenna, 806-866 MHz, Chrome, No Ground Plane Home > Antennas > Mobile > NMO Mount B-Base 700/800/900 Mobile Antenna, 806-866 MHz, Chrome, No Ground Plane Part#: B8062N By: LAIRD TECHNOLOGIES Qty Add to Cart Add to Favorites Addtional Information Specifications Addtional InformationFirefly™ No-Ground Plane CB Antenna Kit by FireStik®. This top-grade product is expertly made in compliance with stringent industry standards to offer a fusion of a well-balanced design and high level of craftsmanship. Manufactured from industry-leading materials using up-to-date equipment, it ensures everlasting reliability and enduring value.For temporary antennas the wires can be attached directly to the coax, as shown previously. 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. Answer (1 of 2): Yes. body found in chouteau ok wheel of fortune template google slides free Tri-Band Whip Antenna - NGP (Non Ground Plane) $49.99. Shipping calculated at checkout. Pay in 4 interest-free installments for orders over $50 with. Learn more. Quantity. Add to cart. Tri-Band Whip Antenna for VHF and UHF radios we sell. FireStik FG4648-B Four foot No-ground plane CB antenna kit (Black) 177. $10999. Get it Fri, Apr 15 - Wed, Apr 20. FREE Shipping. Firestik FG3648B Overview. 3' Firestik No Ground Plane CB Antenna Kit For Horizontal Bar or Side Body Mounting. The Firestik series of no-ground plane (aka NGP) antennas are designed specifically for vehicles lacking a counterpoise, or ground plane. Commonly this type of antenna is used on RV Campers, Semi's, and Motorcylces, although not ... In a whip antenna not mounted on a conductive surface, such as one mounted on a mast, the lack of reflected radio waves from the ground plane causes the lobe of the radiation pattern to be tilted up toward the sky so less power is radiated in horizontal directions, undesireable for terrestrial communication. Also the unbalanced impedance of the monopole element causes RF currents in the ...The standard ground plane antenna consists of a vertical radiator which is insulated and centered between 4 horizontal surrounding radials which extend out from the base of the antenna. Each radial is evenly spaced (90 degrees apart from each other) around the vertical element. All antenna lengths depend on various factors.In a whip antenna not mounted on a conductive surface, such as one mounted on a mast, the lack of reflected radio waves from the ground plane causes the lobe of the radiation pattern to be tilted up toward the sky so less power is radiated in horizontal directions, undesireable for terrestrial communication. Also the unbalanced impedance of the monopole element causes RF currents in the ...ANTENNA USES & AIRCRAFT COMPATIBILITY NO Ground Plane . . . These antennas are designed to operate with the modern radios that are installed in today's composite airframes. Just bond them in and connect the coax cable, don't use a ground plane. Seal them into the structure, they last the life of the airframe.A no ground plane CB Antenna is a CB antenna that doesn't need a ground plane (large metal surface under it) to run. Ground Plane antennas are specially designed to operate on fiberglass vehicles and boats. A No Ground Plane antenna installed on a vehicle or boat constructed of metal will not operate accurately. revcam server GMRS and UHF No Ground Plane NGP Tuned Whip Antenna. The GMRS-POINT5 / UHF optimizes your GMRS radio by delivering the best signal performance throughout the programmed channels. Measuring a total of only 14.5", the POINT5 antenna packs big performance in a small size. Functions on any frequency between 406-470MHz, including GMRS. FireStik FG4648-B Four foot No-ground plane CB antenna kit (Black) 177. $10999. Get it Fri, Apr 15 - Wed, Apr 20. FREE Shipping. You won't find a NGP 1/4 wave. All quarter wave need a ground plane. If you want no ground plane, you need a 1/2 wave antenna. If you are concerned about trees, you might need to look at fender mounts, or mount it dead center of your hood.Product Description. PURPOSE: The FGX-648 (where X = antenna length in feet) series, 'No ground plane" (NGP) CB antenna kits were specifically designed to solve the problems associated with the lack of ground plane. This normally occurs on vehicles constructed of plastic, fiberglass, wood or aluminum. Ground plane problems typically show up in ... NMO Mount B-Base 700/800/900 Mobile Antenna, 806-866 MHz, Chrome, No Ground Plane Home > Antennas > Mobile > NMO Mount B-Base 700/800/900 Mobile Antenna, 806-866 MHz, Chrome, No Ground Plane Part#: B8062N By: LAIRD TECHNOLOGIES Qty Add to Cart Add to Favorites Addtional Information Specifications Addtional InformationWorkman Saturn B-100 No Ground-Plane CB Antenna Home Base Station, Marine, RV. $44.95. Free shipping "GOLDENROD 45" 11 METERS CB OMNI MOBILE ANTENNA 12,000 WATTS BROADBAND. $117.00. $28.34 shipping. VINTAGE HUSTLER HQ-27 BLACK CENTER LOADED CB ANTENNA 55 INCHES LONG. $37.07. Free shipping. Only 3 left. CB Antenna Vintage Gutter Mount.http://www.rightchannelradios.com/collections/no-ground-plane-cb-antennas/products/firestik-ngp-antenna-3-way-mount-kit- Our #1 no-ground kit from Firestik e... 4 ft $54.95. The LG series, More info - 'No ground plane' (NGP) CB antenna kits were specifically designed to solve the problems associated with the lack of ground plane (counterpoise). This normally occurs on vehicles constructed of plastic, fiberglass, wood or aluminum. This includes, but is not limited to, motorcyles, motor homes, boats ...You won't find a NGP 1/4 wave. All quarter wave need a ground plane. If you want no ground plane, you need a 1/2 wave antenna. If you are concerned about trees, you might need to look at fender mounts, or mount it dead center of your hood. raspberry pi usb over ipdaewoo g30s partsNagoya UT-72G Magnetic Dual-Band GMRS Antenna $32.95 Nagoya GPK-01 NMO Ground Plane Mount Kit Sold Out Retevis RG-58 Coax Cable 50-Ohm 50 Feet Sold Out Midland MXTA23 Roll Bar/Mirror Mounting Bracket $19.99 Midland MXTA24 Low Profile Antenna Cable $29.99 Midland MXTA21 Jeep Wrangler Bracket Mount $29.99 Nagoya NA-701C Antenna $15.9927″ Hood Mount Spring Antenna for Garmin Alpha or Astro No Ground Needed $ 44.99 48″ Hood Mount Spring Antenna for Alpha or Astro $ 54.95 2 reviews 48″ Long Range Magnetic Truck Antenna for Garmin Alpha & Astro $ 49.95 10 reviews 48″ Whip Bracket Truck Mount Antenna for Garmin Alpha & Astro $ 44.99 12 reviewsFor temporary antennas the wires can be attached directly to the coax, as shown previously. 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. Answer (1 of 2): Yes. Figure 3 Table of 1/4 λ Ground Plan element dimensions for various amateur radio bands. Construction . The 1:1 Guanella current balun is the convenient central hub of the wire ground plane antenna and while the balun was never designed with this antenna configuration in mind it works fairly well. Ideally the two binding post would be better ... 300 Watt rated No ground plane required for operation Will work with fiberglass vehicles, boats RVs and motorcycles May be used as a base station antenna SO-239 ... PRO-GROUND ANTENNA NO-GROUND TUNABLE ANTENNA Part No. Length Package Case Qty 3NGA-2 2 FT SKIN 12 3NGA-3 3 FT SKIN 6 3NGA-4 4 FT SKIN 6 Today's Date PROCOMM, INC - 209 W GRANT AVE ...Search: Moxon Antenna 27mhz. 4 GHz My experiments of Long Distance Communications with Low Power Radios (QRP) over CB, PMR446 band, SRD869 band, WiFi 2 Slim Jim 433 MHz hand held antenna Jun 14, 2012 · MFJ-1890 10 Meter Moxon Antenna (Tested on 10 meters & 11 meters/CB Band) MFJ MOXON Quick Look From CBRADIOMAGAZINE ln its basic form it'seasy. This CB antenna consists of a driven element and ...1) Run a wire from the antenna mount to the chassis of the vehicle. The wire needs to be as thick as is possible, anything over 10amp rated is suitable. Make sure it is attached to the ground part of the mount. This normally works in most situations, however if it doesn't you may need to look at the next suggestion.This shortened easy-to-build vertical, with no-radials, is made from surplus military camouflage poles. It has gain and wave angle comparable to a full-sized ¼λ ground plane antenna with radials . By John Portune W6NBC . I wanted high efficiency 40 Meter antenna with low-angle radiation. My inverted-V at 40 ft. performs well, but is "a cloudhttp://www.rightchannelradios.com/collections/no-ground-plane-cb-antennas/products/firestik-ngp-antenna-3-way-mount-kit- Our #1 no-ground kit from Firestik e... Specifications. Part Number: BMLPVMBLTENGP: Frequency Range: 698-960/1710-2500Mhz: Gain: 3 dBi/ 4 dBi: Max Power: 100 Watts: Polarization: V ertical : Ground Plane: Metal Ground Plane Not Required salon b hair salon Larsen NMO220CHW VHF No Ground Plane Antennas 220-225 (MHz) (Tunable) 1/2 Wave Antenna No Ground Plane Required. Base loaded 2.5dB gain antenna. 30" Figure 3 Table of 1/4 λ Ground Plan element dimensions for various amateur radio bands. Construction . The 1:1 Guanella current balun is the convenient central hub of the wire ground plane antenna and while the balun was never designed with this antenna configuration in mind it works fairly well. Ideally the two binding post would be better ... it is part of the vehicle structure, but is not enuff for a ground plane. i am using a magnet mount lil wil on it, but it is the onlly spot on the roof that is accesible steel. even the luggage rack is composite to save weight 08-17-2012, 09:27 PM #6 whitestick In The Swamp Chat with me Join Date Aug 2012 Location plymouth Posts 3 Thanks 0For temporary antennas the wires can be attached directly to the coax, as shown previously. 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. Answer (1 of 2): Yes. 806-866MHz 5/8 Wave Antenna w/Chrome Finish. B8065C - Base Closed Collinear Antenna (806-866MHz, 5dB Gain, 16" Collinear Whip) Your Price: $83.62. Quantity: * Whole number only. 806-866MHz Base Closed Collinear Antenna. MAB8U - Laird 3/8" Hole NMO Mount with 17' RG58U Cable. Your Price: $40.96. realignment meaning in english May 30, 2022 · The absence of a ground plane or very small ground plane will cause the matching circuit for the 5/8 wave to be a little different due to less capacitance between the vertical element and the ground plane, otherwise there is no "reflection or radiation from a second source" to produce gain in a 5/8 wavelength antenna. Feb 13, 2019 · This item Rugged Radios VHF 1/2 Wave No Ground Plane Antenna - 144-174Mhz - # VHF-1/2W-SPR Bingfu Vehicle Ham Radio Mobile Radio Antenna VHF UHF 136-174MHz 400-470MHz Car Truck Amateur Radio Two Way Radio Low Profile Antenna with Lip Mount Fixed Bracket PL259 Male 5m 16.5 feet RG58 Cable Ground Plane antennas are specially designed to work on fiberglass vehicles and boats. A No Ground Plane antenna installed on a vehicle or boat constructed of metal will not operate correctly. A no ground plane antenna is designed to use the ground or water to transmit horizontally. A No Ground Plane antenna will not perform as well as a ... B4505CNS Chrome Base Coil Antenna - NMO Spring - 450-470 MHz UHF - No Ground Plane required. $64.59 View Details In Stock BB4502N BB4502N 12.5 Inch UHF Whip Antenna with Black NMO Base - 450-470 MHz $48.44 $45.27 View Details In Stock MUF4502S MUF4502S: PCTEL / Maxrad Base Loaded Chrome Coil Antenna - UHF 450 MHz-470 MHz - Spring Included - UnityLarsen NMO220CHW VHF No Ground Plane Antennas 220-225 (MHz) (Tunable) 1/2 Wave Antenna No Ground Plane Required. Base loaded 2.5dB gain antenna. 30" Thanks to Bret of "Survival Comms" for this easy-to-make video on designing, making, testing, and using what he calls " The VHF/UHF folding ground plane ." According to Bret, this antenna has "broad bandwidth, great performance, simple implementation, and low cost.". PCI Race Radio 1408 NGP No Ground Plane 2db Gain VHF/UHF 150-174MHz Ground Plane Independent Antenna for a sandrail, rock Crawler, KOH, Ultra4, truck, UTV, side-by-side, dune buggy, mini buggy, manx, king of the hammers, 4x4, or Jeep ... Axia Alloys Black Anodized Billet Mount For A NGP No Ground Plane VHF or UHF Race Radio Antenna. Suggested ...The length of the antenna is a function of the transmitter frequency. The antenna would be far too long for most applications using the CB frequencies, so a fraction is used; thus the term 1/4 wavelength dipole. If you want the signal to go forward, you need a ground plane ahead of the antenna; to the rear, likewise.No Ground Plane Whip Antenna UHF radios we sell. Antenna is can be tuned and uses an NMO mount (3/4" hole). Stainless steel whip with a base loaded coil. No Ground Plane required so this can be mounted pretty much anywhere. Performance is better if mounted with a ground plane, Ideal for plastic panels, roll bar mounts, etc."No-Ground Plane" CB Antenna Kit Includes an antenna, spring, mirror arm bracket and coax cable Available in 2, 3, & 4 foot lengths in the color black Firestik FG-648 Antennas FG 2 foot FG 3 foot FG 4 foot $49.95 $52.95 $54.95 * We screen diligently for credit card fraud * Secure Shopping Cart by Americart * Usually ships within 1-2 business days4 ft $54.95. The LG series, More info - 'No ground plane' (NGP) CB antenna kits were specifically designed to solve the problems associated with the lack of ground plane (counterpoise). This normally occurs on vehicles constructed of plastic, fiberglass, wood or aluminum. This includes, but is not limited to, motorcyles, motor homes, boats ...A ground-based (not mounted on my truck) use would have no such metal roof as a ground plane. So I purchased a ground plane kit. I bought the TRAM 1465 Land Mobile Base Ground Plane Kit. Cost was $32 through Amazon. The kit solved that issue but I was still undecided on how to set-up the antenna itself.Laird Connectivity BB1442NR VHF 144-174MHz No Ground Plane Mobile Antenna with Elastomer Spring. 200 Watts. Requires NMO type mount sold separately. Product information FireStik FG4648-B Four foot No-ground plane CB antenna kit (Black) 177. $10999. Get it Fri, Apr 15 - Wed, Apr 20. FREE Shipping. 300zx wiring harness replacementJun 08, 2020 · Why use an antenna that requires a ground plane? 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 ... When "traditional" type antennas are used on vehicles with little or no metal to serve as a radiating ground plane, the performance is extremely poor. S.W.R is usually so high that "final transistors" in the radio are blown. "No Ground" is "No Problem" with Everhardt's new generation of "No Ground" Antenna Systems.Nagoya UT-72G Magnetic Dual-Band GMRS Antenna $32.95 Nagoya GPK-01 NMO Ground Plane Mount Kit Sold Out Retevis RG-58 Coax Cable 50-Ohm 50 Feet Sold Out Midland MXTA23 Roll Bar/Mirror Mounting Bracket $19.99 Midland MXTA24 Low Profile Antenna Cable $29.99 Midland MXTA21 Jeep Wrangler Bracket Mount $29.99 Nagoya NA-701C Antenna $15.99You won't find a NGP 1/4 wave. All quarter wave need a ground plane. If you want no ground plane, you need a 1/2 wave antenna. If you are concerned about trees, you might need to look at fender mounts, or mount it dead center of your hood.Search: Moxon Antenna 27mhz. 4 GHz My experiments of Long Distance Communications with Low Power Radios (QRP) over CB, PMR446 band, SRD869 band, WiFi 2 Slim Jim 433 MHz hand held antenna Jun 14, 2012 · MFJ-1890 10 Meter Moxon Antenna (Tested on 10 meters & 11 meters/CB Band) MFJ MOXON Quick Look From CBRADIOMAGAZINE ln its basic form it'seasy. This CB antenna consists of a driven element and ... ue4 make object invisibleLegacy No Ground Plane Antenna Item #: 965 $ 39.99 Retail Price: $ 61.99 Quantity - + Tell us your frequency: Add to Cart Description Reviews 2.4db Gain VHF 144-174 MHz Ground Plane Independent Antenna. Does not need a metal ground plane. Antenna will be shipped cut/tuned to 151.625. If you would like a different frequency, please enter it above.May 30, 2022 · The absence of a ground plane or very small ground plane will cause the matching circuit for the 5/8 wave to be a little different due to less capacitance between the vertical element and the ground plane, otherwise there is no "reflection or radiation from a second source" to produce gain in a 5/8 wavelength antenna. Larsen NMO220CHW VHF No Ground Plane Antennas 220-225 (MHz) (Tunable) 1/2 Wave Antenna No Ground Plane Required. Base loaded 2.5dB gain antenna. 30" http://www.rightchannelradios.com/collections/no-ground-plane-cb-antennas/products/firestik-ngp-antenna-3-way-mount-kit- Our #1 no-ground kit from Firestik e... 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.A no ground plane CB Antenna is a CB antenna that doesn't need a ground plane (large metal surface under it) to run. Ground Plane antennas are specially designed to operate on fiberglass vehicles and boats. A No Ground Plane antenna installed on a vehicle or boat constructed of metal will not operate accurately.2. I will use a ground plane (GP) system and suffer the possible consequences. 3. I will use a no-ground-plane (NGP) system and be able to use my CB. In short, the NGP system (we call it a system because the antenna and coaxial cable are a matched set that may not be interchanged with other non-Firestik NGP antennas and coax assemblies) is a ... I am debating on the MaxRad 3 DB gain (no ground plane) for $40.. or the Tram 1175 with 2.4 DB gain (no ground plane) for $30. or the Browning BR-450 5.5 DB gain (ground plane type) for $27 or Tram 1177 5 DB gain (ground plane type) for $19. ... At any rate, NMO-mount mobile antennas work best with a good ground plane under them, and mounted ... adventhealth employee xa