A computer method of HF ionospheric propagation prediction and analysis

A method of HF ionospheric forecasting and analysis suitable for digital computers is discussed. The particular parameters which may be computed are the maximum usable frequency (MUF), the optimum traffic frequency (FOT), the lowest useful high frequency (LUF), and the lowest required radiated power (LRRP). Other parameters may be deduced with only slight modification of the basic program. All of the principles and analytical expressions necessary to program a computer are included.