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Query: J Pole
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- Antennas > 20M > 20 meter Dipole Antennas
- Antennas > 40M > 40 meter Dipole Antennas
- Antennas > 6M > 6 meter J-Pole Antenna
- Radio Equipment > HF Portable Antenna > Buddipole
- Antennas > C-Pole
- Antennas > Dipole
- Manufacturers > Antennas > HF > Dipole Antenna
- Antennas > Fan Dipole
- Antennas > Folded Dipole
- Antennas > J-Pole
- Antennas > Resonant Feedline Dipole
- Antennas > T2FD
- Antennas > Wire
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A Lindenblad Antenna for 145 MHz and 435 MHz with an integrated 50 MHz J-pole
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A short dipole wire antenna for 40 meters band. It is a folded dipole that do not make use of coils and can be used either in horizontal or inverted V configuration
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Understanding Gain differences, j-pole and end-feed vertical antennas.
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This article document a 2 element half wave collinear J-Pole antenna by KC9EOT and KB8OJH
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A trapped dipole antenna based on the orignal W3DZZ antenna design resonating on 80 40 20 15 10 meters
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Although a magnetic loop antenna(aka small loop antenna) is very compact, its efficiency is close to a half-wavelength dipole if carefully built.
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A 40/80 meters dipole made with two loading coils based on a project by IK1ZOY
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Construction details of a multiband dipole that can can operate at high power levels, and match its 50-ohm coax feedline without a tuner
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This article explores the Cobra Junior linear loaded antenna for 80m to 10m bands. This antenna is a linear loaded dipole described by W4JOH in 73 magazine June 1997
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A simple center-fed dipole made just with a thin-wall PVC pipe, aluminum tape, and RG-8X coax
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A New Twist on Portable Multiband HF Dipoles, a Multi-band Spiral Dipole Off-Center-Feed match (OCF) antenna solution.
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A bowtie antenna is a type of antenna that reputedly provides higher gain at lower radiation angles than a center-fed dipole antenna at heights considerably less than 1/2 wavelength above ground.
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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
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An homemade portable trapped dipole antenna for 40 and 80 meters band with an optional extension for the 20 meters.
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A javascript online calculator for popular wire antennas, from the standard easy to build flat-top dipole, to the inverted V dipole, but also the Quad Loop, and the equilateral delta loop antenna
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Centre fed half wave dipoles make great, simple and effective antennas for the HF bands. Sometimes however, the centre feed is not ideal. This great project will improve the overall antenna performance.
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An easy portable VHF antenna to build for ARES - RACES work is the 300 Ohm Twin Lead JPole antenna
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Located in southern Ontario Canada, supplier for HF VHF antenna kits, aluminium tubing, portable j-pole antennas, lightning suppressors, connectors and adapters
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The Folded Dipole is not used much amongst Radio amateurs, probably due to the fact that this antenna uses twice as much wire as a single-wire dipole.
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Multi-band loft-mounted dipoles for 40, 20, 17, 15, and 10m
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Extension to an existing fan dipole originally modeled for 40 20 and 6 meters. This modification will add 80 15 and 10 meter bands.
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Interesting article on multiband fan dipoles. This article give an overview on designing this wire antenna, and planning a robust installation and proper feed line. Includes notes on setting up a commercial fan dipole antenna and on how diy your own.
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A very basic guide to antennas concept. Explain the usage of dummy load, basic antennas like dipole o j-poles.
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An home made vertical dipole antenna made with simple material. The antenna has a total length of aproximately 16 feet. In this article appeared on June QST 2019, the author explain how he reached the optimal confirugation changing and adjusting the lower part of the antenna, trimming and spacing correctly the copper wire. PDF File to downloas
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This short dipole antenna has been described by Nadisha, 4S7NR and may be of interest to anyone wishing to get on 80M (3.5MHz) that have limited space available.
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A scanned PDF of this interesting book on HF Dipole antennas published by Stanford Research Institute
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Unlocking the full multiband potential of the 225 Ohm elementary radiator in a folded monopole, dipole-like or turnstile layout, by Francesco Errante
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An off centre fed dipole, with 10 feet of vertical radiator. It needs no tuner on 40m, 20m and 10m by M0UKD
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A Unique VHF Antenna with gain over a J-Pole Jose I. Calderon, DU1ANV
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Antenna support masts, towers and HF antennas, pneumatic masts, push-up masts, antenna masts and mounts, poles, antenna systems, dipoles, portable, nvis antennas
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17-Element Very High Frequency/Ultra High Frequency Log Period Dipole Array
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Build an effective dipole antenna that needs much less space by adding two loading coils. This online calculator tells you how.
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A simple and awesome wire monoband antenna, very usefull for portable and dxpeditions usage, consist of two elements, a driver and the reflector. This endfed halfwave gives a very low take off angle and is very suited for chasing DX.
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All antennas that are situated close to the ground are affected by that ground to some extent. This article explain effects and benefits of counterpoise.
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Wide bandwidth Trapped Verticals and rotary dipoles, baluns, 40m/80m wire dipoles and accessories from Australia.
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The antenna build into this project is made from 2 fishing poles on a fiberglass pole in the center.
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The G7FEK Multi-Band Nested Marconi Antenna, a small, efficient all-band antenna.
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The page provides a project for an helical dipole for the 40 meters band, resonating on 7 MHz, created by PY1ZFK based on a design by DL8VO. It includes detailed instructions on building the antenna.
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The _Italian VHF Beacons_ resource provides a detailed listing of active and QRT amateur radio beacons operating across VHF, UHF, and SHF bands within Italy. Each entry specifies the beacon's callsign (e.g., IQ1SP/B), operating frequency (e.g., 144.411 MHz), QTH locator (e.g., JN44VC), effective radiated power (ERP) in watts, and antenna configuration (e.g., Big Wheel, 4x Dipole, Yagi). This data is crucial for radio amateurs involved in propagation studies, equipment testing, and long-distance (DX) communication on these higher frequency bands, offering fixed signal sources for monitoring. This compilation, last updated in October 2005, serves as a historical snapshot of Italian beacon activity. For instance, it lists several 144 MHz beacons with ERPs ranging from **0.1W** to **10W**, and higher frequency beacons such as I8EMG/B on 1296.880 MHz and I3EME/B on 24192.132 MHz. The inclusion of QRT (Quiet Radio Teletype) status for many entries indicates the dynamic nature of beacon operations over time. Users can utilize this information to identify potential signal sources for band openings or to calibrate their receiving equipment against known transmissions.
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This handy and cheap portable dipole can be folded and backpacked, carried in use, and adjusted to a very wide range of frequencies by KV5R
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Classical coax-fed, off-center-fed dipole, feeded with a 4:1 Guanella balun