Improved computation method for radio systems single-tone spurious prohibited frequencies list

For reliability purposes, a realistic computation method that presents, for each desired receiver channel, a list of single-tone spurious (STS) prohibited frequencies is useful. A previously developed STS computation method is significantly improved by applying the results of comparing the former computer-based prohibited values with the measured values based on two UHF receiver engineering models. The new approach incorporates a correction factor for the nonlinear amplitude-dependent effects from the receiver frequency converter stages. A more realistic STS prohibited list that includes accurate values for the system receiver rejection ratio is obtained. It helps to improve radio interference immunity from the initial stages of radio system design and to optimize the frequency allocation management policy