 This frequency is in the S band which is still used by the current US weather radar network.Thanks to the radars operative frequency, the attenuation due to the rain was almost zero, but the detection of a light rain or snow was delicate because of the weakness of the signal emitted by the radar (50 kW).The WSR-1 used a panoramic display (PPI) placing weather echoes in azimuth/distance coordinates on a circular screen whose center represented the position of the radar, and also a linear oscilloscope (A-Scope) showing the intensity of the echoes according to their distance from the radar.