calculator

Amateur Vertical Antenna Calculator  ^{updated  pop} - This calculator is designed to give the vertical length (height) of a particular antenna, for the frequency and wavelength chosen.

Quad calculator  ^{updated  pop} - Cubical quad antenna calculator in java script

Bazooka Calculator  ^pop - Calculate Double bazooka for Win3/Win95 by W4BEJ

J-Pole antenna design  ^pop - Complete guide to build Jpole antennas with online dimensions calculator.

Magnetic loop for 80m - Magnetic loop for 80m OH7SV, includes the OH7SV Magnetic Loop Calculator in an Excel file

Hamradioindia a website by vu2fd - a website by vu2fd with theory lessons, details on rules and regulations and planty of homebrew projects for radio amateurs, java calculators.

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.

QTH Locator and Calculator - Calculate bearing and distance and Locator online with this Java application.

Great Circle calculator - Excellent on-line java great circle calculator with perl source code and excel spreadsheet for gc calculations

Grid Locator and Grid Square - About grid locators and grid squares, includes links to locator and grid square calculators

Maidenhead Locator Calculator - On-line calculator for Maidenhead locator calculations. It will work out your Maidenhead locator if you supply it with map references or calculate map references from your locator code.

Sunset Calculation - Sunset online calculator

MPE Calculator - Free RF exposure evaluation software for amateur radio

Design and build helix antennas - An on-line javascript calculator and quite a few pictures to show how to make a helix antenna.

atlc - Arbitrary Transmission Line Calculator. - Unix or linux programme atlc calculates the impedance of electrical transmission lines of totally arbitrary cross section.

W9DMK Software - Various radio related software, including some antenna analysis, and impedance calculators.

GridX - GRIDX, a BASIC program that calculates grid squares and Great Circle headings and grid.exe, a grid locator calculator

Squares - Grid Square and Distance calculator by w3km

WWLOC - Direction and distance calculator for windows

Qgrid - Maidenhead grid squares calculator, and bearing and distance program

Radioman - Freeware dos VHF/UHF Logbook morse code facility, kenwood transceivers interface, moontracking, distance and bearing calculators by DF9CY but discontinued and unsupported

Radio Propagation & Diffraction Calculator  ^pop - This is a radio frequency propagation calculator for the transmission path between an RF transmitter and a receiver.

ERP Calculator - DOS program that will assist you in determining your 2 meter station's Effective Radiated Power (ERP)

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.

EMI Calculator - Does your Amateur Radio system comply to the EMI rules ? (German values implemented)