FSPLCalc allows the user to calculate the free space path loss of broadcast radio waves at a variety of frequencies. Several modifiers are accommodated and can be customised for each calculation. The app will show free space path loss, link budget and fresnel zone height for each configuration entered. Though every effort has been made to ensure the accuracy of the data given , no guarantees implied or explicit can be given. Remember geographic and atmospheric conditions will affect the propagation of radio waves and are beyond the scope of this app.