5 band dipole

110 links

Squarooka Antenna - squared bazooka for 2 meters band - Sort of similar to the one of the 6m omni. Instead of using twin-lead, this design makes use of a more or less regular double bazooka antenna (coaxial dipole). Your attention shall be drawn to the available standart literature, such as Rothammel. In order to "compute" the dimension, Karl Rothammel mentioned that the total length of the dipole shall be 95% of the free-space wavelength. The short-circuit bridges (closing the folded dipole) are to be placed at a distance-fraction being equal to the velocity factor of the coax cable used, which will be 66% using RG-58 or RG174.
[ Hits: 356 | Votes: 0 | Rating: 0 ]

Linear Loaded 40m Dipole - Dipole for 40m band. It is a simple linear loaded dipole feeded with 450-Ohm openwire feedline. Designed it for resonance at 7.050 MHz, can be tuned on 30m and 80m bands with an external antenna tuner. Build with simple electrical copper wire (2.5 mmq/13 awg) and two fishing poles with size of about 7 m/23 ft.
[ Hits: 162 | Votes: 0 | Rating: 0 ]

6 metre SOTA Antenna - A simple and light vertical coaxial dipole for 50-52 MHz band, designed for portable SOTA operations based and inspired by the VK2ZOI flower pot antenna
[ Hits: 165 | Votes: 0 | Rating: 0 ]

Buddipole as a J-Pole for 50 MHz - How to setup and configure the buddipole antenna in the J-Pole mode for the six meter band
[ Hits: 303 | Votes: 0 | Rating: 0 ]

An Antenna for 75 and 80 Meters Band - A trap antenna dipole covering two differen bands made reusing an old 160/80m inverted vee antenna.
[ Hits: 319 | Votes: 0 | Rating: 0 ]

How to Blow Up Your Balun - In this article, author examine stresses placed on common-mode chokes (aka baluns) as hams use/abuse them, examine the efficiency of simple dipole multi- band antennas and their feed systems. Stressing a Balun.
[ Hits: 387 | Votes: 0 | Rating: 0 ]

Quad Band Inverted V Antenna - An inverted V Dipole antenna for HF bands, working on 10 20 40 and 80 meters band. PDF Presentation
[ Hits: 383 | Votes: 1 | Rating: 7 ]

The Ramsay Dipole for 40 20 15 meters - A multiband Fan Dipole that works on 40 20 15 meters band, making a folded dipole for 7 MHz band and additional element for the 21 MHz and 14 MHz
[ Hits: 402 | Votes: 4 | Rating: 8.75 ]
Modeling an 80/40/20M Fan Dipole for DX - An interesting presentation of a real multiband Fan Dipole antenna, optimized for better DX operation performances, considering the terrain, position, DX destination path and other influencing factors
[ Hits: 539 | Votes: 2 | Rating: 5.5 ]
Fan Dipoles 10/15/20m and 12/17/30m - How to build Fan-Dipoles by DK7ZB. Experiences with various band combinations. Not all combinations are working properly. If the frequencies are to close together the impedances will lead to a very bad SWR. This happens with the bands 10-12-15m or 15-17-20m.
[ Hits: 488 | Votes: 2 | Rating: 9.5 ]

Build a twin-lead Lindenblad Antenna for 70cm and 2m - This document contains the detailed instructions to build a homemade lindenblad antenna using a twin-lead as dipole elements. This document contains 9 pages and includes a detailed construction sequence and some drawings to build this antenna for UHF and VHF ham radio bands
[ Hits: 1279 | Votes: 3 | Rating: 8.67 ]

Quad Loop Antenna for 50 MHz - Building A Full-Wave Quad Loop Antenna for 6 Meters. This is an easy antenna to build and the materials cost about $15-20. It exhibits 1.8dB gain over a 1/2-wave dipole. Using an open-wire parallel feedline (commonly called ladder line) with an antenna tuner, it tunes up on the 10m band as a 5/8-wave loop as well
[ Hits: 199 | Votes: 1 | Rating: 1 ]

ZS6KMD 20-40m Multiband Dipole - The dipole shown in this document is installed in an inverted Vee configuration, with two leg elements on each side held parallel to each other by 21cm spacers. The upper leg is for 40m and the lower leg for 20m. The spacers are made of 7mm plastic garden hose support for garden sprayers cut to 21cm.
[ Hits: 532 | Votes: 0 | Rating: 0 ]
Multiband trap dipole - This antenna is a classical antenna working on 7,10,14,18,50 MHz is implemented with three traps for 30, 17 and 6 meters
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The Off-Center-Fed Dipole Antenna - The OCFD Off-Center-Fed Dipole Antenna is an excellent multiband antenna that is relatively simple to construct, yet gets quite decent performance.
[ Hits: 328 | Votes: 2 | Rating: 9 ]
The M0CVO HW-42HP OCF Antenna - A multi-band off centre fed dipole, designed to operate on all bands from 40m (7MHz) to 6m (50MHz). Author claims it will operate on 40, 30, 20, 17, 15, 12 and 10m without an ATU (SWR <3:1) plus 6m with an ATU.
[ Hits: 274 | Votes: 0 | Rating: 0 ]

Linear Loaded Dipole for 15m and 20m - A small dipole antenna installed inside a balcony. This linear loaded short dipole antenna has been designed at first for the 21 MHz and then adapted for the 20 meters band.
[ Hits: 625 | Votes: 2 | Rating: 4.5 ]

T2FD Antenna - Terminated and twisted folded dipole - T2FD is a 600-900 ohms folded dipole, terminated with resistor. Feed impedance is coupled with 50/600 ohms voltage balun. It is a wide band antenna with rather low SWR over the full designed frequency range: antenna tuner is seldom needed.
[ Hits: 488 | Votes: 0 | Rating: 0 ]

W3DZZ Multiband Antenna - An easy to build and extremely high performance antenna, works perfectly on all HF bands 3.5-28 MHz with some compromises, it is basically an half wave dipole for 40-80 meters, an LC circuit or trap 40 meters allows you to use a single radiating element.
[ Hits: 464 | Votes: 3 | Rating: 7.67 ]

Buddipole Dipole Assembly - Rob, VK5SW shows the simple assembly of the portable Buddipole multiband dipole antenna.
[ Hits: 91 | Votes: 0 | Rating: 0 ]