im calculator


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64 links

Antennas : 80M
  • Coaxial cable dipole for 80m - Here are some simple antennas you can build along with calculators to help you get the right length.
    [ Hits: 2799 | Votes: 1 | Rating: 5.00 ]
Antennas : Antenna Calculators
  • EH Antenna calculator  updated - Calculate eh antenna components dimension with this online form
    [ Hits: 18322 | Votes: 68 | Rating: 5.37 ]
  • C-Pole antenna calculator - Based on the original design by Brian Cake, KF2YN this online calculator let you find the correct dimensions for a cpole antenna
    [ Hits: 2816 | Votes: 4 | Rating: 3.25 ]
Antennas : Bazooka
  • Coax Dipole Calculator - An efficient program to calculate dimensions of coax dipoles, or bazooka antennas considering velocity length of different coax cables. Express dimensions in feet/inch and meters/cm. Freeware by VE3SQB
    [ Hits: 9414 | Votes: 44 | Rating: 5.32 ]
Antennas : Feed Lines
  • SWR Calculator - BesserNet Reflectometer is a fun SWR calculator and simulator Java applet
    [ Hits: 3799 | Votes: 24 | Rating: 4.60 ]
Antennas : Helical
  • Helical Antenna Calculator - This is my simple implementation of the ARRL Antenna Book design equations for the axial-mode helical antenna.
    [ Hits: 4033 | Votes: 46 | Rating: 5.61 ]
Antennas : J-Pole
  • J-Pole antenna design  pop - Complete guide to build Jpole antennas with online dimensions calculator.
    [ Hits: 48907 | Votes: 74 | Rating: 5.88 ]
Antennas : Log Periodic
  • Log Periodic Antenna Design  pop - calculates the dimensions and spacings of the elements needed to build a log periodic antenna, given tao, sigma and the lower and upper cutoff frequencies.
    [ Hits: 29948 | Votes: 249 | Rating: 6.10 ]
Antennas : Loop
  • Loop Antennas and Calculator - KA1FSB loop calculator give you a quick overview of the feasibility of "squeezing" a loop into your available yard or apartment space. The easy calculator yields a reasonable approximation of dimensions, to within 5% over the amateur bands, using typical wire gauges ranging from 12-18 AWG.
    [ Hits: 10799 | Votes: 30 | Rating: 5.27 ]
Antennas : Moxon
  • Moxon Rectangle Calculator - Program to calculate the dimentions of a Moxon Rectangle. All equations correlated to NEC antenna modeling software for wire diameters from 1e-5 to 1e-2 wavelengths.
    [ Hits: 5177 | Votes: 19 | Rating: 5.72 ]
Antennas : Quad
  • Quad antenna calculator - To get the dimensions for your quad, all you have to do is type in the center frequency of the range where you talk, or the frequency you use most and then click the Calculate button.
    [ Hits: 5699 | Votes: 38 | Rating: 4.56 ]
Ham Radio : Resources
  • Amateur Radio RF Safety Calculator - This is a main beam power density estimation program intended for use as part of a routine evaluation of RF safety compliance with FCC regulations.
    [ Hits: 2003 | Votes: 7 | Rating: 4.57 ]
Software : Antenna analysis
  • J Pole calculator  pop - Enter the operating frequency and calculate dimensions of your jpole antenna
    [ Hits: 45821 | Votes: 156 | Rating: 6.26 ]
  • HamCalc v1.3 - HamCalc is a free collection of calculators for radio amateurs include Antenna ERP calculations, Attenuators, Audio Filter design, Coil Winding, Decibels, Great Circles map and calculator, HF Filters, HF Traps, Metric conversions OP Amps QRA Locator to Latitude/Longitude, Radio Horizon calculator, Resonance Satellite orbit calculator Timer calculations (555 timer)Zener Diode calculations Download zip By G4VWL
    [ Hits: 20773 | Votes: 83 | Rating: 5.04 ]
  • HF Beam Calculator - A javascipt online calculator for 2 and 3 element beam antennas. Just input frequency and will diplay element dimensions and spacing. Measurements in Feet and Meters by G4VWL
    [ Hits: 2741 | Votes: 26 | Rating: 5.62 ]
Software : Circuit Design Software : Collections
  • W9DMK Software - Various radio related software, including some antenna analysis, and impedance calculators.
    [ Hits: 2600 | Votes: 4 | Rating: 5.00 ]
Software : DX Cluster
  • Band Master - Band Master is a program for Radio Amateurs that downloads DX spots and displays them in different ways, including a graphical band map. It can be used either as a stand alone application or as part of a logging or contesting software via the COM/OLE interface. Rig control, country/province resolution, azimuth/distance calculator and online QRZ lookup are built-in, propagation prediction and geographical mapping are available through integration with HamCap and DX Atlas respectively.
    [ Hits: 3089 | Votes: 0 | Rating: 0.00 ]
Software : Linux
  • Smith chart calculator - linSmith is a Smith Charting program, mainly designed for educational use. It allows defining multiple load impedances (different frequencies), and adding components (discrete components and line sections) in series and parallel. It plots the impedances on the screen, shows the values in table format, and is able to generate publication quality Postscript output.
    [ Hits: 3887 | Votes: 28 | Rating: 3.92 ]
Software : PalmOS
  • HAMCALC - The function that is actually implemented is a QRB and QTF calculator, but the idea is to make a complete toolkit with DXCC database, logging and so on.
    [ Hits: 514 | Votes: 1 | Rating: 10.00 ]
Software : Utilities
  • HAMIC - The Ham Intelligent Calculator - HAMIC, is a program designed to simplify a number of calculations commonly used by HAMs. It is designed for the HAM radio hobbyist, but may be useful to others as well. HAMIC has a simple to use, but powerful graphical interface that allows solving simple circuits such as resistors in series or parallel, or more complex circuits such as L networks or T networks. As well, other calculations such as SWR and reactance conversions are supported. Windows shareware.
    [ Hits: 1574 | Votes: 2 | Rating: 5.50 ]
  • ID Wizard - ID Wizard is an ID timer with system clock setting and miscellaneous tools. Tools includes Notes, a full-featured “text” editor, Calculator, Calendar for sun/moon times, Time Zone Browser Conversion Utility Area, Distance, Mass, Power, Temperature, Time and Volume, Trace Route, Ping and WhoIs
    [ Hits: 1099 | Votes: 2 | Rating: 10.00 ]
Technical Reference : Calculators
  • Amateur Radio RF Safety Calculator  updated - University of Texas Amateur Radio Club RF-Calculator. This is a main beam power density estimation program intended for use as part of a routine evaluation of RF safety compliance with FCC regulations
    [ Hits: 5438 | Votes: 24 | Rating: 7.63 ]
Technical Reference : Coax Cables and Connectors
  • Coaxial Cable & Power Handling - This calculator can be used to estimate the attenuation (dB loss), power handling capability, and transmission efficiency for some of the more popular Wireless Communications and MIL Spec cables at the frequency of interest
    [ Hits: 962 | Votes: 8 | Rating: 8.17 ]
Technical Reference : Radio Frequency Interference
  • EMI Calculator - Does your Amateur Radio system comply to the EMI rules ? (German values implemented)
    [ Hits: 1215 | Votes: 7 | Rating: 7.15 ]
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