By the way, both antennas are generally pointing in the same direction and have the same polarization. The correlated ambient signals from the two received time series are then canceled, creating a virtual third measurement channel. If you use the system to perform source localization, the EUT antenna used for the ambient cancellation test setup can remain in the same position, connected to Channel A, receiving both EUT and ambient emissions. However, in-place testing of a large EUT may be more practical if two antennas are used instead. Either way, the choice and location of sensors are not as important as they are for ambient cancellation.
Automatic port switching between multiple sensors, for example, accommodates band breaks.
You can also operate the system in peak, quasi-peak, or average detection modes. It's a generated list of data points that are equal to, or exceed, a current limit line. The system also offers graph legend and graph markers, and packs a useful data export function that will let you port your gathered data to Word files and Excel spreadsheets. Phase relationships between the two signals can be measured, and a coherence value of 0 to 1 can be assigned. A coherence value of 1 would indicate that the two signals are related and are from the same source, pinpointing the emissions source.