References in periodicals archive ?
Transponders receive an electromagnetic or radiofrequency signal from the Earth, amplify it, and send it back to Earth.
Effects of cell phone radiofrequency signal exposure on brain glucose metabolism.
That radiofrequency signal has been mapped pixel by pixel to actual histology from human pathologic specimens.
Ultrasonic B-scan radiofrequency signal acquisition and processing methodology was developed and a map of frequency-related parameters was synthesized.