Developments in HF propagation modelling by microcomputer

MICROP3, a versatile microcomputer-based method of HF sky-wave propagation and circuit performance assessment, is an enhanced version of MICROP2. The input data display has been improved and the capability has been provided to store, for repeated use, a database of circuits specific to user requirements and to replace predicted values of ionospheric parameters by measured or normalised values. An additional output has been added which details mode structures. Work to extend antenna gain and noise assessments and to improve CCIR data banks of measured field strengths is described.<
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