Radio Service Spectrum Intro amateur radio 135 kHz- 1240 MHz 1890s CB radio 27 MHz 1945 IVDS 218-219 MHz 1989 GMRS 462, 467 MHz FRS 462, 467 MHz 1996 MURS 151, 154 MHz 2000 CBRS 3550-3700 MHz 2015 ...