Quad Antenna CalculatorCubical Quad Antenna CalculatorEnter center design frequencymHz in INCHES/ CENTIMETERSTotal LengthONE SIDESpreader Arm LengthONE SIDE “C”ReflectorDriven Element Director 1 optionalDirector 2 optionalDirector 3 optionalDirector 4 optional Director 5 optional INCHES/CM INCHES/CM INCHES/CM spacing between the reflector and driven element should be inches centimeters. spacing between the driven element and the first director and between the directors should beinches centimeters