The following interactive charts illustrate selected U.S. amateur radio frequency allocations by license class and FCC emission category. Select a frequency segment to view its boundaries and operating information.
CW ONLYSSB PHONESSB / IMAGE / OTHERRTTY / DATA / CWPHONE / IMAGE / RTTY / DATA / CWFIXED DIGITAL MESSAGE ONLYUSB / CW / RTTY / DATAOUT OF BOUNDS
Each row shows an amateur radio license class. Colored segments indicate the illustrated operating categories, and diagonal hatching indicates frequencies outside that class's allocation. Vertical lines mark allocation boundaries and band limits. Frequency labels are positioned above their corresponding bars, using two lanes where needed to reduce overlapping text. Select a colored segment to view its exact endpoints.
Technician CW privileges: 3.525–3.600 MHz, maximum 200 W PEP. Phone allocations begin at 3.600, 3.700, or 3.800 MHz depending on license class.
Four discrete channels centered at 5332, 5348, 5373, and 5405 kHz, each illustrated with a nominal 2.8-kHz width. The separate 5351.5–5366.5 kHz allocation is 15 kHz wide. Channel operation is limited to 100 W ERP, while the 15-kHz segment is limited to 9.15 W ERP. Different emission and operating requirements apply. Channel rectangles do not represent unrestricted tuning privileges.
General-class phone privileges begin at 7.175 MHz. Technician CW privileges: 7.025–7.125 MHz, maximum 200 W PEP. Limited geographic emission exceptions are not separately illustrated.
Maximum 200 W PEP. Phone is not authorized.
Technician CW privileges: 21.025–21.200 MHz, maximum 200 W PEP.
Technician: 28.000–28.300 MHz CW, RTTY, and data; 28.300–28.500 MHz SSB phone and CW. Maximum 200 W PEP.
These charts provide a simplified illustration of selected U.S. amateur frequency allocations. Category colors summarize emission types but do not identify every regulatory exception, regional restriction, operating condition, or power limitation. The chart should not be treated as an exhaustive statement of legal operating privileges. Verify current FCC regulations before transmitting.