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Query: antenna
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Categories
- 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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3 Band vertical Marconi-antenna for the bands 40, 80, 160 meters with a ground net of wires as radials. -
A shortened dipole for 40 meters band by Martin E. Meserve -
This article explores a theoretical model for the losses of an 80m / 40m trapped inverted V dipole antenna system using a bootstrap coax trap, but does not examine the pattern of the antenna. -
A 40 80 dipole antenna design by WA6ESC PDF File -
A marriage of the windom and slinky antennas, experimental home brew antenna by NC4TC -
A simple, cheap, efficient tv antenna that you can make yourself. -
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This is the highest gain omni design the world may ever know having wide bandwidth -
This antenna allow transmission and reception on all bands between 7Mhz and 28 Mhz. Similar in concept to the Miracle Whip by VK3YE -
A Double Zepp indoor antenna based on Cebik's reccomendations and design. Can cover HF bands, fed with 450 ohm open wire feeder terminating in an automatic antenna tuner, can perform incredible results. -
A homebrew fishing-rod vertical using a very nice design from EB5EKT. This antenna works 20, 30, and 40M bands by selecting the tap points using alligator clips -
Hints about Jpole Yagi and Quad antennas -
Just Too Easy 40 meter reversible quads in two an three element version -
Pictures of a 2 meter, 220, 440 copper J-Pole antennas -
W4RNL tutorial on on inductively coupled (link-coupled) antenna tuners -
Custom built amateur radio adjustable antennas and accessories. Screwdriver antennas, antenna controllers -
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A schematic design of the W3DZZ antenna in portugues with description of trap building -
The Coke Loop is a Small Magnetic Loop Antenna tuned by a trombone-style variable capacitor made with standard soda cans -
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A quarter size cobra dipole antenna, a multiband dipole antenna for 40 to 10 meters basedn on original cobra dipole design but with a limited space by N4SPP -
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Online calculator and construction instructions -
D3+ High Performance Antennas for Field Day. This article describes versatile broadband wire antennas. These antennas will double your effective radiated power over a dipole, will be easy and inexpensive to build and install, and will be simple to match. -
The diagram below shows the basic arrangement of the 2m Half-Wave version of the antenna. A 6m diagram is available too. -
YF1AR 80 to 40 meter vertical antenna project -
A Mini Moxon antenna for 40 meters band project in a well done PDF document -
Antenna was designed for SO-50 satellite operation but can be used for any VHF/UHF activity. It's a mix of a Moxon Antenna and a Yagi antenna. It has gains 4 dBd on 2m and 6.5 dBd on 70cm bands and it is fed via single 50 Ohm cable. -
The Antenna Rotator Controller is unique in that it senses, displays, and controls to the earth's true magnetic field. The compass sensor, mounted in a waterproof enclosure, is attached to the mast and sends its signal to a microcontroller -
A Loop antenna plan with a gain over one Dipole of 3DB or 5.15DBi -
An inverted V antenna for 40-80 with loading coils. This antenna is a full size on 40 and a shortened 80 by KG0ZZ. -
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A wire yagi antenna model, easy to build, made using inverted vee elements and requiring just one support by ve3vn -
An easy to build, compact antenna for wireless lan applications that offers a reasonable amount gain. -
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An easy to build single wire antenna for 160 and 80 meters with a better than 2 to 1 swr across the 80 meter band -
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Quad maker designing and calculating quad dimension. Excel spreadsheet -
A three-frequency multi-band dipole that can be extended easily to additional bands. This article includes a multiband fan-dipole antenna for 80-40-20-10 meter band. -
Some antenna manufacturers place baluns at the incorrect location in LPDA arrays, or tell you to route the cable incorrectly. This can cause substantial RFI and all sorts of weird problems like RF into house wiring. -
A multi band version of the EH antenna by Emilio S. Campus IS0IEK -
KB1GW's collection of beverage antenna information -
A ZS6BKW antenna experience and comparison over an OCF dipole by F4FHH -
A well documented article on a small magnetic loop antenna for the 40 meters band -
The following are the opinions expressed by various amateurs -
This is a popular antenna design as the performance is very good across the HF bands and requires little or no tuning. It is a dipole fed off center with a 4:1 current balun at the offset feedpoint. The antenna shown covers 80, 40, 20 and 10 meters with 15 meters and WARC bands -
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An interesting article about co-linear or collinear antenna building, by Karl Shoemaker, AK2O -
This article describes the design of an antenna for local contacts on 7MHz, including a simple and efficient matching system that presents a 50 ohm load to the transceiver.