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Query: 4 meter antenna
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- Antennas > 20M > 20 meter Dipole Antennas
- Antennas > 20M > 20 meter Yagi antennas
- Antennas > 40M > 40 meter Loop Antennas
- Antennas > 40M > 40 meter Magnetic Loop Antennas
- Antennas > 6M > 6 meter Moxon Antennas
- Antennas > 6M > 6 meter Yagi Antennas
- Antennas > 20M > 20 meter Vertical Antennas
- Antennas > 40M > 40 meter Delta Loop Antennas
- Antennas > 40M > 40 meter Dipole Antennas
- Antennas > 40M > 40 meter Vertical Antennas
- Antennas > 40M > 40 meter Yagi Antennas
- Antennas > 6M > 6 meter J-Pole Antenna
- Antennas > 10M
- Antennas > 12M
- Antennas > 15M
- Antennas > 17M
- Antennas > 20M
- Antennas > 2M
- Antennas > 30M
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- Technical Reference > Arduino
- Radio Equipment > HF Vertical Antenna > Butternut HF2V
- Technical Reference > Test Equipment
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A six meter Moxon rectangle antenna. Includes high definition pictures and a detailed drawing by KG4JJH
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Yet another G5RV antenna plan to build a G5RV Antenna for 80 to 10 meters usage
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A three element wire yagi antenna for 7 MHz project plan with drawings and EZNEC model
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A folded wire antenna for 160 meters as appeared on 73 amateur radio magazine june 1997
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A vertical antenna project than can present low swr from 40 to 10 meters by using a balun in french
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A portable 4 elements quad antenna for 144 MHz, 9 to 10 DBd forward gain, 30 DB front-to-back ratio, and 33 DB front-to-side ratio
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This antenna consists of 4 resonate dipoles made from 12 insulated copper electrical wire. The dipoles are resonate on the following bands: 6 meters, 10 meters, 12 meters and 17 meters.
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A copper pipe Hentenna for 144 MHz. The Hentenna, a compact, high-gain loop antenna developed in Japan in the 1970s, offers approximately 5.1 dBd gain, comparable to a three-element Yagi. Adapted for 2 meters, it is crafted from copper pipe for simplicity, affordability, and broadband performance. Requiring no feed-point tuning, its construction involves soldering standard copper fittings. Installation demands non-conductive materials to minimize signal disruption. Versatile for vertical or horizontal polarization, it is ideal for FM, repeater, SSB, or CW applications. This design emphasizes practicality and performance for amateur radio enthusiasts
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A home made vertical polarized moxon antenna for 144 MHz, includes dimensions, antenna pattern, SWR and antenna gain plots by WB5CXC
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VA3EXT 5 element beam antenna for 6 meters band
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A delta loop antenna for 6 meters band with SWR diagram , construction plan and some pictures by IZ8EWD in Italian
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An efficient 2 meter antenna disguised as a TV Satellite dish. This vertically polarized horizontal slot antenna, cut into the reflector of a TV dish, might be the ultimate stealth antenna.
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An 85ft wire fed against a 17ft counterpoise that works well in 80 and 40 meters
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This magnetic loop is 78cm diameter, with the smaller Hertz loop for tuning. Feeding is by gamma match.
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Very compact and high efficiency antenna ,very low radiation angle even at low height.
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Excel spreadsheet that help calculating dimensions of a high efficiency magnetic loop antenna for HF bands. Giving in input the loop perimeter, loop diameter and loop conductor will calculate electric characteristics, bandwidth, and efficiency
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A multiband dipole antenna that can work on 15 20 and 40 meters band made with common materials
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This vertical antenna consist of a 18 meters telescopic pole and allow operations from 160 to 30 meters band, project by Daniel Zimmerman N3OX
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Anyone attempting to work DX on Top-Band 160 Meters, soon learns of the need for a good receiving antenna. This is a 160 meter 8 element receiving array.
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A project for a homemade multiband Hexbeam antenna for 10, 12, 15, 17 and 20 meters
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An interesting article with many technical details on a phased delta loop array for 80 meters band includes pictures of antenna relays
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This low power transmitter is developed for ARDF exercising purposes but of course can be used as super QRP transmitter either. With 1 or 2 meter wire as antenna and a ARDF receiver with ferrite-rod antenna the range is about 100m but with better antennas and a 'real' receiver the range is probably much larger.
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A simple 7 bands off-center dipole wire antenna designed to work on 80 meters band and that can cover also 40m 30m 20m 15m 12m 10m with acceptable SWR
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A 2 meter antenna made of copper tubes, offering circular polarization
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A five element quad antenna for 144 MHz DIY Project. This 2 Meter 5 Element Quad antenna was modeled using EZNEC, with a boom from a UHF TV antenna and CPVC pipe for spreaders. Constructed for 146MHz, it exhibits a gain of 10.7dB and an impedance of 75 ohms. Real-world results surpass the HT antenna, reaching over 20 repeaters up to 75 miles away. The design, costing around $10, employs simple tools for assembly.
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A moxon antenna for 11 meter band, suitable for 27 Mhz and 28 Mhz
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This HALO design is not ground dependent and can be mounted atop a section of PVC.
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Tuning the Solarcon Antron A-99 antenna for 20 meters band
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A 10 meters band Slim Jim antenna project, made with a 450 Ohm slotted ribbon cable and secured on a 8 m fishing pole, by Steve G0KYA
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W4ZT used this antenna for Field Day and other portable applications. He built them for all bands between 160 meters and 6 meters. You can make them easily using whatever wire you have available and make the insulators from scrap plastic
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The WT0G crazy W dipole, a solution for 160 meter operations
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A 2 element yagi wire-beam antenna for the 20 meter band based on the KJ5VW design
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Compact and efficient magnetic loop antenna that cover from 40 to 10 meters project by G8ODE published by RSARS
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A vertical portable antenna system by W0SJS that will work on 40, 30, 20, 17 and 15 meters
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A 160 meter antenna with a base loading coil used to tune the two lower frequency segments of the band.
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A club project experiment about a vertical Moxon antenna for 20 meter band
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A 7MHz Full wave loop antenna in diamond shape for field day operations made with three 31 foot Jackite poles
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How to homebrew a ENVIS antenna for 80 and 40 meters band
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Whether we are tuning up homebrew equipment, checking antenna VSWR, adjusting a linear amplifier, or just monitoring output power during a contest, almost all aspects of ham operation can use a power meter. Paul Wade W1GHZ
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Based on original G2BCX design this J-Pole antenna for the six meter band is made with a homemade ribbon cable. The antenna shown in this article includes a coaxial cable choke feed to remove RF currents from flowing on the outer of the cable.
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An easily transportable vertical antenna for 20 meters collapsible to 4 feet
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An home made SWR meter for 2.4 GHz. A DIY SWR meter that allow precise measurements and calibration of any WiFi antenna. This is test equipment everyone who build wifi antennas should have in their shack. Article is in french and include some videos.