alc design/admin

HF Balcony antenna  ^pop - Small HF balcony antenna project

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

AM Antennas  ^pop - The ultimate AM loop antenna article. It is the only article that includes the calculations and detailed plans

DXCC spreadsheet - Excel spreadsheet that helps you trace your status of DXCC entities. You only have to fill the cells with your worked and confirmed entities and the totals will be automatically updated. You don't have to make any calculation

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.

Galco - Control Products, drives, motors, test, measurement

RMS international - RMS International, italian distributor of Alcava batteries and power supply, since 1975 manufacture power amplifiers, watt meters, antenna tuners, TVI filters and other accessories for hams and cb radio

Distance and Bearing Finder - This service uses data from the US Census and a supplementary list of cities around the world to find the latitude and longitude of two places, and then calculates the distance between them. It also provides a map showing the two places, using the Xerox PARC Map Server.

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

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.

DOS programs by g4fgq - Small collection of DOS antenna design and RF calculations programs

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

Grid Loc - calculate maidenhead grid square and coordinates

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.

Pathloss Calculation and EME - Java free space pathloss calculation and EME

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

Resistor values by color - Calculate Resistor Values from Color Codes

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