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Antennas : 40M- A 40 meters DDRR Antenna
- A direct drive ring radiator antenna for the 40 meters band by W6WYQ QST article.
[ Hits: 3406 | Votes: 8 | Rating: 3.37 ]
- Echelon-Log Beverages
- About beverage antennas, Enhanced F/B Beverages, Bandwidth of Directivity, arrays.
This article describes two phasing systems for Beverage antennas that improve directivity and cancel rearward signals. These systems use lossy elements and require minimal components to achieve broadband performance.
[ Hits: 1860 | Votes: 1 | Rating: 10 ]
- Antenna Gain Comparison System
- This device goal is to optimize homebrew antenna for the V/UHF band. This tool, is based itself on the simultaneously comparison between two antenna, directly in dB. by IK0BDO
[ Hits: 2212 | Votes: 12 | Rating: 5.58 ]
- 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 ]
- 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 ]
- Find FM AM Radio Stations
- Directory of US FM and AM stations featuring mapping.
[ Hits: 499 | Votes: 1 | Rating: 10 ]
- Peet Bros Company
- Manufacturer of advanced electronic systems to measure such weather data as: wind speed, wind direction, wind chill, pressure, humidity, rainfall, and dew point.
[ Hits: 635 | Votes: 2 | Rating: 10 ]
- 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: 8405 | 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 ]
- Soft66
- Direct Conversion Receiver for Software Radio Soft66AD
[ Hits: 884 | Votes: 0 | Rating: 0 ]
- The KISS Protocol
- The KISS TNC provides direct computer to TNC communication using a simple protocol. KISS is a simple Host-to-TNC communications protocol
[ Hits: 540 | Votes: 2 | Rating: 3.5 ]
- 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 ]
- TLDetails
- Transmission Line Details. This utility program shows the impedance and SWR at both ends of a transmission line and the details of power loss in the line. It includes characteristics for over 40 built-in line types. You can modify these values to see how small changes affect the results or to specify custom lines. All program inputs may be changed directly or you can use spin buttons to make the changes. If you are using a moderately fast computer you can hold down a spinner and "watch the movie" on the charts as the results are recomputed. By AC6LA
[ Hits: 1205 | Votes: 4 | Rating: 9.25 ]
- Elsie - Filter Design
- Filter design software. Elsie is an uncommon commercial-grade lumped-element ("L-C") electrical filter design and network analysis program, directed toward the engineer or technician involved in that line of work.
[ Hits: 2955 | Votes: 7 | Rating: 8.71 ]
- MU-Locator
- 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: 1724 | Votes: 5 | Rating: 6.4 ]
- Amateur Radio Repeater Directory
- Amateur Radio Repeater Listings at your fingertips for the first time on your PDA
[ Hits: 3487 | Votes: 3 | Rating: 4 ]
- PSK08 - G4JNT
- PSK08 Software for the 56002EVM.
PSK08 is a data communications mode identical in operation to PSK31, but operating at one quarter the speed, ie. approximately 8 symbols per second. Direct download link to psk08.zip file.
[ Hits: 735 | Votes: 0 | Rating: 0 ]
- Meteo Beacon in VHF with a Raspberry pi
- VHF weather beacon based on raspberry pi.
speed and direction of the wind, temperature, atmospheric pressure, are transmitted in voice every 15 minutes. In French
[ Hits: 254 | Votes: 4 | Rating: 2.5 ]
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