Low probability of intercept signal interceptor buoy

A method for increasing maritime domain awareness comprising:

• providing a buoy casing configured to float on a body of water, wherein the buoy casing is equipped with a global positioning system (GPS) tracker and a magnetometer, both of which being communicatively coupled to a processor which is mounted to the buoy casing;
• mounting an electrically small antenna to the buoy casing in a position so as to provide a limited RF reception range of no more than fifteen kilometers, wherein the antenna is horizontally polarized;
• receiving RF signals from an emitter with the antenna;
• determining characteristics of the RF signals with the processor, wherein the determining characteristics of the RF signals further comprises:
• measuring a frequency of each of the RF signals with an instantaneous frequency measurement (IFM) receiver;
• feeding an output of the IFM receiver to a pulse descriptor word (PDW) generator to generate PDWs corresponding to the RF signals;
• establishing a rough geolocation the size of the limited reception range of the emitter based on detection of the RF signal alone;
• and
• transmitting the RF signal characteristics and the corresponding rough geolocation of the emitter via satellite to a remote user.