JavaScript Source Code 2002: Calculators: Wavelength Calculator

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Wavelength Calculator

Assists ham radio operators in converting a frequency to its wavelength in feet or inches. Other uses include acoustic measurement and adjustment, microphone placement, room tuning, and speaker positioning.

JavaScript Source Code 2002: Calculators: Wavelength Calculator
Simply click inside the window below, use your cursor to highlight the script, and copy (type Control-c or Apple-c) the script into a new file in your text editor (such as Note Pad or Simple Text) and save (Control-s or Apple-s). The script is yours!!!

  <HEAD> <SCRIPT LANGUAGE="JavaScript">    <! > <! >  </script> </HEAD>  <BODY> <center> <form> <table> <tr> <td align=center> <input type=text size=8 value="" name=freq>MHz <input type=button value="WL" onClick="wavelength(this.form.freq.value, 984, this.form);"> <input type=button value="1/2 WL" onClick="wavelength(this.form.freq.value, 468, this.form);"> <input type=button value="1/4 WL" onClick="wavelength(this.form.freq.value, 234, this.form);"> </td> </tr> <tr> <td> = <input type=text name=feet size=15> ft. (or <input type=text name=inches size=15> inches.) </td> </tr> </table> </form> </center>