Since World War II, radar systems engineers have used band letter designations as a short notation for describing the frequency band of operation. This usage has continued throughout the years and is now an accepted practice of radar engineers. Radar-frequency letter designations are used for the following reasons:
— They provide a convenient method for describing the band in which the radar operates without the need for awkwardly stating the limits of the frequency limits in numerical terms. For example, it is more convenient to say an “L-band radar” than a “1215 MHz- œ1400 MHz radar.” This is especially important in titles of published papers on radar, in advertising of radar systems and components, or in any other situation where a short notation is desired.
