They made significant contributions to the basic understanding of methods, theories, and circuits at very-high and ultra-high frequencies for radio systems, particularly in signals intelligence gear and statistical communications techniques.
However, unlike the Rad Lab, the RRL never released significant details on its accomplishments; ECM and ECCM have always been closely guarded secrets by all nations.
The RRL conducted considerable work on chaff, light-weight aluminum strips dropped in clouds from aircraft to confuse enemy radars.
Fred L. Whipple, an astronomer, made detailed analytical studies of this and devised a formula giving radar cross-section at a given wavelength per kilogram of chaff.
The power tube (called Resnatron) for Tuba was developed at the RRL by David H. Shone and Lauritsen C. Marshall.