directional

directional

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• 2 Meter 10 Element Quagi Antenna - 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.
  [ Hits: 15656 | Votes: 32 | Rating: 7.06 ]
• Build a hanging dipole for two metres - Described here is a simple omnidirectional, vertically-polarised dipole for two metres
  [ Hits: 3092 | Votes: 1 | Rating: 7 ]

• K0FF's 6 meter SLOOP antenna - It is more or less omni-directional, and horizontally polarized, it's just a dipole folded around on itself, and supported at the far (open) end with a plastic insulator.
  [ Hits: 4049 | Votes: 9 | Rating: 5.01 ]

• Directional arrays - About collinear array antennas
  [ Hits: 4385 | Votes: 0 | Rating: 0 ]

• Omni-Gain Vertical Collinear Antenna - This rugged antenna, an omnidirectional collinear, is capable of surviving harsh environments. It's a good choice for repeater installations and can be top, or side mounted to the tower by WA6SVT
  [ Hits: 10745 | Votes: 7 | Rating: 4.86 ]
• Home-brew Compact 6dBi Collinear Antenna - This page details the construction of an easy-to-make collinear 360 degrees omni-directional, vertically polarised, antenna for 802.11b/g wireless networking.
  [ Hits: 20576 | Votes: 29 | Rating: 7.89 ]

• Build a hanging dipole for 2 metres - Described here is a simple omni-directional, vertically-polarized dipole for two meters. Made from coaxial cable, it can be rolled up and stored in a small container
  [ Hits: 5335 | Votes: 3 | Rating: 8.33 ]

• The K9AY Terminated Loop - A compact directional receiving antenna
  [ Hits: 2465 | Votes: 5 | Rating: 6.6 ]

• The full-wave loop antenna - These omnidirectional antennas offer Horizontal polarization, and about 2.1 dbd of gain. They are much quieter than a dipole or a vertical, have a broader bandwidth and will usually out perform a dipole antenna.
  [ Hits: 5052 | Votes: 4 | Rating: 6.5 ]

• Corner reflector antenna - Do you need a high gain antenna? Have you suffered on picking up interference from unwanted direction? You need a directional antenna but a 12 element Yagi will be too attractive!
  [ Hits: 1709 | Votes: 4 | Rating: 3.75 ]

• Common vhf amateur radio antennas - Plans and drawings of common amateur radio antennas, like jpoles, copper cactus, super jpole, omnidirectionals and quads
  [ Hits: 2102 | Votes: 2 | Rating: 9 ]

• DirectionalWaveguide - Seattle Wireless - Waveguide antenna is a type of DirectionalAntenna and is a modified waveguide. A waveguide is simply a tube, either rectangular or cylindrical in cross-section, that will carry a microwave radio signal with very low signal loss
  [ Hits: 4983 | Votes: 3 | Rating: 6 ]
• PringlesCantenna - Seattle Wireless - The PringlesCantenna is an ultracheap Yagi-type directional antenna that can be built for under $10. The original Pringles Yagi was designed by Andrew Clap.
  [ Hits: 9418 | Votes: 5 | Rating: 6.8 ]

• CO2KK Wire antenna for 50 Mhz - 6m (50Mhz) Long wire antenna There is another form of long wire antenna which provides uni-directional coverage and is easy to build. Description by Arnie Coro CO2KK
  [ Hits: 1550 | Votes: 2 | Rating: 7 ]

• SSB Electronic USA - manufactures and distributes HF, VHF, UHF and SHF equipment covering 10MHz. - 47.0GHz. Our products include: Wireless LAN / WAN Bidirectional Linear Amplifiers, Low Noise Preamplifiers - LNA's, RF Linear Amplifiers, Relays, Transverter Systems, Frequency Translation Systems, Downconverters, Antennas, Parabolic Dishes, Coaxial Cable, Relays, Antenna Switches, Microwave Test equipment, PC controlled Receivers, Microwave Linear Amplifiers including models for Telemetry, Wireless, and CDMA applications.
  [ Hits: 8406 | Votes: 8 | Rating: 6.12 ]

• Antenna Authority - Specializing in an assortment of directional, wideband antennas and other equipment used for radio location
  [ Hits: 485 | Votes: 3 | Rating: 8 ]

• RF HAMDESIGN - An engineering oriented organization specializing in the design and manufacture of high performance parabolic antennas, 3dB high power RF couplers, Antenna power splitters, directional RF couplers and more items for RF transmission from HF through Microwave frequencies.
  [ Hits: 1616 | Votes: 5 | Rating: 9 ]

• SSB-Electronic - SSB-electronic gmbh based in Germany produces coax cables and connectors, rf parts and components, SDR receivers and transceivers, transvertes, attenuators, coax relays, precision directional couplers.
  [ Hits: 2012 | Votes: 2 | Rating: 10 ]

• Meter Mate - SWR Graph Software - Meter Mate is a companion utility for your directional watt meter that allows you to calculate the SWR reading when the forward and reflected power readings are measured. In addition to calculating the antenna system SWR Meter Mate will also plot the SWR curves of all of your antennas onto graphs that may be printed out.
  [ Hits: 1919 | Votes: 12 | Rating: 4.91 ]

• NDBfinder - NDBfinder allows you to use your PC and soundcard to receive, detect, identify and log NDBs (Non Directional Beacons used for maritime and aeronautical navigation)
  [ Hits: 2359 | Votes: 2 | Rating: 9.5 ]

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