What is the main difference between the antennas for the SRM_3000 and the broadband probes such as those used with the EMR_300?
The EMR and SRM use different technologies, so they cannot really be compared with each other. The SRM_3000 is a frequency-selective field measurement system, whereas the EMR is designed for broadband measurements. The SRM receives the high frequency signals through an antenna or antenna array and analyzes the raw signal in terms of both amplitude and frequency in the instrument itself. The EMR probes also receive the high frequency signals through an antenna or antenna array initially, but then they are converted into a DC signal by means of diodes in the probe head. The EMR therefore only measures the amplitude.