Probability of intercepting frequency hoping signals using modern search receivers

This article is intended to present the latest scientific findings about the interception of frequency hoping signals. The probability of intercepting frequency hopping signals by means of modern search receivers or scanning direction finders is calculated on a general basis and with particular attention to multichannel receivers and overlapping search and frequency hopping ranges. The article also deals in detail with the timing of the receiver sequence coinciding with the hopper sequence. For the sake of simplicity, ideal conditions are assumed.