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RF Design and Amateur Radio Related Web Widgets


These programs are distributed in the hope that they will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.

Most are made available under the terms of the GNU General Public License as published by the Free Software Foundation, either version 2 of the License, or (at your option) any later version, but see the License conditions for each individual program.

These programs are in the form of Web Widgets which execute within a web browser. They are coded in HTML, CSS and javascript.

In most cases the files may also be downloaded for local use in a web browser.

The "images" below are live web widgets which are executing on this page. Information about most widgets can be obtained by clicking on the blue help balloons.


NetCalc - RF Impedance Calculator

This is a web version of the NetCalc Widget.

Direct Link or download the files for local use in your browser.

Direct Link for browser (wide) version


AC 3-Phase Calculator

This is a web version of the AC 3-Phase Calculator Widget.

Direct Link or download the files for local use in your browser.

Attenuator Calculator

This is a web version of the Attenuator Widget.

Direct Link or download the files for local use in your browser.

Coil Inductance Calculator

This is a web version of the Coil Inductance Calculator Widget.

Direct Link or download the files for local use in your browser.

LCR Resonance Calculator

This is a new Web Widget.

Direct Link or download the files for local use in your browser.

Morse Key

This is a web version of the Morse Key Widget. It uses/requires HTML5 Audio and File APIs.
It uses web storage to store the speed setting for use when it is next accessed.

Direct Link or download the files for local use in your browser.

Ohm's Law Calculator

This is a web version of the Ohm's Law Calculator Widget.

Direct Link or download the files for local use in your browser.

Resistors Calculator

This is a web version of the Resistors Calculator Widget.

Direct Link or download the files for local use in your browser.

Tx Line Calculator

This is a web version of the Tx Line Calculator Widget.

Direct Link or download the files for local use in your browser.

Wiring Calculator

This is a web version of the Wiring Calculator Widget.

Direct Link or download the files for local use in your browser.


Last updated Thursday, August 1, 2019.