Amateur Radio Frequency Allocations

Complete frequency chart showing authorized amateur radio bands and their permitted uses in the United States

Quick Navigation

HF Bands (High Frequency)

Long-distance communication bands for worldwide contacts

Band
Frequency Range
Modes
Power Limit
Notes
160m
1.8 - 2.0 MHz
CW, SSB, Digital
1500W PEP
Night propagation, local to regional
80m
3.5 - 4.0 MHz
CW, SSB, Digital
1500W PEP
Good night propagation, regional to worldwide
60m
5.3305, 5.3465, 5.3570, 5.3715, 5.4035 MHz
USB Only
100W ERP
5 specific channels, limited power
40m
7.0 - 7.3 MHz
CW, SSB, Digital
1500W PEP
Day/night propagation, worldwide
30m
10.1 - 10.15 MHz
CW, Digital Only
200W PEP
No voice allowed, worldwide
20m
14.0 - 14.35 MHz
CW, SSB, Digital
1500W PEP
Primary DX band, worldwide
17m
18.068 - 18.168 MHz
CW, SSB, Digital
1500W PEP
WARC band, worldwide
15m
21.0 - 21.45 MHz
CW, SSB, Digital
1500W PEP
Day propagation, worldwide
12m
24.89 - 24.99 MHz
CW, SSB, Digital
1500W PEP
WARC band, sporadic E
10m
28.0 - 29.7 MHz
CW, SSB, Digital, FM
1500W PEP
Sporadic E, F2 propagation

VHF Bands (Very High Frequency)

Line-of-sight and local communication bands

Band
Frequency Range
Modes
Power Limit
Notes
6m
50.0 - 54.0 MHz
CW, SSB, Digital, FM
1500W PEP
Magic band, sporadic E
2m
144.0 - 148.0 MHz
CW, SSB, Digital, FM
1500W PEP
Most popular VHF band
1.25m
222.0 - 225.0 MHz
CW, SSB, Digital, FM
1500W PEP
Limited availability

UHF Bands (Ultra High Frequency)

Higher frequency bands for local and satellite communication

Band
Frequency Range
Modes
Power Limit
Notes
70cm
420.0 - 450.0 MHz
CW, SSB, Digital, FM
1500W PEP
Popular UHF band, satellites
33cm
902.0 - 928.0 MHz
CW, SSB, Digital, FM
1500W PEP
Part 15 devices present
23cm
1240.0 - 1300.0 MHz
CW, SSB, Digital, FM
1500W PEP
Satellite and weak signal

SHF Bands (Super High Frequency)

Microwave bands for experimental and satellite communication

Band
Frequency Range
Modes
Power Limit
Notes
13cm
2300.0 - 2310.0 MHz
CW, SSB, Digital, FM
1500W PEP
Limited segment
9cm
3300.0 - 3500.0 MHz
CW, SSB, Digital, FM
1500W PEP
Experimental
5cm
5650.0 - 5925.0 MHz
CW, SSB, Digital, FM
1500W PEP
Wide bandwidth
3cm
10000.0 - 10500.0 MHz
CW, SSB, Digital, FM
1500W PEP
10 GHz band

Operating Modes

Different types of communication modes authorized for amateur radio

CW (Morse Code)

Continuous Wave - traditional Morse code communication

  • All bands
  • Efficient for weak signals
  • International language

SSB (Single Sideband)

Voice communication using single sideband modulation

  • HF and VHF bands
  • Most common voice mode
  • Efficient bandwidth usage

FM (Frequency Modulation)

Voice communication using frequency modulation

  • VHF/UHF bands
  • High quality audio
  • Repeater operation

Digital Modes

Computer-based communication modes

  • FT8, FT4, PSK31
  • RTTY, SSTV
  • All bands

Satellite

Communication via amateur satellites

  • VHF/UHF/SHF bands
  • Cross-band operation
  • International contacts

Data/APRS

Digital data transmission and tracking

  • Packet radio
  • APRS tracking
  • VHF/UHF bands

Important Notes

Power Limits

Maximum power is 1500W PEP (Peak Envelope Power) for most bands. Some bands have lower limits.

License Class

Access to certain bands depends on your license class (Technician, General, Amateur Extra).

Band Plans

Follow voluntary band plans for mode segregation and efficient use of spectrum.

International

Frequency allocations may vary by country. Check local regulations when operating abroad.