The low probability of intercept emitter is designed such that it can not be intercepted by a noncooperative intercept receiver. The emitter's processing gain (time bandwidth product) is large and is much larger than the noncooperative intercept receiver's processing gain. The large processing gain of the emitter comes from coding the transmitted waveform with a code that is unknown to the intercept receiver. In addition, a low power waveform transmission, an ultra low side lobe antenna and scan modulations that are confusing also contribute to a low probability of intercept emitter. These methods of LPI design are complex especially when they are combined into a single piece of hardware. Increased capability can also be achieved by networking two or more of these emitters together for a covert battlefield surveillance. This has a major impact of the waveforms that are used and the receiver signal processing used in each emitter.