Abstract: The present invention is a signal isolation device comprising: a first circulator; a second circulator connected to the first circulator; a first radio frequency switch connected to the second circulator; an adjustable radio frequency limiter connected to the first radio frequency switch; a low noise amplifier connected to the adjustable radio frequency limiter; a bandpass filter connected the low noise amplifier; a power splitter connected the bandpass filter; an attenuator connected to the power splitter; a second radio frequency switch connected to the power splitter; an active filter chain connected to the second radio frequency switch; a third circulator connected to the attenuator and the first circulator; a power detector connected to the third circulator; and a trigger generator connected to the power detector.

Abstract: The present invention is a PNT system comprising: at least one antenna wherein each of the at least one antenna receives a frequency within a predetermined range; at least one band pass filter connected to each of the at least one antenna; at least one low noise amplifier connected to the at least one band pass filter; at least one oscillator connected to the at least one low noise amplifier; a local oscillator connected to the at least one low noise amplifier, wherein the local oscillator is used to change the frequency of the signal; a programmable gain amplifier connected to the local oscillator; a driver connected to the programmable gain amplifier; an analog to digital converter connected to the local oscillator; and a processor connected to the analog to digital converter.