transmission lines

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transmission lines

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Antennas : Feed Lines
  • Transmission Lines - Whenever you choose a coax feedline, the frequency of operation is a very important consideration. Over the operating bandwidth of the coax the VSWR is low, typically 1.2:1 or better. Insertion loss is also an important parameter. It is usually specified in dB/foot and is a linear relationship.
    [ Hits: 1272 | Votes: 0 | Rating: 0 ]
  • Transmission lines for dummies - Myths and basic truths on transmission lines
    [ Hits: 1428 | Votes: 1 | Rating: 10 ]
  • Let's talk transmission lines - Don't neglect one of the most important parts of your station!
    [ Hits: 1057 | Votes: 3 | Rating: 9 ]
  • Transmission Lines - About feed lines, parallel lines and coaxial lines, notes on impedance, SWR, Baluns, velocity factor and more by NZART
    [ Hits: 604 | Votes: 1 | Rating: 8 ]
  • Coaxial Transmitting Chokes - Understanding Common Mode and Differential Mode Currents on Transmission Lines by K9YC
    [ Hits: 1099 | Votes: 0 | Rating: 0 ]
  • The Coaxial Line - Impedance matching, Transmission Lines, Characteristic Impedance, VSWR & Mismatch and Antenna Losses
    [ Hits: 888 | Votes: 0 | Rating: 0 ]
Antennas : Feed Lines : Open Wire
  • Parallel Circular Conductor Transmission Line Calculator - Design a parallel circular wire balanced transmission line with this online calculator. This calculator is a tool for designing balanced transmission lines with a specific desired characteristic impedance Zc and made of parallel circular conductors of a given diameter d.
    [ Hits: 631 | Votes: 6 | Rating: 4.5 ]
Antennas : Theory
  • Integrated Publishing Basics - Radio wave propagation, Principles of transmission lines, Antennas
    [ Hits: 994 | Votes: 0 | Rating: 0 ]
  • Antennas and Transmission Lines Myths - Antennas, Transmission Lines, Tuners - Myths, Mysteries and Qualifiers By Don Wilhelm W3FPR
    [ Hits: 571 | Votes: 2 | Rating: 10 ]
  • Smith Chart Basics - Smith Chart it is a graphic tool for solving transmission lines problems
    [ Hits: 312 | Votes: 1 | Rating: 10 ]
Antennas : Theory : Impedance matching
  • Matching with one-twelfth-wavelength feed line - Matching with a half wave or wuarter wave coaxial cable is pretty well known, but an existing 1961 system to do that with two one-twelfth-wavelength transmission lines.
    [ Hits: 540 | Votes: 1 | Rating: 10 ]
Antennas : Tuners
  • The EZ-Tuner - The "EZ-Tuner" is a homebrew automatic legal-limit antenna tuner that covers all amateur HF bands from 160-10 meters. Using a T-network design and controlled by a BASIC Stamp BS2sx microcontroller, the EZ-Tuner will match at least a 16:1 VSWR for either unbalanced or balanced transmission lines.
    [ Hits: 5567 | Votes: 1 | Rating: 9 ]
Manufacturers : Microwave
  • KEYCOM Characteristic Technologies - Millimeterwave/Microwave transmission lines and components, Cryogenic temperature application transmission cables and systems, Permittivity(Dielectric rate) and Permeabillity measurement systems, Antennas, Radar systems
    [ Hits: 925 | Votes: 2 | Rating: 4 ]
Software : Antenna analysis
  • 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 ]
Software : Circuit Design Software : Decoders
  • DTMF decoder - A very easy to use program to decode DTMF dial tones found on telephone lines with touch tone phones. The DTMF Decoder is also used for receiving data transmissions over the air in amateur radio frequency bands.
    [ Hits: 7943 | Votes: 14 | Rating: 4.79 ]
Software : Linux
  • linSmith - Smith chart utlity - A Smith charting program. You can enter either discrete components or transmission lines, see the results on screen and/or generate Postscript output. Component values can be changed numerically or using scrollbars.
    [ Hits: 1368 | Votes: 1 | Rating: 10 ]
  • linsmith - A Linux Smith charting program. You can enter either discrete components or transmission lines, see the results on screen and/or generate Postscript output. Component values can be changed numerically or using scrollbar
    [ Hits: 556 | Votes: 0 | Rating: 0 ]
Technical Reference : Coax Cables and Connectors
  • Coax cable data  updated - Characteristics of commonly used transmission lines
    [ Hits: 3587 | Votes: 9 | Rating: 6.33 ]
Technical Reference : Radio Frequency Interference : BPL
  • Are you ready for BPL - Broadband over power lines (BPL) is a technique for transmission of high speed data (broadband Internet) over powerlines. Access BPL technology injects radio frequency energy into powerlines which were not designed for transmission of radio frequency energy, and leak substantial energy that causes interference to radiocommunications service
    [ Hits: 671 | Votes: 0 | Rating: 0 ]

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