The calculator can be … Whether going for a walk, or backpacking, you may be interested in a portable antenna solution, this is a full size 3/4 wavelength co-linear antenna, with 75 Hello all, I have been looking for a dual band homebrew antenna with some gain for sometime and came across the Dual band …. 36 mtrs high! This small and thin design also makes it good for several stealth applications. Alternatively, for permanent installations, the copper tube … Comet GP-9N dualband base station antenna with 8. 147. View the plot here. 0-2. com), for 2m + 70cm: It's called the "Experimental Dua The design shown below is for a bonded beam, meaning the elements are electrically connected to the boom at the element centre. I’d like it if the antenna lasts … Wire Collinear for 2 Metres By WB3AYW A nice 2 metres 5 stage wire collinear, matched j-pole style to be hung from a tree - or up a GRP fishing pole i guess - it's around 7. In selecting a design, certain factors like portability, ruggedness, compactness, signal gain … Coaxial collinear Wi-Fi antenna. Jpole or a flower pot or a … We would like to show you a description here but the site won’t allow us. With … Simulating a Super J-Pole: A 2m Antenna Analysis. amateur radio band. All due respect to Carl and his wonderful J-pole, this little gem will actually outperform his an-tenna because it’ll … This antenna project will allow you to design a collinear antenna for either the 2 meter or the 70cm (440) ham band that will give you lots of gain using … This antenna boasts a sleek design and durable construction, making it … The quarter-wavelength Coaxial Collinear antenna is an elegant experimenter’s project — blending RF theory and practical design. So I built a simple flower pot antenna from PVC pipe and coax. I adjusted the half wave and quarter wave sections … We would like to show you a description here but the site won’t allow us. Tri-Band 6 Meter - 2 Meter - 440 Collinear Vertical by W7LPN - A Heavy Duty Fiber Glass Antenna The Northern Virginia team of Ham Radio operators and companion hikers manned Hawksbill Mountain for the 2011 Appalachian Trail Golden Packet event. 5 dB … Build A 9 dB, 70cm, Collinear Antenna From Coax Build A 9 dB, 70cm, Collinear Antenna From Coax Recently the RASON technical committee … This antenna project will allow you to design a collinear antenna for either the 2 meter or the 70cm (440) ham band that will give you lots of gain using … CO LINEAR ANTENNA DESIGN antenna for average use. 5 dBi gain on 2m and 11. TRY IT! Design your J Pole for hf, 2 meters, … Wire Collinear for 2 Metres By WB3AYW A nice 2 metres 5 stage wire collinear, matched j-pole style to be hung from a tree - or up a GRP fishing pole i guess - it's around 7. Several pictures of radiation pattern of … Best DIY 2m/70cm antenna I'm a new operator and I've already got a self-made ground plane for 2m band but I wonder if different designs could be more efficient. 4K subscribers Subscribed About 6 months ago I thought I'd try one of these - 2m coaxial collinear vertical. The calculator can be … VHF/UHF Yagi Antenna Design Design your VHF UHF Yagi antenna online, a JavaScript enhanced web page that implements the … There is also a description on how to construct the phasing coil for 2m collinear J-pole antenna. The image … Three element collinear array for the 2m amateur band using 3D printed parts Photo 1: The vertically mounted 2m band experimental three element collinear array shown near a 5 … A warning ahead: the following is a YMMV project. 2 sets of ¼ … J-Poles -- From The ARRL Super J-Pole Antenna (Collinear Design) - By KB0YKI 2M, 220, 440, 6M J-Poles Antennas -- Dimensions, matching, everything -- from Bux CommCo -- Be sure to … If you want an omni directional antenna but still with some gain look at building a 2 meter collinear antenna. Great antenna. Built from durable fiberglass with built-in lightning … Homepage van Maarten Ouwehand PG1NCreation date : 08/09/2018 @ 18:03 Last update : 02/12/2025 @ 23:15 Category : 70cm … 2 m. 58dBi … The main criteria for the design was to provide an antenna with a great low SWR from 28. 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I’d like it if the antenna … The Diamond X-510N is a premium-grade vertical antenna designed for fixed station use on the 2-meter (144 MHz) and 70-centimeter (430 MHz) … When building my first collinear using this design, I made the loops in a similar way to those seen on many commercial antennas which … Build A 9 dB, 70cm, Collinear Antenna From Coax By N1HFX Recently the RASON technical committee was hard at work at the repeater site repairing our 2 meter repeater antenna. Can anyone point me towards a design they can reccomend for use … The 2 Meter Collinear J Pole Antenna Project by Sean M3FVB Get ready for field day, mountain topping, emergency communications, roaming or just … Indeed, although many folks like to bandy the gain advantage of a collinear arrangement as 3 dB greater than a single section, we rarely obtain in real antennas more than about a 2. This is a long article We’ve all bought one [well most of us]. Same length, if cut into pieces of length (λ/2 * VF), and these pieces … Reviews For: Tram 1480 VHF/UHF Collinear Base Antenna Category: Antennas: VHF/UHF+ Omnidirectional: verticals, mobile, etc eMail Subscription Registered users are allowed to … Building instructions for the WB3AYW Collinear This instructions below have been updated from an older version for Two meters only. ” In a Coaxial Collinear antenna design, the … A Slim Jim for 2m (145MHz) will be 1. The antenna was an interesting design with a shorter, rotatable V from the center where a longer radiator for 2m extended … Where it fails is in mechanical design: it is around 2. 700MHz thus giving the constructor full … Mounting your collinear on top of your tower will give you an omni-directional pattern. This article describes a 5-element collinear antenna design for the 2m band, its … 2m Collinear 1Kw+ VHF Vertical That Will Last. Find tools for building log periodic, … The ARRL Antenna Book additionally contains plans for a mobile 1/2 wave collinear J-Pole constructed from a CB whip and stainless hardware, … # **Wire Collinear for 2 Metres By WB3AYW** # A nice 2 metres 5 stage wire collinear, matched j-pole style to be hung from a tree … 2 meters copper tube antenna, tested with an Icom IC-V8000 A turnstile antenna for 2-meter ARDF Antenna design for use with hidden … Covers 138-175 MHz 2 Meter vertical with 5. In selecting a design, certain factors like portability, ruggedness, compactness, signal gain … A length of coaxial cable radiates negligible amount of RF. Homepage van Maarten Ouwehand PG1NCreation date : 21/03/2008 @ 22:39 Last update : 28/11/2025 @ 21:48 Category : 2m Projects Page … There are many different collinear designs i have seen online but many designs i have found are for 70cm band or ADS-B. Low ‘Z’ 12. 5ohm [Vortex]. This article describes a 5-element collinear antenna design for the 2m band, its … Mike's original design was featured in an earlier article in the May 1982 issue of 73, titled "Omni-Gain: A Collinear for 70 and 23 Cm. FYI -- … The traditional collinear J-Pole, aka Super J-Pole Antenna, improves the basic J-Pole. Great for locations where visual impact is a problem, this antenna gets you on the 4 … Everyone has to make their first antenna. 2m long and the PVC plumbing pipe is just too flexible. Gear included a … 1 This is the insides of a common dual band antenna 2m/70cm, made by diamond or nagoya. 9 dBi on 70cm. Plans, instructions and parts list. Band VHF Collinear with 2 Dipoles This page is the second part of my VHF Collinear antenna project with matching-system for 2 dipoles model … 10 votes, 39 comments. The W7LPN Collinear 2m/440 bing, even foil or mesh hardware cloth. NOTE - TAXES AND FREIGHT CHARGES EXTRA AT ACTUALS. Having simulated and then built quite a few, I find that they always … Coax collinear Antenna dimension calculator Back to Antenna calculator overview. Are further improvements possible? By … Simple stacked J-pole for 2M & 70cm Following the death of my cheap fibreglass tri-band collinear, I decided to have a go at … Diamond 2m base vertical collinear antenna, Radioworld UK offers the high-quality product designed for optimal performance in the 2-meter band. Alternatively you can assemble the feeder and balun, terminate it with a … The choice of a certain design for a particular application is left to the decision of the constructor. It is a very forgiving design as to construction mate ials and slight dimensional variations. 2m in length. 2 dBi gain derived from the famous extended double zepp antenna design. 4m 7 Elements Yagi. Explore high-performance dual-band VHF/UHF antennas like the X-30N, X-50N, X … Collinear Dipole Antenna Calculator - Calculate Antenna Dimensions This page offers an online antenna designer to calculate the … The W7LPN 2 - 440 Vertical Collinear Antenna Project with a 6 Meter Surprise! by W7LPN ~ Rick Frazier UPDATE! Download the updated and … A coaxial Collinear antenna for 2m and 70cm mostly made from junk bits and pieces for less than £1 Oxford Shortwave Log 11. … Coaxial Collinear Antenna – Basic Concept A collinear antenna means “ elements in line. Having researched similar designs I was presented with many options in terms of How To Build A 2 Meter Vertical Antenna I needed to replace my old 2 Meter vertical antenna for the 146 mHz. 6. its generally labelled as: 1/2 wave radialless … A Tree Friendly 2 Meter Halo Antenna Having purchased an all-mode, all-band (160m - 70cm) transceiver, I became curious about what 2-meter … (Collinear Design) A calculator for deriving the lengths of tubing to be used for the construction of a Super J-Pole Antenna. I used 75 Ohm coax seeing I had tons of it. Design, calculationThe vertical collinear antenna is an omnidirectional high gain antenna. 36 mtrs high! Shop Diamond 2m/70cm vertical antennas at Radioworld UK. 5 dB … Learn all about J-Pole antenna design in this in-depth tech article, including its history, construction & best ham operating performance. Coax Comes … Not to knock this particular design, but there are a lot of collinear designs out there. The half wave … (Collinear Design) A calculator for deriving the lengths of tubing to be used for the construction of a Super J-Pole Antenna. I'm currently attempting to improve my ADS-B coverage by building a coaxial collinear antenna, made from RG59 coax, as per this video… At least the Collinear 5/8 Wave J-Pole works, but it seems clear with the admittedly simple EZNEC simulations above, your wire … HAVE FUN DESIGN YOUR OWN J POLE FOR ANY BAND! (Try it with aluminum too!) Either way. The UMS G-5/8 is a 2 meter monoband ,2-5/8 wave length ground plane antenna, … If you do not have the luxury of a GDO, then you can build my design. The ‘ White-Stick ’ VHF and UHF verticals … Simulating a Super J-Pole: A 2m Antenna Analysis. It is … The Super J Pole antenna is a co-linear vertical consisting of a number of half wave length vertical elements separated with half-wave length stubs … Google “2m collinear antennas” and you’ll find a number of plans for building one. truewouldn't a vertical dipole be among the most obvious choices? A vertical dipole would have to have a feedline running away from it horizontally, which is a bit … Indeed, although many folks like to bandy the gain advantage of a collinear arrangement as 3 dB greater than a single section, we rarely obtain in real antennas more than about a 2. This article describes a collinear antenna made from very inexpensive RG58/U coaxial cable nd encased in PVC pipe. But not just any 2-meter antenna; a super 2-meter antenna, called a collinear. 5 metres long, and 70cm (433MHz) will be 0. One … This is a very simple, yet effective 2m antenna made entirely of RG-58 coax. 000MHz to 29. 5 metres. Build a 2 Meter 5/4 Wave Antenna This antenna is unique in that it is enclosed entirely in 3/4" PVC … In the October 2023 edition of Practical Wireless magazine, renowned columnist Keith Rawlings (call sign G4MIU) authored an article titled … Antenna projects for 144 MHz, a curation of 173 useful links about 2M Quad band 6m/4m/2m/ and 70cm colinear only 1. I did Google “2m collinear antenna and found a … Where it fails is in mechanical design: it is around 2. The Northern Virginia team of Ham Radio operators and companion hikers manned Hawksbill Mountain for the 2011 Appalachian … Collinear Antenna Calculator is a linear array of dipole antennas, aligned along the same axis to increase directional gain. It has … Here is a Tri-Band 6/2/440 Collinear antenna that if built properly, using the materials suggested by the author, should give you years of service. … Explore a variety of online antenna calculators for designing and calculating antenna dimensions. For t is design I have used PVC … THE N4UJW ANTENNA PROJECTS DESIGN LAB THE BEST HAM RADIO OPERATORS HAVE GOOD ANTENNAS! You can't work them if you … [Vortex].
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