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Kirt Blattenberger - RF Cafe Webmaster

Copyright: 1996 - 2024
Webmaster:
    Kirt Blattenberger,

    BSEE - KB3UON

RF Cafe began life in 1996 as "RF Tools" in an AOL screen name web space totaling 2 MB. Its primary purpose was to provide me with ready access to commonly needed formulas and reference material while performing my work as an RF system and circuit design engineer. The World Wide Web (Internet) was largely an unknown entity at the time and bandwidth was a scarce commodity. Dial-up modems blazed along at 14.4 kbps while typing up your telephone line, and a nice lady's voice announced "You've Got Mail" when a new message arrived...

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U.S. Radio Frequency Allocations - 30 MHz to 300 GHz
These are the United States radio frequency allocations per the wall chart issued by RF Design magazine in 2005.

As with all bureaucracies, the FCC (Federal Communications Commission) rules are changed all the time, so it behooves you to check the source for regulations on frequency allocations, power limits, modulation techniques, etc., prior to planning any serious production design or implementation. The responsibility is entirely yours to assure compliance.

Download the 2003 U.S. Frequency Allocation Chart published by U.U. Department of Commerce.

Download the 2007 "Selected U.S. Radio Frequency Allocations from 30 MHz to 300 GHz" wall chart PDF file from RF Design.




Application 30 MHz to 400 MHz 400 MHz to 3000 MHz 3 GHz to 35 GHz 35 GHz to 300 GHz
218-219 MHz Service
(formerly interactive video & data service)		 218-219      
Advanced Wireless Services including 3G   1915-1920, 1995-2000, 2020-2025, 2175-2180    
Aeronautical Communications & Navigation 74.8-75.2, 108-137, 328.6-335.4 849-851, 894-896, 960-1215, 1300-1350, 1435-1525, 1559-1626.5, 2700-2900 3.5-3.65, 4.2-4.4, 5.0-5.25, 5.35-5.65, 9.0-9.5, 13.25-13.4, 14.0-14.2, 15.4-15.7, 24.45-24.65, 24.75-25.05, 31.8-33.4 66-71, 252-265
Amateur Radio 50-54, 144-148, 216-220, 222-225 420-450, 902-928, 1240-1300, 2300-2310, 2390-2450 3.3-3.5, 5.65-5.925, 10-10.5, 24-24.5 47-47.2, 76-81, 122.25-123, 134-141, 241-250
Auditory Assistance Devices 72-73, 74.6-74.8, 75.2-76, 216.75-217      
Auxiliary Broadcasting 54-72, 76-108, 152.855-154, 161.625-161.775, 162.0125-173.2, 174-216 450-456, 470-608, 614-806, 944-960, 2025-2110, 2450-2483.5 6.425-6.525, 6.875-7.125, 12.7-13.25, 17.7-18.3, 19.3-19.7  
Cable TV Relay   2025-2110 6.425-6.525, 6.875-7.125, 12.7-13.25, 17.7-18.3, 19.3-19.7  
Cellular Phone Service   824-849 869-894  
Commercial Aviation Air-Ground Telephone   849-851, 894-896    
Dedicated Short-Range Communications     5.85-5.925  
Digital Audio Broadcasting   2310-2360    
Digital Electronic Messaging Service     24.25-24.45, 25.05-25.25  
Differential GPS 108-117.975 1559-1610    
Digital TV 54-400 400-698, 698-806 (transition period)    
Direct Broadcast Satellite     12.2-12.7, 17.3-24.75-25.25  
Family Radio Service   462.5625-467.7125    
Fixed Microwave   928-929, 932-935, 941-960, 1850-2000, 2110-2180, 2450-2483 4.94-4.99, 5.925-6.875, 10.55-10.68, 10.7-13.25, 14.2-14.4, 17.7-18.3, 19.3-19.7, 21.2-23.6, 24.25-24.45, 25.05-25.25, 27.5-29.5, 31-31.3 37-40, 42-42.5, 71-76, 81-86, 92-94, 94.1-95
Fixed Satellite   1390-1392, 1430-1432 3.6-4.2, 4.5-4.8, 5.85-7.075, 7.25-7.85, 7.9-8.4, 10.7-12.2, 12.7-13.25, 13.75-14.5, 15.43, 15.63, 17.3-21.2, 24.75-25.25, 27.5-31 37.5-42, 42.5-45.5, 47.2-50.2, 50.4-51.4, 71-76, 81-86, 123-130, 167-174.5, 209-226, 232-240, 238-241, 265-275
FM Broadcasting 88-108      
General Aviation Air to Ground Telephone   454.675-454.975, 459.675-459.975    
General Mobile Radio Service   462.55-467.725    
Industrial/Business Radio Pool 30-50, 72-76, 150-174, 216-220 406-413, 421-430, 450-470, 470-512, 800, 900    
Industrial Scientific & Medical 40-42 902-928, 2400-2500 5.625-5.925, 24.0-24.25 59.3-64, 116-123, 241-248
Instructional TV Fixed Service   2500-2690    
Local Multipoint Distribution Service     27.5-29.5, 31-31.3  
Location & Monitoring Service   902-928    
Low Power Radio Service 216.75-217.0      
Maritime Communications & Radar 154-161.625, 161.775-162.0125, 216-220 454-455, 456-460, 1525-1559, 1626.5-1660, 2900-3100 5.47-5.65, 9.2-9.3, 14.00-14.2  
Medical Implant Communications Service   402-405    
Millimeter Wave 70-80-90 GHz Service       71-76, 81-86, 91-94, 94.1-95
Mobile Satellite 137-138, 148-150.05, 399.9-400 400-400.05, 400.15-401, 406-406.1, 1525-1559, 1610-1660.5, 2000-2020, 2180-2200, 2483.5-2500 7.25-7.75, 7.9-8.4, 14-14.5, 19.7-21.2, 29.5-31 39.5-41, 43.5-47, 50.4-51.4, 66-74, 81-84, 123-130, 158.5-160, 191.8-200, 252-265
Multiple Address Systems   928-960    
Multipoint Distribution Service   2150-2162, 2596-2690    
Multi-Use Radio Service 151.82, 151,88, 151.94, 154.57, 154.60      
PCS Broadband   1850-1910, 1930-1990    
PCS Narrowband   901-902, 930-931, 940-941    
PCS Unlicensed   1910-1930, 2390-2400    
Petroleum Radio Service 36.25, 41.71, 150.980, 154.585, 158.445, 159.480 454. 459    
Public Mobile and Private Land Mobile 30.56-32, 33-34, 35-36, 37-38, 39-40, 40-40.98, 42-46.6, 47-49.6, 72-73, 74.6-74.8, 75.2-76, 150.8-156.2475, 157.0375-173.4, 216-222 410-455, 456-462.5375, 462.7375-467.5375, 467.7375-512, 764-901, 902-930, 931-940, 941-960, 1427-1432, 2110-2155, 2160-21802450-2483.5, 2900-3000 3.0-3.6, 4.94-4.99, 5.25-5.65, 5.85-5.925, 10.0-10.55, 13.4-14, 15.7-17.2, 33.4-35 35-36
Radio Astronomy 37.5-38.25, 73-74.6 406.1-410, 608-614, 1400-1427, 1610.6-1613.8, 1660-1670, 2690-2700 4.99-5, 10.68-10.7, 15.35-15.4, 22.21-22.5, 23.6-24, 31.3-31.8 42.5-43.5, 76-116, 123-158.5, 164-167, 182-185, 200-231.5, 241-275
Remote Control Models 72-73, 75.4-76      
Space Operation and Space Research 137-138 400.15-402, 410-420, 1215-1300, 1400-1427, 1660.5-1668.4, 2025-2110, 2200-2300, 2655-2700 3.1-3.3, 4.99-5.0, 5.25-5.57, 7.19-7.235, 8.4-8.65, 9.5-9.8, 10.6-10.7, 13.25-14.2, 14.5-15.4, 16.6-17.1, 17.2-17.3, 18.6-18.8, 21.2-21.4, 22.21-22.5, 23.6-24.0, 31.3-32.3, 34.2-34.7 40.0-50.5, 50.2-50.4, 52.6-59.3, 65-66, 74-84, 86-92, 94.0-94.1, 100-102, 105.0-122.5, 148.5-151.5, 155.5-158.5, 164-167, 174.8-191.8, 200-209, 217-231.5, 235-238, 250-252
Specialized Mobile Radio   806-821, 851-866, 896-901, 935-940    
Standard Frequency and Time Signal Satellite   400.05-400-15 13.4-14.0, 20.2-21.2, 25.25-27, 30-31  
Television 54-72-76-88-174-216 470-608, 614-806, 2025-2110    
Terrestrial Direct Broadcast Service     12.2-12.7  
Ultra Wideband (UWB)   below 960 1.99-10.6 or 3.1-10.6  
Vehicle Radar Systems     22-29 46.7-46.9, 76-77
Weather Instruments/Radar
/Satellites		 137-138 400.15-406, 449, 460-470, 1668.4-1710, 2700-3000 5.6-5.65, 10-10.025  
Wildlife Telemetry 40.66-40.7, 162-174, 217-220      
Wireless Medical Telemetry Service   608-614, 1395-1400, 1427-1432    
Wireless Microphones 54-72, 76-88, 169.445, 169.505, 170.245, 170.305, 171.045, 171.105, 171.845, 171.905, 174-216 470-608, 614-806    

Information derived from 2005 RF Design poster
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