With the advancement in technology around spectrum and signal analysis, software is now used in combination with directional antennas to map out interference. Interference finding is becoming more critical as more communication systems are being developed across different bandwidth’s. Whether it is for realigning transmission antennas or product testing in the real world environment, these are great tools for mobile testing. Having similar features to a benchtop signal analyzer, these devices have built in GPS integrated with mapping. With low noise figure, fast sweep times and various demodulations, RF signals can be detected, analyzed and localized.