calcul

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calcul

324 links - and 3 categories

Antennas : 160M
  • Inverted L- Antenna for the TOP Band - An schema drawing and formula to calculate size of an Inverted L antenna for the 160 meters band, 1.84 MHz.
    [ Hits: 699 | Votes: 8 | Rating: 6 ]
Antennas : Antenna Calculators
  • Wire Antenna Calculator - A javascript online calculator for popular wire antennas, from the standard easy to build flat-top dipole, to the inverted V dipole, but also the Quad Loop, and the equilateral delta loop antenna
    [ Hits: 1387 | Votes: 14 | Rating: 7.75 ]
  • Quick antenna length calculator - An excel spreadsheet that in a really simple way checks how much to trim your antenna elements. Download the xls file and watch the presentation video include in this page
    [ Hits: 771 | Votes: 0 | Rating: 0 ]
  • 7 Element Yagi Calculator - Online javascript antenna calculator designed to give the critical information of a particular beam antenna, in this case a seven element Yagi, for the frequency chosen.
    [ Hits: 3440 | Votes: 57 | Rating: 6.72 ]
  • J-Pole Antenna Plan and Calculator  updated - An online J-Pole antenna calculator that need just to input the frequency and calculates in inch size of each element
    [ Hits: 968 | Votes: 25 | Rating: 4.69 ]
  • Calculate Antenna Lenght in feet, inches and meters - Inches and meters Javascript Wavelength Calculator allow to input a frequency in MHz and calculate wavelenght in several units considering also fractions of wavelenght and the velocity factor. Includes an usefull inch to meter converter
    [ Hits: 502 | Votes: 3 | Rating: 4.67 ]
  • The Antenna Torque Calculator - This unique online tool helps Ham Radio operators to choose the right rotator for medium and large HF antenna systems. The algorithm implemented in this calculator is the result of 40 years of experience in the HF Antenna sector. Given the Wind Speed, the total antenna square area, and the boom length, it will return the calculated torque value.
    [ Hits: 178 | Votes: 1 | Rating: 1 ]
  • 3 element Yagi Antenna On-line Caluclator  updated - This article includes an online calculator for a 3 element Yagi Antenna. The formula and basics theory of Yagi Antenna are also explained with examples.
    [ Hits: 834 | Votes: 19 | Rating: 4.59 ]
  • Magnetic Loop Antenna Calculator Spreadsheet - Excel spreadsheet that help calculating dimensions of a high efficiency magnetic loop antenna for HF bands. Giving in input the loop perimeter, loop diameter and loop conductor will calculate electric characteristics, bandwidth, and efficiency
    [ Hits: 1878 | Votes: 4 | Rating: 9.25 ]
Antennas : End-Fed : End Fed Half Wave Antenna
  • End Fed Half Wave Antenna Coupler - A home made end-fed half-wave antenna coupler with antenna lenght calculator and counterpoise calculator based on center frequency. Includes pictures and drawings along to antenna homebrewing instructions with a home made on air wound transformer
    [ Hits: 282 | Votes: 0 | Rating: 0 ]
Antennas : Magnetic Loop
  • Homemade Magnetic loops antennas by F5RDS - Basic magnetic loop antenna examples and loop aerials theory explained. This article inclued some interesting tricks on building magnetic loop antennas and an usefull excell sheet to help compute magneti loop antennas calculating power efficiency from 10 to 40 meters band
    [ Hits: 256 | Votes: 0 | Rating: 0 ]
Antennas : Quad
  • The Cubical Quad is Beautiful - An interesting page about Quad antennas. Modelling QUAD antennas, comparing quad antennas to yagi antennas. Information on QUAD Antenna tuning and home brewing with help on calculating dimensions and tuning.
    [ Hits: 2684 | Votes: 4 | Rating: 10 ]
Operating Modes : EME Software : Circuit Design
  • Coil Inductance and Q Calculator - Calculates inductance and Q for single-layer coils made of solid or Litz wire. Uses U.S. or metric dimensions. Can automatically maximize Q. Includes accuracy data. Runs in Windows.
    [ Hits: 255 | Votes: 0 | Rating: 0 ]
  • Resistor Color Code Calculator - Calculate the value of an unknown resistor with this free program for windows
    [ Hits: 760 | Votes: 19 | Rating: 5.25 ]
  • mini Ring-Core-Calculator - Calculate windings on ferrite cores - The program can be used to calculate inductors (coils) and their number of turns on ferrite cores, ferrite shells and air coils. These can be used for baluns, Ununs, bandpass filters, low pass filters, resonant circuits, and more. The technical specifications of the cores are already integrated in the program. Application is free and runs on Windows 32 bit versions only. To make it run on Windows 10 64 bit need to be unzipped in a single folder.
    [ Hits: 390 | Votes: 1 | Rating: 1 ]
Software : Utilities
  • QTH locator calculating functions in Python - Python functions for converting decimal coordinates to QTH locator and backwards. Useful for program software developers to determine grid square locator, also known as maidenhead locator system.
    [ Hits: 487 | Votes: 0 | Rating: 0 ]
Technical Reference : Coax Cables and Connectors
  • Coax Loss Calculator Online by K5VR - RF Feedline (Coax and Ladder-Line) Loss and ERP Calculators made with Javascript. This complex feddline loss calculator has already several line types paramenters for most common coaxial cables from Belden, Time LMR, Wireman and other common products. Result will give Matches loss, SWR loss, dB and Watts power loss.
    [ Hits: 249 | Votes: 2 | Rating: 5 ]
  • Coax Cable Attenuation and Power Handling Online Calculator - An on-line coaxial cable attenuation and total power handling calculator, with a lot of cable properties already configured to give the Nominal Attenuation, Maximum Cable Assembly Insertion Loss, Average Power, Cable Vg anf Nominal Td
    [ Hits: 227 | Votes: 2 | Rating: 2 ]
Technical Reference : RF Safety
  • Magnetic Loop RF Safety - Notes on the intensity of RF Field calculated on magnetic loop antennas. The magnetic field intensity of a mag loop is considerably higher than the E field probably due to the inductive portion of the resonant circuit creating the radiation (magnetic) in the near field
    [ Hits: 856 | Votes: 3 | Rating: 4 ]

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