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calculator

224 links - and 3 categories

Antennas : Antenna Calculators
  • VSWR Loss Calculator - This calculator is designed to give the efficiency loss of a given antenna, based on the input of VSWR (voltage standing wave ratio) and other subsequent factors
    [ Hits: 1867 | Votes: 9 | Rating: 2.45 ]
  • Slim Jim antenna calculator - How to make a simple but effective Slim Jim antenna. It includes a calculator to work out all the mesurements for the frequency you require.
    [ Hits: 9143 | Votes: 78 | Rating: 5.43 ]
  • Cubical Quad Antenna Calculator - Easy Quad calculator, enter center frequency to get a quad antenna size
    [ Hits: 2784 | Votes: 34 | Rating: 6.45 ]
  • Beverage Transformer Calculator - W0FMS Two-Wire Beverage (SWA) Transformer Calculator
    [ Hits: 1054 | Votes: 7 | Rating: 3.85 ]
Antennas : Baluns : 4 to 1 balun
  • 4:1 coax balun design - Online calculator for a 4 to 1 coax cable balun
    [ Hits: 7028 | Votes: 26 | Rating: 5.49 ]
Antennas : Feed Lines
  • RF Transmission Line Loss Calculator - This calculator computes the matched line loss for a transmission line using a model calibrated from data for the transmission line types built in to the calculator. It also gives an estimate of the mismatched loss if the mismatch is specified.
    [ Hits: 579 | Votes: 2 | Rating: 1 ]
Antennas : Theory : Impedance matching
  • T Match efficiency estimator - This calculator estimates the efficiency of a T match tuner using a simple loss model.
    [ Hits: 583 | Votes: 1 | Rating: 4 ]
Antennas : Traps DX Resources : Beacons : 6 meters beacons Operating Aids : Distance & Bearing
  • Great Circle Distance Calculator - This online calculator computes the great circle distance between two points on the earth's surface
    [ Hits: 1798 | Votes: 4 | Rating: 3 ]
Operating Modes : D-STAR
  • D-PRS Message Calculator - This page calculates the necessary GPS message (C1 message on most Icom radios) to use your Icom radio in GPS mode (not GPS-A mode) with D-PRS.
    [ Hits: 348 | Votes: 1 | Rating: 9 ]
Operating Modes : Satellites
  • Calculate azimuth and elevation - Use this online calculator if you need to know your azimuth/elevation relative to a satellite
    [ Hits: 662 | Votes: 3 | Rating: 4.67 ]
Shortwave Radio : Schedules
  • Shortwave schedules around the world - Shortwave schedules around the world with frequencies in kHz and distance calculator. This web site is an online searchable database of current broadcasting stations. You can search for stations on the air now or for scheduled transmisssion periods and frequencies.
    [ Hits: 1636 | Votes: 9 | Rating: 9 ]
Software : Antenna analysis
  • Cantenna Calculator - A circular waveguide calculator for designing cantennas include source code and windows executable by lincomatic
    [ Hits: 3030 | Votes: 60 | Rating: 4.55 ]
Technical Reference : Attenuators
  • RF Attenuator Calculator - This is an on-line rf attenuator calculator provided free in order to promote the FLEXI-BOX. Calculates the resistor values, attenuation, minimum attenuation, impedance, reflection coefficient, VSWR and return loss of a matching Pi attenuator
    [ Hits: 467 | Votes: 4 | Rating: 5.25 ]
Technical Reference : Calculators
  • Electronic calculator - Some simple electronics calculator in javascript
    [ Hits: 916 | Votes: 3 | Rating: 5.67 ]
  • DB Watts EIRP Calculator - Online calculator, to convert dbWatts to Watts and vice-versa, or ERP and EIRP by G4URH
    [ Hits: 692 | Votes: 15 | Rating: 4.14 ]
  • dbm Calculator - The dbm online calculator and reference table for 50 Ohm
    [ Hits: 601 | Votes: 8 | Rating: 5.12 ]
Technical Reference : Electronics Technical Reference : RF Safety
  • 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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