Highfields Amateur Radio Club
Constructors Corner.

Calculator pages.
Quad Beam Calculator.

You can make a Quad beam with 2, 3, 4 or more elements. The first 2 are the reflect and Driven elements. This calculator will work out the lengths required for up to a 6 element Quad for the given frequency. The use of any or all directors is optional. Measurements are given in feet, inch, metre and cm for ease of use, choose just one set for your build.

Enter the center frequency for band required: MHz.

Elements	Element Total Length	Wire Length Per Side	Spreader Half Length	Spreader Total Length	Element Spacing
Reflector	foot inch metre cm	foot inch metre cm	foot inch metre cm	foot inch metre cm	Starting point for the Driven Element spacing measurement.

Driven Element	foot inch metre cm	foot inch metre cm	foot inch metre cm	foot inch metre cm	foot inch metre cm

Director 1	foot inch metre cm	foot inch metre cm	foot inch metre cm	foot inch metre cm	foot inch metre cm

Director 2	foot inch metre cm	foot inch metre cm	foot inch metre cm	foot inch metre cm	foot inch metre cm

Director 3	foot inch metre cm	foot inch metre cm	foot inch metre cm	foot inch metre cm	foot inch metre cm

Director 4	foot inch metre cm	foot inch metre cm	foot inch metre cm	foot inch metre cm	foot inch metre cm
Total Boom length will depend on how many director elements (if any) you fit. To find the Boom length add all the Element Spacing amounts of your chosen measurement together, ie for a 3 element Quad-beam add the Driven and the first Director (with the Reflector gives 3) spacings to give the length.

Calculators Index Page.
Constructors Corner Index Page. Or Sitemap.

Calculator pages.Quad Beam Calculator.

Calculator pages.
Quad Beam Calculator.