It's good practice--and plain old common sense--for any operator, regardless of mode, to check to see if the frequency is in use prior to engaging operation. If you are there first, other operators should make an effort to protect you from interference to the extent possible, given that 100% interference-free operation is an unrealistic expectation in today's congested bands. Listed below is the ARRL Band Plan for your convenience. 160 Meters (1.8-2.0 MHz):
- 1.800 - 2.000 CW
- 1.800 - 1.810 Digital Modes
- 1.810 CW QRP
- 1.843-2.000 SSB, SSTV and other wideband modes
- 1.910 SSB QRP
- 1.995 - 2.000 Experimental
- 1.999 - 2.000 Beacons
80 Meters (3.5-4.0 MHz):
- 3.590 RTTY/Data DX
- 3.570-3.600 RTTY/Data
- 3.790-3.800 DX window
- 3.845 SSTV
- 3.885 AM calling frequency
40 Meters (7.0-7.3 MHz):
- 7.040 RTTY/Data DX
- 7.080-7.125 RTTY/Data
- 7.171 SSTV
- 7.290 AM calling frequency
30 Meters (10.1-10.15 MHz):
- 10.130-10.140 RTTY
- 10.140-10.150 Packet
20 Meters (14.0-14.35 MHz):
- 14.070-14.095 RTTY
- 14.095-14.0995 Packet
- 14.100 NCDXF Beacons
- 14.1005-14.112 Packet
- 14.230 SSTV
- 14.286 AM calling frequency
17 Meters (18.068-18.168 MHz):
- 18.100-18.105 RTTY
- 18.105-18.110 Packet
15 Meters (21.0-21.45 MHz):
- 21.070-21.110 RTTY/Data
- 21.340 SSTV
12 Meters (24.89-24.99 MHz):
- 24.920-24.925 RTTY
- 24.925-24.930 Packet
10 Meters (28-29.7 MHz):
- 28.000-28.070 CW
- 28.070-28.150 RTTY
- 28.150-28.190 CW
- 28.200-28.300 Beacons
- 28.300-29.300 Phone
- 28.680 SSTV
- 29.000-29.200 AM
- 29.300-29.510 Satellite Downlinks
- 29.520-29.590 Repeater Inputs
- 29.600 FM Simplex
- 29.610-29.700 Repeater Outputs
6 Meters (50-54 MHz):
- 50.0-50.1 CW, beacons
- 50.060-50.080 beacon subband
- 50.1-50.3 SSB, CW
- 50.10-50.125 DX window
- 50.125 SSB calling
- 50.3-50.6 All modes
- 50.6-50.8 Nonvoice communications
- 50.62 Digital (packet) calling
- 50.8-51.0 Radio remote control (20-kHz channels)
- 51.0-51.1 Pacific DX window
- 51.12-51.48 Repeater inputs (19 channels)
- 51.12-51.18 Digital repeater inputs
- 51.5-51.6 Simplex (six channels)
- 51.62-51.98 Repeater outputs (19 channels)
- 51.62-51.68 Digital repeater outputs
- 52.0-52.48 Repeater inputs (except as noted; 23 channels)
- 52.02, 52.04 FM simplex
- 52.2 TEST PAIR (input)
- 52.5-52.98 Repeater output (except as noted; 23 channels)
- 52.525 Primary FM simplex
- 52.54 Secondary FM simplex
- 52.7 TEST PAIR (output)
- 53.0-53.48 Repeater inputs (except as noted; 19 channels)
- 53.0 Remote base FM simplex
- 53.02 Simplex
- 53.1, 53.2, 53.3, 53.4 Radio remote control
- 53.5-53.98 Repeater outputs (except as noted; 19 channels)
- 53.5, 53.6, 53.7, 53.8 Radio remote control
- 53.52, 53.9 Simplex
2 Meters (144-148 MHz):
- 144.00-144.05 EME (CW)
- 144.05-144.10 General CW and weak signals
- 144.10-144.20 EME and weak-signal SSB
- 144.200 National calling frequency
- 144.200-144.275 General SSB operation
- 144.275-144.300 Propagation beacons
- 144.30-144.50 New OSCAR subband
- 144.50-144.60 Linear translator inputs
- 144.60-144.90 FM repeater inputs
- 144.90-145.10 Weak signal and FM simplex (145.01,03,05,07,09 are widely used for packet)
- 145.10-145.20 Linear translator outputs
- 145.20-145.50 FM repeater outputs
- 145.50-145.80 Miscellaneous and experimental modes
- 145.80-146.00 OSCAR subband
- 146.01-146.37 Repeater inputs
- 146.40-146.58 Simplex
- 146.52 National Simplex Calling Frequency
- 146.61-146.97 Repeater outputs
- 147.00-147.39 Repeater outputs
- 147.42-147.57 Simplex
- 147.60-147.99 Repeater inputs
Notes: The frequency 146.40 MHz is used in some areas as a repeater input. This band plan has been proposed by the ARRL VHF-UHF Advisory Committee.
1.25 Meters (222-225 MHz):
- 222.0-222.150 Weak-signal modes
- 222.0-222.025 EME
- 222.05-222.06 Propagation beacons
- 222.1 SSB & CW calling frequency
- 222.10-222.15 Weak-signal CW & SSB
- 222.15-222.25 Local coordinator's option; weak signal, ACSB, repeater inputs, control
- 222.25-223.38 FM repeater inputs only
- 223.40-223.52 FM simplex
- 223.52-223.64 Digital, packet
- 223.64-223.70 Links, control
- 223.71-223.85 Local coordinator's option; FM simplex, packet, repeater outputs
- 223.85-224.98 Repeater outputs only
Note: The 222 MHz band plan was adopted by the ARRL Board of Directors in July 1991.
70 Centimeters (420-450 MHz):
- 420.00-426.00 ATV repeater or simplex with 421.25 MHz video carrier control links and experimental
- 426.00-432.00 ATV simplex with 427.250-MHz video carrier frequency
- 432.00-432.07 EME (Earth-Moon-Earth)
- 432.07-432.10 Weak-signal CW
- 432.10 70-cm calling frequency
- 432.10-432.30 Mixed-mode and weak-signal work
- 432.30-432.40 Propagation beacons
- 432.40-433.00 Mixed-mode and weak-signal work
- 433.00-435.00 Auxiliary/repeater links
- 435.00-438.00 Satellite only (internationally)
- 438.00-444.00 ATV repeater input with 439.250-MHz video carrier frequency and repeater links
- 442.00-445.00 Repeater inputs and outputs (local option)
- 445.00-447.00 Shared by auxiliary and control links, repeaters and simplex (local option)
- 446.00 National simplex frequency
- 447.00-450.00 Repeater inputs and outputs (local option)
33 Centimeters (902-928 MHz):
- 902.0-903.0 Narrow-bandwidth, weak-signal communications
- 902.0-902.8 SSTV, FAX, ACSSB, experimental
- 902.1 Weak-signal calling frequency
- 902.8-903.0 Reserved for EME, CW expansion
- 903.1 Alternate calling frequency
- 903.0-906.0 Digital communications
- 906-909 FM repeater inputs
- 909-915 ATV
- 915-918 Digital communications
- 918-921 FM repeater outputs
- 921-927 ATV
- 927-928 FM simplex and links
Note: The 902 MHz band plan was adopted by the ARRL Board of Directors in July 1989
23 Centimeters (1240-1300 MHz):
- 1240-1246 ATV #1
- 1246-1248 Narrow-bandwidth FM point-to-point links and digital, duplex with 1258-1260.
- 1248-1258 Digital Communications
- 1252-1258 ATV #2
- 1258-1260 Narrow-bandwidth FM point-to-point links digital, duplexed with 1246-1252
- 1260-1270 Satellite uplinks, reference WARC '79
- 1260-1270 Wide-bandwidth experimental, simplex ATV
- 1270-1276 Repeater inputs, FM and linear, paired with 1282-1288, 239 pairs every 25 kHz, e.g. 1270.025, .050, etc.
- 1271-1283 Non-coordinated test pair
- 1276-1282 ATV #3
- 1282-1288 Repeater outputs, paired with 1270-1276
- 1288-1294 Wide-bandwidth experimental, simplex ATV
- 1294-1295 Narrow-bandwidth FM simplex services, 25-kHz channels
- 1294.5 National FM simplex calling frequency
- 1295-1297 Narrow bandwidth weak-signal communications (no FM)
- 1295.0-1295.8 SSTV, FAX, ACSSB, experimental
- 1295.8-1296.0 Reserved for EME, CW expansion
- 1296.00-1296.05 EME-exclusive
- 1296.07-1296.08 CW beacons
- 1296.1 CW, SSB calling frequency
- 1296.4-1296.6 Crossband linear translator input
- 1296.6-1296.8 Crossband linear translator output
- 1296.8-1297.0 Experimental beacons (exclusive)
- 1297-1300 Digital Communications
- 2300-2310 and 2390-2450 MHz:
- 2300.0-2303.0 High-rate data
- 2303.0-2303.5 Packet
- 2303.5-2303.8 TTY packet
- 2303.9-2303.9 Packet, TTY, CW, EME
- 2303.9-2304.1 CW, EME
- 2304.1 Calling frequency
- 2304.1-2304.2 CW, EME, SSB
- 2304.2-2304.3 SSB, SSTV, FAX, Packet AM, Amtor
- 2304.30-2304.32 Propagation beacon network
- 2304.32-2304.40 General propagation beacons
- 2304.4-2304.5 SSB, SSTV, ACSSB, FAX, Packet AM, Amtor experimental
- 2304.5-2304.7 Crossband linear translator input
- 2304.7-2304.9 Crossband linear translator output
- 2304.9-2305.0 Experimental beacons
- 2305.0-2305.2 FM simplex (25 kHz spacing)
- 2305.20 FM simplex calling frequency
- 2305.2-2306.0 FM simplex (25 kHz spacing)
- 2306.0-2309.0 FM Repeaters (25 kHz) input
- 2309.0-2310.0 Control and auxiliary links
- 2390.0-2396.0 Fast-scan TV
- 2396.0-2399.0 High-rate data
- 2399.0-2399.5 Packet
- 2399.5-2400.0 Control and auxiliary links
- 2400.0-2403.0 Satellite
- 2403.0-2408.0 Satellite high-rate data
- 2408.0-2410.0 Satellite
- 2410.0-2413.0 FM repeaters (25 kHz) output
- 2413.0-2418.0 High-rate data
- 2418.0-2430.0 Fast-scan TV
- 2430.0-2433.0 Satellite
- 2433.0-2438.0 Satellite high-rate data
- 2438.0-2450.0 WB FM, FSTV, FMTV, SS experimental
Note: The 2300 MHz band plan was adopted by the ARRL Board of Directors in January 1991
Note: The following band plans were adopted by the ARRL Board of Directors in July 1988
3300-3500 MHz:
- 3456.3-3456.4 Propagation beacons
5650-5925 MHz:
- 5760.3-5760.4 Propagation beacons
10.00-10.50 GHz:
- 10.368 Narrow band calling frequency 10.3683-10.3684 Propagation beacons
- 10.3640 Calling frequency
Above 10.50 GHz:*
All modes and licensees (except Novices) are authorized on the following bands:
- 24.0-24.25 GHz
- 47.0-47.2 GHz
- 76-81.0 GHz
- 122.25-123 GHz
- 134-141 GHz
- 241.0-250.0 GHz
- All above 275 GHz
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