direction177 links - and 4 categories
- N9ZRT Kite-Lifted Antennas
- Kite-lifted wire winch consists of 1/4 mile of 15 gauge, bare, solid, aluminum wire, spooled onto a wide pneumatic hose reel. The base pivot-platform locks into place for changing wind direction.
[ Hits: 1109 | Votes: 2 | Rating: 8.00 ]
- Build a hanging dipole for two metres
- Described here is a simple omnidirectional, vertically-polarised dipole for two metres
[ Hits: 2879 | Votes: 1 | Rating: 7.00 ]
- 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: 3237 | Votes: 7 | Rating: 5.15 ]
- Directional arrays
- About collinear array antennas
[ Hits: 4134 | Votes: 0 | Rating: 0.00 ]
- The Simple Collinear
- Wherever there is a need for a vertically polarized omni-directional antenna with gain, a collinear is used. The vertically polarized collinear takes the form of two or more half waves in-line and in-phase, resulting in an omni-directional pattern with maximum radiation near the horizon.
[ Hits: 8676 | Votes: 8 | Rating: 7.75 ]
- 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: 10112 | 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: 20126 | 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: 5093 | Votes: 3 | Rating: 8.33 ]
- Remotely-tuned loop antenna for LW and MW
- This article describes how to build a loop antenna for low frequency (LF) and medium wave (MW) reception with remote-controlled tuning. The antenna is extremely sensitive and can be built mostly from parts from old radios and tape recorders. Like all loop antennas, it is highly directional, which allows you to null out unwanted noise sources.
[ Hits: 2894 | Votes: 1 | Rating: 1.00 ]
- Sensitivity of Multi Turn Receiving Loops
- Magnetism is manifested as a 'field of vectors', that is, any point in the magnetic field has not only a magnitude, but a direction in space. The four Maxwell equations describe how electric and magnetic vector fields behave and interact.
[ Hits: 273 | Votes: 0 | Rating: 0.00 ]
- 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: 1599 | 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: 1977 | Votes: 2 | Rating: 9.00 ]
- 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: 7749 | Votes: 5 | Rating: 7.00 ]
- Antenna Authority
- Specializing in an assortment of directional, wideband antennas and other equipment used for radio location
[ Hits: 381 | Votes: 2 | Rating: 9.00 ]
- 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: 1450 | Votes: 4 | Rating: 9.00 ]
- A new method of radio direction finding
- A method of finding radio sources with antennas based on omni-directionality (the less directional the better coverage). Uses energy levels and some sophisticated math (encompassed in a free software download on the site) to find x,y,z coordinates of the fox relative to the center of your antenna array. Can be overlayed on a GPS map to help you locate in real-time.
[ Hits: 2122 | Votes: 1 | Rating: 10.00 ]
- 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: 1715 | Votes: 11 | Rating: 5.26 ]
- This free program displays the location of any locator on a map.
It calaculates between two Maidenhead locators the distance (km and miles) azimuth longitude latitude
Show the location, direction and distance as you move your mouse on a map!
Graphical Locator Program, By ON6MU
[ Hits: 1550 | Votes: 4 | Rating: 5.50 ]
- PreMuLoc for windows
- This program combines the formerly know programs PreFind and MU-Locator into one but with many improvements to find the location of any prefix, country or Maidenhead locator! Display and find locators on any map and calculate the distance and direction between two locators.
[ Hits: 444 | Votes: 1 | Rating: 9.00 ]
- Offset Attenuator for Radio Direction Finding
- Instead of acting directly on the incoming signal, an offset attenuator works by adjusting the strength of an offset signal
[ Hits: 812 | Votes: 1 | Rating: 7.00 ]
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