Common frequencies ▼
AM radio - 535 kilohertz to 1.7 megahertz Garage door openers, alarm systems, etc. - Around 40 megahertz MIR space station: 145 megahertz and 437 megahertz
Short wave radio - bands from 5.9 megahertz to 26.1 megahertz Standard cordless phones: Bands from 40 to 50 megahertz Cell phones: 824 to 849 megahertz 900-MHz
Citizens band (CB) radio - 26.96 megahertz to 27.41 megahertz Baby monitors: 49 megahertz cordless phones: 900 megahertz
Television stations - 54 to 88 megahertz for channels 2 through 6 Radio controlled airplanes: Around 72 megahertz selected 2.1-GHz cordless phones: 2.1 gigahertz selected
FM radio - 88 megahertz to 108 megahertz Radio controlled cars: Around 75 megahertz Air traffic control radar: 960 to 1,215 megahertz
Television stations - 174 to 220 megahertz for channels 7 through 13 Wildlife tracking collars: 215 to 220 megahertz Global Positioning System: 1,227 and 1,575 megahertz 
Deep space radio communications: 2290 megahertz to 2300 megahertz