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Query: Antenna
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- Antennas > 20M > 20 meter Dipole Antennas
- Antennas > 20M > 20 meter Vertical Antennas
- Antennas > 20M > 20 meter Yagi antennas
- Antennas > 40M > 40 meter Delta Loop Antennas
- Antennas > 40M > 40 meter Dipole Antennas
- Antennas > 40M > 40 meter Loop Antennas
- Antennas > 40M > 40 meter Magnetic Loop Antennas
- Antennas > 40M > 40 meter Vertical Antennas
- Antennas > 40M > 40 meter Yagi Antennas
- Antennas > 6M > 6 meter J-Pole Antenna
- Antennas > 6M > 6 meter Moxon Antennas
- Antennas > 6M > 6 meter Yagi Antennas
- Manufacturers > Antennas > HF > Active antennas
- Software > Antenna analysis
- Manufacturers > Antenna Analyzers
- Radio Equipment > Antenna Analyzers
- Antennas > Antenna Books
- Antennas > Antenna Calculators
- Antennas > Theory > Antenna Gain
- Technical Reference > Antenna Launcher
- Manufacturers > Antenna Launcher
- Manufacturers > Antenna Masts and Mounts
- Shopping and Services > Antenna Mount
- Manufacturers > Antenna Parts
- Shopping and Services > Antenna Parts
- Technical Reference > Antenna Rotator
- Manufacturers > Antenna Rotators
- Software > Antenna rotor control
- Technical Reference > Antenna Switch
- Manufacturers > Antenna Switches
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Examines the operational differences between **quad** and **Yagi** antenna designs, focusing on their respective performance characteristics for amateur radio applications. The document highlights key metrics such as forward gain, front-to-back ratio, and bandwidth, which are crucial for effective DXing and contesting. It discusses how element configuration, boom length, and material choices impact the efficiency and radiation patterns of each antenna type across various HF bands. Practical considerations for antenna builders are addressed, including structural integrity, wind loading, and overall weight, particularly when using fiberglass spreaders for quads. The resource also covers precipitation static reduction in quads due to their closed-loop design and their ability to operate efficiently at lower elevations compared to Yagis. It provides insights into dual-polarization feed systems for quads, offering independent vertical and horizontal feed points for enhanced operational flexibility.
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How to build a beverage antenna. How to deploy a BOG antenna for your next SWL DX-ing activity. Give it a try and follow the orientation tips for this bi-directional antenna.
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A simple and cheap dualband j-pole antenna for 144 and 430 MHz
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This antenna was designed by N6JSX Kuby for Transmitter hiding. Fitting the requirements of directionality, high gain, and portability. This antenna was derived from the ARRL Handbook information on Quagi's and Yagi's; in the absence of two meter Quagi information, UHF Quagi dimensions were scaled into 146 MHz use.
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A vertical antenna for stationary-mobile HF-VHF operation. It works on 2-6-10 and 12 meters band.
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The calculation refers to either a loaded 1/4 wave or a loaded dipole,
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Picture collection of a whip antenna similar to the Whip Miracle, in italian
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Types of beverage wires, choose best supports and insulators, multiple antennas at one feedpoint, all well documented with photos and exaustive explanation. This article offers insights on building Beverage antennas for optimal reception. Key takeaways include using strong wire (copperweld or electric fence), proper termination, and a good grounding system (multiple copper rods). The author recommends maximizing antenna length and orienting it towards desired stations. For best results, utilize an antenna tuner and experiment with termination resistors.
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PKW Antennas for ham radio bands, Quads, delta loops, log periodics antennas for military and professional use by Ditta Martelli fabbrica italiana antenne
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a simple, low-cost, trapless short vertical antenna which amazingly works on three HF bands (20, 15 and 10 meters)
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Car mount magnetic loop antenna plans from 3.5 MHz to 7.5 MHz, LA6NCA, Larvik, Norway
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To build this antenna you need a lot that is at least 100 feet across. Antenna covers all bands 80-10 meters + 30, 17, 12 meter WARC Bands
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A new perspective on the analysis and design of this popular antenna element. By Karl-Otto Muller, DG1MFT
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M1IOS Wonder Whip antenna - The M1IOS Wonder Whip A 10 dollars QRP Portable Multiband Antenna for HF, VHF and UHF A variation on the Miracle Whip and Wander Wand. This antenna tuning unit will get your SWR really low on telescopic whips, mobile 3/8th antenna and long wires. A remarkable little tuner that really works!
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An easy to build antenna switch for long wire antennas, expecially designed for sloper antennas
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An inexpensive external GPS antenna, for 1.5 GHz band for GPS receiver, If you operate APRS or just need an external antenna for your GPS receiver, here's one that is easy to build yet offers surprisingly good performance in a compact size. Best of all, it uses commonly available components and materials.
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How to build a 432 Mhz Quagi, using a wood-made boom, and gives a 13 DBI Gain
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Magnetic loops are a compromise antenna and performance will be down on a full size-wire antenna particurlarly on lower HF Bands. This article compare this magnetic loop with a full-sized wire antenna on 80 meters by VK3YE
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Conejo Valley Amateur Radio Club, article edited by Rory Eikland, KG6HCU and Ken Larson, KJ6RZ, they have had excellent experience building and using J-Pole antennas, and share their experience on planning VHF and UHF Jpole antennas.
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3 elements VHF Yagi homebrew antenna designed with YAGIMAX 3. Maximum forward GAIN is about 8,17 DBi. This antenna offering an effective radiation power 4 times greater of the transceiver output by SV1BSX
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Building a Bell ExpressVu satellite dish with a waveguide coffee can cantenna feed, and a Netgear USB Rangemax wifi card (WPN111).
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Pictures and plans of a 4 elements yagi beam antenna for 14 Mhz
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The 75 meter dipole at K7ZB was put up to meet the need for making contacts with friends in the Southwest and Southern California. As usual, it had to be put up so no one can see it from the surrounding neighborhood.
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The Flower Pot Antenna project details a portable dual-band antenna primarily operating on 10 meters, with secondary resonance near the 30-meter band. Construction involves winding RG58 coaxial cable uniformly around a large plastic flower pot, approximately 70cm high with a 60cm top diameter. The design eliminates the need for radials, contributing to its compact and lightweight nature. Key construction steps include soldering the inner conductor to the shield at one end of the wound cable and connecting the wound cable's shield to the rig cable's inner conductor at the base. An LC network, comprising a variable capacitor (0-200pF) and an inductor (10 coils, 5cm diameter, 2mm wire), is inserted between the wound cable's inner conductor and the rig cable's shield. Tuning is performed with an antenna analyzer, adjusting cable length and the variable capacitor for optimal impedance on 10 meters. The antenna performs effectively when installed horizontally.
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A 3 band dipole for 10 15 and 20 meters band, easy to build, and that can be easily setup in any occasion, inclunding field days or portable operations
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Normal mode helix antennas for HF mobile. Photos andn plan for a 20 meters mobile helix antenna by N2MH
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Here is a high-performance hand-held beam antenna that is easy to build and guaranteed to improve your downlink from the LEO satellites over ANY rubber duck or mobile whip
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17 m reduced size coaxial moxon rectangle, an exercise with an MFJ 259B plans by N0KHQ
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Alinco's factory in Toyama, Japan, holds ISO9002/140001 certification, underscoring its commitment to quality manufacturing processes for amateur radio equipment. The company produces a diverse range of products, including HF transceivers, mobile VHF/UHF radios, handhelds, and scanners, serving both new and experienced operators within the ham radio community. Their product line extends beyond transceivers to encompass essential accessories such as antenna tuners and power supplies, which are crucial for complete station setups. These offerings support various operating environments, from portable field operations to fixed home stations, ensuring versatility for radio amateurs. Alinco, Inc. Electronics Division is headquartered at Yodoyabashi Dai-Bldg 13F, 4-4-9 Koraibashi, Chuo-ku, Osaka 541-0043 Japan, maintaining a global presence in the amateur radio market.
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Experimental omni-directional antennas for 6-meters band
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A 20 and 40 meter vertical on Autopilot by K6MHE PDF File
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Maco Manufacturing, HF Antennas, gamma matches, cable assemblies, power supply, swr meters, watt meters
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What is a dipole antenna and why are they so popular ? Arrl PDF file
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An easy to build antenna switch with common rele
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Programs for common antennas and some experimental, includes, dipoles, quad, Yagi, verticals, discone, jpole skyhoppers and parabolic antennas
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Build your own antenna for the 23cm band ( 1250Mhz - 1280Mc ) using some aluminium and this simple design.
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Short dipole antenna for 40 meter ham band. Can be put up in the space required for a 20 meter dipole.
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Get maximum power to your antenna by learning how to hook up and use a tunner to properly "trick" your rig
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G3JVL Six meters ground plane vertical is a compact antenna that is ideal for portable operations on 50 Mhz
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This antenna is not a true Windom, but rather an off center fed or OCF dipole works on 8 bands from 80 to 10 meters
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