2 Meter Antenna Stacking

I have a UHF/vhf combiner, but my brother did not want to buy a rotator , so I used a 2 way splitter. Optimised Six-Metre Yagi by Brian Beezley, K6STI, Issue 39, October 1993. is a blend of technical expertise and common sense approach to accommodating your needs. This 1/2 wave antenna is light weight flexible and meets all the typical performance characteristics of the standard half wave monopole antenna. Maco YQSK Download Manual Y-Quad and M103C Stacking Kit $328. The taper schedule for each of the antennas discussed is shown at the end of this article. Hence, we can estimate that these antennas are designed to operate at a wavelength of about 1-2 meters, and therefore radiate at a frequency of c/lambda=(3e8/2)=150 MHz to c/lambda=(3e8/1)=300 MHz. To achieve those results with an increase in power from an amplifier would require an expensive unit that would have to produce many hundreds of watts. Last update 12-04-2013 : Added 3,60 DX-Beam 11-3el Yagi and the 5,40 5el WULF in “eznec battle. UHF Vertical Stacked, Antennas Direct 91XG 23-Element Corner-Yagis analyzed using 4nec2 with various Separation Heights. 6 meter 2 element: 6. Support boom element for parallel stacked antennas (for use with the A144S5 and A144S10 2m beams and the A430S10,. It depends entirely on how it's arrived at. Is this the best way to combine 2 UHF antennas? Also, how far apart should 2 antennas be?. The Antenna Farm : 2 Meter Yagi Antennas - VHF & UHF Mobile Radios Radio Accessories VHF & UHF Hand Held Radios Antennas Mobile Antenna Mounts SWR/Power Meters Adapters Coaxial Cable Two Way Accessories Antenna Accessories DC Power Supplies Coax Cable Accessories Amplifiers Connectors Aviation Radios Repeater Systems Towers & Accessories Duplexers Diplexers & Triplexers VHF & UHF Base Stations. The first goal in the project was to build a 2 meter halo antenna that was more robust than my previous design. It has a low omnidirectional pattern and is circularly polarized. 50 Amp Power Supply $149. The original goal was to have an antenna that I could use for 2 meter SSB. This is step two of the process to build and install a pair of halo antennas for use on 2 meters SSB. Constructed of 3/8" hard drawn 6063-T832, and 6061-T6 aluminum, UV resistant PVC, stainless steel hardware, and a mast bracket that. The purpose of the above tables is to provide comparison information for 6m operators selecting antennas, and stacking information for experienced weak signal operators interested in constructing antenna arrays to maximize gain. Looking for base antennas. 30 Amp Power Supply $99. Rugged and solid with soldered copper connections. Top Rated Plus. On working frequencies less than 1. Antennas Documentation Project CBTricks. root of the boomlength (in wavelengths) and use that as your stacking distance. 122 meters long and 0. Counter-example: 4-over-4 on 40 meters I think it worthwhile to include a stacking example that fails miserably. The items below are upgrades for those who already own a 146-4S SO-239 and want to upgrade that to a stacked set. This is a great idea, as the packaging and shipping of a. What others are saying Magnetic Mobile Antenna Ham Radio 2 Meter / 70 cm 140 to 150 and 440 to 470 MHz - PriceFire Budget HAM radio proves you don't have to spend a lot of money to get reliable and durable ham radio equipment that will be a backup if cell phones fail!. Competitive Antennas for 20 Meter DX Horizontal antennas are always the best choice if you can install your antenna at 35 feet or higher otherwise use a four-square vertical array with extensive radials Small triband Yagi or a small 2 element Yagi or quad a small Yagi 50 to 70 feet high will produce good results. VHF 1/2wave vertical antenna for the 6-meterband (50 Mhz) RE-A50V12 By Guy, de ON6MU. 146-4 Stacked Set Horizontal max 2. 35db gain for 2x boom length increase • Advantage or disadvantage? - 2. • Do I use a longer antenna or stack shorter ones? - 2. 2-meter beamsone vertical and one horizontal. J-POLE BASE ANTENNA 2 meter 70cm Dual Band Heavy Duty Amateur Ham Radio Scanner - $38. I settled on a 2 meter vertical dipole. So I trimmed about 2mm off of the base and remeasured. By Graham Ide, VE3BYT, with David Conn, VE3KL. The serious 2 Meter operator who is interested in EME, aurora, scatter, CW, tropo etc. Stacking a pair of VHF ham radio antennas - does it really work? DX Commander 80-6 meter OCF Dipole Antenna for SHTF. The antennas were designed using NEC-2 on a Debian Linux system. A Five-Element, 2-Meter Yagi for $20 element to the boom and discard the ele-ment. and no degradation of performance at 2 meters and 70cm? Review of the Literature J. But, handling a 2. How to tune it? Move the aluminium tube left or right. Most simple, nondirectional. Looking for 10 to 15 element quad antenna plans for 2-meters. 61 meters and the total length of the antenna is 5. I recommend a minimum height of 20 meters (λ/2). The purpose of the above tables is to provide comparison information for 6m operators selecting antennas, and stacking information for experienced weak signal operators interested in constructing antenna arrays to maximize gain. Mounting:Galvanized steel mounting clamps permit mounting the antenna to a support pipe up to 3. As an SWL, I was very much interested in antennas and its construction. com: 2 meter yagi antenna. All you need is two rabbit ear antennas from Radio Shack, two CATV baluns, four feet of 3/4" CPVC pipe with one tee, and a bit of time. One is the switch selectable control box and power supply that sits on the operating bench, and the other is the remotely mounted relay switching box that mounts on the tower. Cushcraft A26B2-VPK Stacking Kit for A13B2. Anthony Monteiro, AA2TX junction is connected to another section of coaxial cable that serves as an impedance matching section to get a good match to 50 Ω. The 6 meter Moxon is built from 5/ 8 inch OD and 1/ 2 inch OD aluminum tubing with 3/ 8 inch OD solid aluminum for the corners. General rule is half the boom length of the highest frequency antenna if it is stacked over a lower frequency antenna. It is a common practice these days using vertically stacked directional antennas, in particular yagi - udo type. It depends entirely on how it's arrived at. 000 visitors I closed www. Stacking Quad Antennas. When I re-scaled the antenna with EZNEC, the spacing and lengths were calculated out to about five digits. In keeping with the theme I dubbed this a "Squalo Revisited"; however, this is NOT a true Squalo - it is simply a U shaped dipole. 4000, October 1996, “prohibits restrictions that impair… antennas used to receive video…. The lower cone is a decoupling sleeve for the antenna mast. QUESTIONS When the stacking of Yagis is being considered, the questions which usually arise are: 1. The 4BA antenna has 3 elements on 10/12 and 15/17. ground plane antenna, it doesn’t need ground The DBJ-2: A Portable VHF-UHF Roll-Up J-pole Antenna for Public Service Edison Fong, WB6IQN WB6IQN reviews the theory of the dual band 2 meter / 70 cm J-pole antenna and then makes detailed measurements of a practical, easy to replicate, “roll-up” portable antenna. Stacking several antennas in a vertical array typically 'flattens' the radiation pattern (the '440 part of a dual-band antenna). A Five-Element, 2-Meter Yagi for $20 element to the boom and discard the ele-ment. Another view of perfect Low Noise Antenna PA144-9-5A. The data sheet is very specific that it must be mounted "2 to 3 feet below the top of the tower or pipe support. He has a balcony on the rear (south) side, but high buildings are very close, he has no direct sight in any direction. Thanks Ed! "Recently, while going thru some of my older Ham magazines, I ran into this article by Ed, N3SDO on the J BEAM antenna. You would stack the 10 meter yagi 12 feet above the 20 meter yogi. It covers the 138 - 174 MHz frequency range. qty description sub14401 1 2 meter matchbox 14402 2 3/4” square aluminum radiator 14403 2 3/16 round aluminum rods 14404 1 fiberglass angle 14405 2 plastic end caps 14406 1 black plastic tube 14407 1 alum. One of the members commented to me that I should write an article about collinear arrays so that we could all build our own. Aug 02, 2017 · Chapter 18 - VHF And UHF Antenna Systems VHF and UHF Antenna Systems 18-1 Chapter 18 A Yagi can be easily designed to cover any 2. Outdoor range tests show significant gain over rubber duck Antennas. M2 Antenna 6M5XHP. As described on the previous page, when a 2-way splitter is used as a combiner, 1. Adjust your radio to 146. I would go with the Cushcraft 17B2 or even a pair stacked. Long yagis are commonly used from the 144MHz amateur band to the 2. EFHW-8010-1K Multi-Band End Fed Half Wave Antenna. HO LOOPS do not need a counterpoise, so mounting options are simplified. Alpha Antenna Dual band 2 Meter 440 MHz VHF UHF antenna [2M 440MHz Antenna] - Stealthy black VHF/UHF Dual Band Antenna • Frequency: 144-148/435-450 MHz (2 Meter 440MHz bands) • Gain: Unity Gain (VHF)/ 2 dB (UHF) • Power Capacity: 150 Watts • Length: 17. BNC (female) to PL259 adapter - allows the DBJ-2 to adapt to most base and mobile radios. Practical Antenna Notes-- Loaded with ideas -- dB, dBi, and dBd, -- Invisible and Hidden Antennas -- About SWR -- The Simplest 3-Element. Boom = 30 in/76cm; sprial radiating element = 30 in/76 cm diameter; weight = 4 Lbs/1,8Kg. I've included an example from Bob in Newberg, OR. 2 Meter Moxon (18 April 2015) SOTA is appealing for many reasons. • A 1/2 inch 10 foot PVC pipe • 3 1/4 inch x 36 inch Aluminum rods • 2 1/4 inch x 48 inch Steel rods (I know they'll rust, it's just temporary to get it to work, I'll get aluminum later) I don't have any coaxial cable (don't know the best type to get) and don't know how to match the impedance of the cable to the antenna. Yagi antennas, W8JK arrays, and log periodic dipole arrays are all end fire arrays. 2 picture of the antenna farm of RM9A with 3-layer stacks on 20 through 10 meter bands and a 2-layer one on 40 meters all using bidirectional fixed antennas. VHF / UHF Direct Connect Beams Here are some lengths and spacings for various direct connect beams. Cushcraft A26B2-VPK Stacking Kit for A13B2. Pretuned and ready to go for the 2 meter amateur radio band; KB9VBR 2 Meter J-Pole Antenna Specifications: Constructed out of 1/2 inch copper tubing. Having purchased an all-mode, all-band (160m - 70cm) transceiver, I became curious about what 2-meter weak signal operations have to offer. 3 dB at 50 feet. Stacking a pair of VHF ham radio antennas - does it really work? DX Commander 80-6 meter OCF Dipole Antenna for SHTF. The main category is Ham radio directional Yagi antennas that is about Yagi Antennas for ham radio use, manufacturers, plans and design. Cushcraft 2 Meter Beam Antenna Stacking Kits provide the hardware you need to feed two Yagi antennas in phase. Use a screwdriver and pliers to re-lease one wire from beneath one of the rivets on the 58-inch element. The bandwidth of an antenna is, by one definition, the width of the band of frequencies having a gain within 3 dB (one-half the power) of its maximum gain. Tower Electronics Online Wholesale Catalog P. This 5 element 6m Yagi gives you tremendous performance with very high gain on a 15ft boom. Antenna gain is measured in either dBi or dBd. Most stations are using an antenna-mounted preamplifier with 1. The antenna you already own is assumed to have the SO-239 connector on the right side. This 1/2 wave antenna is light weight flexible and meets all the typical performance characteristics of the standard half wave monopole antenna. How to tune it? Move the aluminium tube left or right. When I re-scaled the antenna with EZNEC, the spacing and lengths were calculated out to about five digits. 2 GROUNDPLANE ANTENNA Model FQ -2 The antenna model FQ -2 is a development from the basic configuration of a groundplane. 3dBD, each Big Wheel has a N-jack (female). 8 dBi gain on FM, packet, CW, or sideband across the 4 MHz operating range. For this I am using the 4-element 40 meters switchable wire yagi from a recent article. M2 Antenna 6M5XHP. [email protected] I used 2 meters of PVC tube of 4 cm diameter as a temporary mast, stuck into a heavy umbrella stand (see Fig. TAK-tenna 80 to 6 meter Multiband Antenna. DX-EE - “No-Trap” 40-20-15-10 meter dipole or inverted V. A quarter-wavelength antenna is easy and inexpensive to build and can be an effective antenna with a low angle of radiation (that is, power is radiated out, not up). one quarter of the input power is reflected back towards the input, 2. 315 ÷ 4 × 0. You may have already seen my HF Balcony Antenna which was designed solely for 14MHz, then a coil was added to cover all the lower HF bands (10, 7 and 3. org to explore your television viewing options. Antennas were eventually mounted on two home designed and home made continuous heavy duty telescoping rotating tubular steel towers. New and experienced hams will enjoy 15. 6\mbox{ miles} \$ Double this to give 11. This antenna is unique in that it is enclosed entirely in 3/4" PVC which makes the design a little more complicated. A crossed-dipole turnstile antenna for 2-meter ARDF. 580 mhz and check your SWR reading. We try to provide suitable stacking distances for all of our antennas. The serious 2 Meter operator who is interested in EME, aurora, scatter, CW, tropo etc. MALtronix HLW100S All band HF long wire antenna - RM150 20. 2-Meter 5/8 Wave Antenna by FireStik®. PDF file, 160 KB (ANTENTOP-01-2017, pp. They fire in the direction of the boom through the plane of the elements. ) Horizontal Beamwidth (Deg. This link is listed in our web site directory since Tuesday Mar 10 2009, and till today "Stacking 2 Meter Halo Antenna" has been followed for a total of 1780 times. 00 SMA (female) to SMA (female) - $1. Antenna feedline choice is optional, but you should consider the output matching capability of the transmitter. com in a single category. NOTE: This antenna can be cut for the 6 meter amateur radio band and makes an excellent repeater antenna. One antenna is mounted upside down to allow access to the connector for the phasing harness. This antenna will have a similar radiation pattern to the dipole antenna, and will have vertical polarization. Calculate beam antenna gain by the number of elements. Low Noise design Yagi Antenna for 2 meter band. 2 to 1, turn off your radio and adjust the driven elements by loosening the hose clams and moving the elements toward each other. I do not want to pierce the body and obviously my prior Mag Mount will not work. The taper schedule for each of the antennas discussed is shown at the end of this article. The antenna costs almost nothing to construct and should handle up to 50 Watts of power. The 2 way was losing too much signal, so I combined them with twin lead. Form Submission. 10-80 Meter 100W Alpha Loop 100W 10-40M, 20W 40-80. Provides you the height you need to receive the best signal. By Graham Ide, VE3BYT, with David Conn, VE3KL. 00 : Maco MBSK Download Manual Maximum Beam Stack Kit for M103C through M107C $338. The formula for the elements is ((460/f) / 2) where f is the frequency. Start with a longer antenna length and adjust the legs in equal increments for minimum VSWR. Challenger Communications - Antena & Satelite Dish Manufacturer Proudly MADE in the USA beyond borders SATELLITE ANTENNAS WE SERVICE Challenger Communications - Antena & Satelite Dish Manufacturer has the RIGHT Antenna to fit YOUR needs Prime Focus Antennas From 1. 7 dBi gain and 18° Vertical Beamwidth. 3 Element Beam on 2 Meter, 7 Element Beam on 70 cm 146/437-10BP. We design high quality j pole and ground plane antennas for use by amateur radio operators and professional use. There are three reasons for stacking antennas vertically: (1) To reduce signal fading from distant TV stations; (2) To reduce airplane. The elements themselves are one wavelength of material each at the band of interest. 2 results for 2 meter beam antenna Save 2 meter beam antenna to get e-mail alerts and updates on your eBay Feed. Would building a bigger Yagi better suit. Wilson 2 Meter Amateur Magnet Mount Antenna Kit *Product Intended for 2 Meter HAM usage. A 2-foot section of PVC painted gray along with various junk-box antenna parts were used in the construction. 00 : Maco VQ2SK Download Manual V-Quad Stacking Kit + M103C $167 00. 5 dB of Raw Gain Loss at 2-ft and 3-ft Separation Height. This part Antenna Interactions—Part 8 40 and 15-meter. M2 Antenna Systems, Inc. The 4BA antenna has 3 elements on 10/12 and 15/17. The model numbers will remain the same. The 2 Meter antenna - A Cycloid Dipole: For the 2 meter beacon we started using a 2 meter J-pole - but in a service where most people listening were likely to be using horizontally polarized antennas, this was not considered to be ideal. 50' long antenna, but rather two 5/8 wave CB base antennas stacked on top of each other. Different boom sizes view joins. However, almost any combination of ham sticks can be used. 15 meters is just to the left. The gain at the horizon is -0. The cubical quad antenna lends itself to use at VHF and UHF, and a 2 metre quad or two meter quad is easy to make using a few items that are easy to obtain or may even be available anyway. The 4BA antenna has 3 elements on 10/12 and 15/17. There are mutants who are telepaths and have small “antennas” which make them rather conspicuous (they can try to hide the antennas under their hair, or under hats and such things, but is does not work very well) so they are hunted, and a second type who do not have antennas. B: Picture yourself seated at ground level, exactly between the two antennas (75 km from each) Each antenna must be tall enough to just reach you at that antenna's horizon. This assumes that both stations are at the same height above sea level. For a 2 meter f = 146 MHz J-Pole antenna, the 1/2 wavelength radiating section (Section A) is equal to A = 0. How to build a 2 meter J-Pole T-cars virtual Elmer (swr adjustable clamps) 2 Meter J Pole Beam Jagi Tri-County. I have a 5/8th over 5/8th vertical collinear antenna hanging in a tree at some 30 odd feet high, but I never heard anything on it, except on FM. The fundamental principle of antenna stacking. one quarter of the input power is diverted to the other input, and. With 12 elements on a 19 ft. Monoband Beams for 12 and 17 Meters I designed a pair of driver-director Yagis for 12 and 17 meters using antenna-modeling software, in this case, NEC-4. Smiley Antenna is using a newly designed flex coil matching network. ARRL Product Review of the M2 6-Meter HO Loop Antennas. When stacking four antennas use two A147-22. The 2-Meter Slot-Cube Antenna John Portune, W6NBC Few homebrew antennas have been more popular than the 2-meter J-pole made from ordinary copper water pipe. (A mistake) Others will tell you to take, the sq. Characteristics: It is more or less omni-directional, and horizontally polarized. BUILD THE J BEAM FOR 2 METERS AND UP! Condensed from an article by Ed Bathgate, N3SDO as published in CQ VHF Magazine July, 1988 and used with his permission. Typically has 6 db (approx), over any other 5/8 wave antenna. For example, on the band where each side is 1/2 wave long a lazy-H antenna would have 1/2 wave stacking distance and 1/2 wave collinear distance between current maximums. and no degradation of performance at 2 meters and 70cm? Review of the Literature J. There is actually a middle phasing section, the brings both 5/8 wave elements in phase electrically. The formula for calculating the approximate length of a quarter-wave vertical antenna is:. Our computer aided design supported by precise test range data and the latest manufacturing technology gives you a cleaner pattern and 18 dBi gain in this long boom design. 50 BNC (female) to SMA (male) $2. 50MHz, 144MHz and 432MHz Gain and G/T Simulations by VE7BQH. Being a full wave loop, Ground losses are minimized and this antenna works very well when close to the ground. Big 2 1/8" bottom section tapers at the top to 3/8 of inch for flexibility, strength and wide bandwidth. Being the crafty maker type, I wanted to build my own antenna. A height of 30 or more meters is even better. PDF file, 130 KB (ANTENTOP-01-2009, pp: 50-51) Three Element YAGI Antenna for the 20- meter Band. 1 dB, gain at 1° elevation over the upper antenna alone is only 1. Coax fed loops will usually have an SWR between 2:1 and 3:1. The goal here is to put up a cheap, easy, and quick 2-meter antenna that is simple and unobtrusive, but works. Is this the best way to combine 2 UHF antennas? Also, how far apart should 2 antennas be?. Two Meter Vertical G7-144 Model G7-144 The Hustler G7-144 is a high performance two meter vertical antenna with 7 dB maximum effective gain for a more consistent pattern, even in marginal areas. I came up with this antenna design for use with hidden transmitters on international-rules ARDF events. FA: 4 element 2 meter quad antenna. 146-4 Stacked Set Horizontal max 2. The Wheel resembles a skeleton three leaf clover. A 6 Meter Moxon Antenna Discover 6 meters for the first time or enhance your existing operation with a rugged but portable version of this novel 2 element antenna. USING THE VELOCITY FACTOR OF COAX TO DECREASE SIZE OF ANTENNA. CB and 2- meter antenna builds. Both antennas must be mounted so they face the same direction and have their connectors facing down. The "big wheel" is a horizontally polarized omnidirectional antenna. Ham Universe. Skip to main content. The Wheel antenna has been around since the early 1950's, first used in the Amateur Radio Two Meter band as a horizontally polarized omni radiator. The Procomm PC Series monoband antennas are tried-and-true. The original goal was to have an antenna that I could use for 2 meter SSB. It is always a pleasure to peer into the working mind of another homebrewer and scrounger. But the reality is, stacking gain will be less than 3 db. I have a UHF/vhf combiner, but my brother did not want to buy a rotator , so I used a 2 way splitter. Optimum stacking distance is between 5/8->3/4 wavelength and is relatively non critical. The "big wheel" is a horizontally polarized omnidirectional antenna. A turnstile antenna, or crossed-dipole antenna, is a radio antenna consisting of a set of two identical dipole antennas mounted at right angles to each other and fed in phase quadrature; the two currents applied to the dipoles are 90° out of phase. This link is listed in our web site directory since Tuesday Mar 10 2009, and till today "Stacking 2 Meter Halo Antenna" has been followed for a total of 1780 times. So not only is the antenna long it is also wide. 2 Meter Mobile Antenna Tuning. Shop for 2 Meter Antennas here. TRADE 2 Meter 4 Element. Aug 02, 2017 · Chapter 18 - VHF And UHF Antenna Systems VHF and UHF Antenna Systems 18-1 Chapter 18 A Yagi can be easily designed to cover any 2. With these stacking distances, a 4 yagi bay stacking gain is generally about 5. Stacking Yagi Antennas; Yagi Antenna Design. November 3, 2011: Thank you, Tom, for a great antenna design. A crossed-dipole turnstile antenna for 2-meter ARDF. 146-4 Stacked Set Horizontal max 2. It is important to note that …. The phasing harness can be seen in the pictures and is made from two pieces of 12 foot long RG-11 with a T connector to join them and allow for coax connection. The feed point is usually placed at the centre of the dipole, for although this is not absolutely necessary, it can help prevent. BNC (female) to PL259 adapter - allows the DBJ-2 to adapt to most base and mobile radios. I started out in the early 80's with four home made 8 element crossed polarized antennas for 2 meters. General rule is half the boom length of the highest frequency antenna if it is stacked over a lower frequency antenna. Stacking antennas comes down to: combining two or even more than two antennas together so that they together form an Array. This 5 element 6m Yagi gives you tremendous performance with very high gain on a 15ft boom. 42 meters or 11 feet 2 inches long from the top of the mounting spring to the tip. A note on the vertical stacking of HF antennas. I live about 40 miles from Toledo and 60 miles from Ft Wayne. 4ghz 10dbi. Beam Antenna Height versus DX Signal Arrival Angle Gary Wescom - N0GW 1/29/08 It is probably universal for us to imagine the great DX we will be able to talk to with our first beam antenna. I wanted an antenna that was simple, horizontally polarized and omni directional. Is this a good antenna for 2 Meter of better suited to HF use. 00300 meters in radius. It also supports my 80-160 meter fan dipole and a 40 meter delta loop, along with my B&W multiband folded dummy loader I mean inverted vee. The SWR is adjuatable via the tuning rings at the base. 2 Meter Bobtail Beam Attic Version For Restricted E2 Meter Attic Antenna Image Balcony AndMounting And Using My 2 Meter Antennas Part 1 W7kbx2 Meter Attic Antenna Image Balcony AndMounting …. I purchased an M2 2 meter loop and tried it out at about 5' on my deck. May 23, 2012 · 36. Stack of 2 15M6 at 28 meters and 14 meters on JA tower, fixed Northwest. Along with that comes the question of just how closely we can mount all these anten­ nas before seriously damaging their gain and radi­ ation patterns. November 28, 2019. Welcome to. 2 results for 2 meter beam antenna Save 2 meter beam antenna to get e-mail alerts and updates on your eBay Feed. This antenna is similar in construction to the 2-meter OFC sleeve dipole I built over 8 years ago, but it is a simple center-fed dipole. Amateur Antennas The Cushcraft A148 10S is a high performance yagi antenna for 2 meters. 2 Meter Mobile Antenna Tuning. There are differences between a slot dipole and a wire dipole. The Wheel resembles a skeleton three leaf clover. A much better type of antenna then a simple quatre wave and that has more gain is the 1/2 wavelength vertical. The top antennas turn with a M2 Orion 2800 rotor and the lower C49XR turns with a K0XG Ring rotor. If you find one of these at a hamfest for $20, buy it. This information is always printed on the specification sheet for the individual antenna. Summary Listening to the International Space Station (ISS) and satellites in orbit with a focus on radio signals in the amateur radio 2 meter band comprising frequencies from 144. Use AntennaWeb. One antenna is mounted upside down to allow access to the connector for the phasing harness. For bigger ones, the model will be CC62-xM where x is the length desired in meters. Another view of perfect Low Noise Antenna PA144-9-5A. For example, on the band where each side is 1/2 wave long a lazy-H antenna would have 1/2 wave stacking distance and 1/2 wave collinear distance between current maximums. Calculate beam antenna gain by the number of elements. The quagi has won three consecutive 2-meter antenna-gain contests at West Coast VHF Conferences with measured gains up to 14. It has excellent gain and front-to-back ratio. CDR TR-44 Antenna Rotor Control Meters, Lot of 2. The goal here is to put up a cheap, easy, and quick 2-meter antenna that is simple and unobtrusive, but works. 2 Meter Mobile Antenna Tuning. But, handling a 2. Construction You'll need hangers that are 16 inches wide; the 18-inch kind because they ca not be tuned to 2 meters. The 40 meter 2:1 SWR bandwidth effectively covers the entire band. I've heard Tim (HLR) and others talking about it, so this morning just before work I fired up the Flex 1500 (5 watts outpoot) and using a 220 Ft long flat top at 90 Ft, I was able to work 2 Italian stations, the Ukraine, and Germany through modest pileups. Ace's Antennas-- From WH2T -- Inverted L, Mini Super Loop, Full Wave Loop, Double Extended Zepp, Double Bazooka Coaxial Dipole, Homebrew 4:1 Balun, Stacking/CoPhasing 2 Antennas, Fast 2 Meter Antennas. The supplied stacking boom was only 9-1/2 feet long. New and experienced hams will enjoy 15. For a 2 meter f = 146 MHz J-Pole antenna, the 1/2 wavelength radiating section (Section A) is equal to A = 0. 50MHz, 144MHz and 432MHz Gain and G/T Simulations by VE7BQH. 2 Meter Bobtail Beam Attic Version For Restricted E2 Meter Attic Antenna Image Balcony AndMounting And Using My 2 Meter Antennas Part 1 W7kbx2 Meter Attic Antenna Image Balcony AndMounting …. Rotor-EZ offers full support for antennas set at 90° to the main antenna. PIC Solution PIC Processor $5 MAX232 $1 MCP6002 $1 AD9850 Board $4 RF Connector $1. • A 1/2 inch 10 foot PVC pipe • 3 1/4 inch x 36 inch Aluminum rods • 2 1/4 inch x 48 inch Steel rods (I know they'll rust, it's just temporary to get it to work, I'll get aluminum later) I don't have any coaxial cable (don't know the best type to get) and don't know how to match the impedance of the cable to the antenna. Harris - Stack tri band J-pole QST 1980 Suffers the same problem of 2 mt section radiating at UHF. I used 2 meters of PVC tube of 4 cm diameter as a temporary mast, stuck into a heavy umbrella stand (see Fig. I would love a pair of 17B2's or even a pair of the 13B2's. The higher gain antennas have a lower vertical beamwidth. Antenna performance and 2:1 VSWR bandwidth is site dependent and varies with height above ground and surrounding objects. Enter the desired frequency then click on Calculate and the optimum values for that combination will be displayed in feet, inches and fractions of inches, and in meters. Antennas are simply lengths of conductive metal that radiate radio signals into the air. The author is a technical editor in the Engineering & Research Division of the Winegard Company. Have it this way for almost 20 years. A crossed-dipole turnstile antenna for 2-meter ARDF. Name: Steve Email: _____ Ask your HD Stacker TV antenna question: I have a stacker, I am trying to talk a friend into one. This unit features quick-detach elements to facilitate for easy and fast disassembly of the antenna. com in a single category. Next step for me is a 10 meter antenna - I haven't decided what to build yet. BUILD THE J BEAM FOR 2 METERS AND UP! Condensed from an article by Ed Bathgate, N3SDO as published in CQ VHF Magazine July, 1988 and used with his permission. The blue line indicates the standing wave ratio for the stacked 2 meter halo antennas is less than 1. The big rotor controls are for the 3 element yagi's. I have a UHF/vhf combiner, but my brother did not want to buy a rotator , so I used a 2 way splitter. 5 dBi forward gain; the advantage being moderate forward gain, with reduced rear gain,. I proceeded to make a very heavy dipole from copper pipe, akin to the type used for J-poles. The antenna is basically a quad opened up on the bottom. There are not many complete 2 way stacked dipoles on the market and certainly not at the price we sell this one for. 5/5click here to see their performance reports. One user was so elated with the performance of the mobile whip that they pieced together a base antenna that used the mobile whip as its radiating element. The antenna you already own is assumed to have the SO-239 connector on the right side.