Axial Mode Helix Antenna Calculator

Enter the desired frequency of the antenna and the number of turns in the coil. You may use a value between 4 and 36 turns. Anything else will return an error for gain. Click on Calculate and the antenna construction values will be returned in both inches and centimeters.

Required Data Entry
Frequency MHz
Number of Turns Turns (4-36)
   
Calculated Results
Gain dB
Wavelength Reflector Inches cm
Circumference Inches cm
Diameter Inches cm
Spacing Between Turns Inches cm
Length of Each Turn Inches cm
Length of Wire Needed Inches cm
Antenna Length Inches cm