calculation

calculation

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• Lightweight 4 Element Yagi for 2 meters - A 4 elements Yagi-Uda antenna for 144.3 MHz plan with dimensions and yagimax dimension calculation
  [ Hits: 813 | Votes: 3 | Rating: 6.67 ]

• Triple M Antenna Calculator - The Triple-M-beam calculation program is used for the calculation of Triple-M-beam antennas by DG0KW
  [ Hits: 773 | Votes: 5 | Rating: 6.4 ]
• 80/75 Meter Wire Antennas - Calculations of 75 and 80 meters wire antennas
  [ Hits: 865 | Votes: 10 | Rating: 3.8 ]
• Amateur Dipole Antenna Calculator - This calculator is designed to give the horizontal length of a particular dipole including Tees, antenna, or one side of it, for the frequency chosen. Enter the desired frequency and select the desired calculation from the drop box
  [ Hits: 1079 | Votes: 9 | Rating: 7.45 ]
• Loaded Quarter Wave Antenna Inductance Calculator - Here is a formula and calculator for creating a loaded (shortened) quarter wave vertical or balanced dipole. The calculation refers to either a loaded 1/4 wave or a loaded dipole
  [ Hits: 163 | Votes: 0 | Rating: 0 ]

• How to Tune Dipole Antennas - This is a standard calculation method that can help you while tuning dipole antennas, by adjusting wire lengths. This method can be used also when you need to add lenght to your wires, and can be additionally used to quarter waves vertical antennas
  [ Hits: 336 | Votes: 5 | Rating: 8.6 ]

• Notes on Designing LF-MF antennas - A free book on designign LF MF antennas. The six chapters in the body of the book are limited to basic information which, combined with a little modeling or simple calculations, can be applied directly using graphs for special problems like inductor design.
  [ Hits: 267 | Votes: 2 | Rating: 9.5 ]

• SWR - Power loss calculation - How is your SWR - determine the power loss to expect for a given SWR, includes an excel spreadsheet by n3ujj
  [ Hits: 434 | Votes: 3 | Rating: 7.67 ]
• VHF/UHF Antenna mounting - Mounting antenna close each other. Distance calculations and tips on setting up antennas by KB9VBR
  [ Hits: 749 | Votes: 2 | Rating: 4 ]
• Quarter Waves and Velocity Factor - Coax Velocity Factor in Baluns, Does it Matter? Test results show coaxial cable velocity factor does not always enter into stub length calculations especially in the world of Baluns
  [ Hits: 208 | Votes: 0 | Rating: 0 ]

• To the Moon and back: reflecting a radio signal to calculate the distance - Using a simple calculation, measure the distance between Earth and the Moon with the help of a local amateur radio station
  [ Hits: 365 | Votes: 0 | Rating: 0 ]

• Calculation of the Maximum Usable Frequency - This paper presents the method of calculating the maximum usable frequency (MUF) and field strength of radio waves reflecting 2 times at the F2 ionosphere layer under inhomogeneous conditions of the ionosphere. The comparison between predicted and measured MUF has shown that the proposed method significantly increases the accuracy of calculation MUF.
  [ Hits: 244 | Votes: 2 | Rating: 5.5 ]

• HF communication prediction tools - Online HF Communication prediction system provided by the Australian Governament Buerau of Metereology allow to predict usable frequency rage for radiocommunications between two stations allowing to specify frequency and date range. This tool allow calculation with different methods and algorithms
  [ Hits: 169 | Votes: 0 | Rating: 0 ]

• Antenna Calculation Software - The program consists of tabbed pages for various antenna and transmission line calculation. You can compute the values for an inverted L network that will allow you to match the 50 ohm output of the radio, or you can compute the necessary length in the units of choice for a 5/8 wave vertical for 10 meter band.
  [ Hits: 435 | Votes: 1 | Rating: 10 ]

• How to calculate Bearing and great-circle distance between two points - Calculate distance, bearing and more between Latitude/Longitude points. This page presents a variety of calculations for lati­tude/longi­tude points, with the formulas and code fragments for implementing them.
  [ Hits: 198 | Votes: 3 | Rating: 3.33 ]

• RF Toolbox - A MacOSX antenna design and electronics/electrical tool package. It is a multipourpose application that allow antenna design and comomn calculations
  [ Hits: 670 | Votes: 1 | Rating: 1 ]

• HeyWhatsThat Path - HeyWhatsThat Path Profiler is an online useful tool to do a Line of Sight calculation between yourself and the another station
  [ Hits: 2857 | Votes: 6 | Rating: 7 ]

• Resistor calculator - This resistor calculation tool shows which combinations of two resistors, series or parallel, gives a match better than the closest standard value.
  [ Hits: 281 | Votes: 0 | Rating: 0 ]

• A Tutorial on the Decibel - This tutorial provides background information on the decibel and instructions for performing calculations involving decibels. This tutorial combines information from several authors, including Bob DeVarney, W1ICW; Walter Bahnzaf, WB1ANE; and Ward Silver, NOAX
  [ Hits: 349 | Votes: 1 | Rating: 7 ]

• RF Safety Compliance Calculator - This program is intended for far-field calculations, Calculate Estimated Power Density based on several factors.
  [ Hits: 509 | Votes: 3 | Rating: 5 ]

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