what frequencies make up ka band?
Ka band. The Ka band (kay-ay band) covers the radio frequencies of 26.5â40 GHz, i.e. wavelengths from slightly over one centimeter down to 7.5 millimeters. The Ka band is part of the K band of the microwave band of the electromagnetic spectrum. This symbol refers to K-above: in other words, the band directly above the K-band.