enprobe developes fiber-optic active antennas (field probes) and analog fiber-optic links for the measurement of RF electric fields.
Their outstanding characteristic is the unparalleled small size combined with an all-optical signal transmission and power supply. This makes the equipment invisible to the field - the field distortion gets negligible.
But you get a bit more: No matter whether you measure in frequency or time domain, the probes always deliver the full spectral or temporal information of the field, respectively.
This opens up a plenty of new options in post-processing and analyzing the measurement results.