Continuously scans and samples the signal strength (dBm) of RF transmissions within the specified frequency range. By default 3 traces are displayed — Current (green), Maxima (red) and Active (gray). The Current trace displays the signal strength data from the most recent scan, the Maxima trace displays the maximum signal strength for each frequency since the scan session began (similar to a ‘Peak and Hold’ function), and the Active trace displays real-time data as the RF Explorer device is actively scanning.