What does the L in L-band stand for?

by: Creonic GmbH. The Creonic L-band RF receiver FMC card allows to receive RF signals between 925 and 2,250 MHz . It is ideally suited for satellite communication with standard satellite dishes since it includes a DiSEqC driver IC for LNB controlling.

L band radars operate on a wavelength of 15-30 cm and a frequency of 1-2 GHz . L band radars are mostly used for clear air turbulence studies. S band radars operate on a wavelength of 8-15 cm and a frequency of 2-4 GHz. Because of the wavelength and frequency, S band radars are not easily attenuated.

The L-band, ranging from 1565 nm to 1625 nm, stands for the long-wavelength band (see Figure 1). It is the second primary wavelength band used for optical communication, because attenuation of optical fiber in the L-band is the second lowest after the C-band.

L band waves are used for GPS units because they are able to penetrate clouds, fog, rain, storms, and vegetation. Only dense environments such as heavy forest canopies or concrete buildings can cause GPS units to receive data inaccurately.