method for acquiring frequency of a desired channel having a carrier frequency f main , for a dynamic receiver frequency f mobile , from a starting frequency f start , in the presence of high power adjacent interfering channels , wherein the starting frequency f start is shifted from f main by not more than a predetermined frequency gap δf , the method includes the steps of determining a first frequency boundary and a second frequency boundary , detecting channels within a filtering bandwidth , selecting a dominant channel from the detected channels , progressing the dynamic receiver frequency f mobile towards the carrier frequency of the dominant channel , detecting when the step of progressing has exceeded one of the first frequency boundary and the second frequency boundary , restarting the step of detecting channels , from the other of the one of the first frequency boundary and the second frequency boundary , and repeating from the step of detecting channels .