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- Subpart D -- Technical Standards
-
- S 97.301 Authorized frequency bands.
-
- The following transmitting frequency bands are available
- to an amateur station located within 50 km of the Earth's
- surface, within the specified ITU Region and out side any area
- where the amateur service is regulated by another country of
- another United States government agency.
-
- (a) For a station having a control operator holding a
- Technician, General, Advanced or Amateur Extra Class operator
- license:
-
- Wavelength ITU ITU ITU Sharing requirements
- band Region 1 Region 2 Region 3 See S 97.303,
- Paragraph:
-
- VHF MHz MHz MHz
- 6 m --- 50-54 50-54 (a)
- 2 m 144-146 144-148 144-148 (a)
- 1.25 m --- 220-225 --- (a), (b), (e)
-
- UHF MHz MHz MHz
- 70 cm 430-440 420-450 430-440 (a), (b), (f)
- 33 cm --- 902-928 --- (a), (b), (g)
- 23 cm 1240-1300 1240-1300 1240-1300 (j)
- 13 cm 2300-2310 2300-2310 2300-2310 (a), (b), (j)
- -do- 2390-2450 2390-2450 2390-2450 (a), (b), (j)
-
- SHF GHz GHz GHz
- 9 cm --- 3.3-3.5 3.3-3.5 (a), (b), (k), (l)
- 5 cm 5.650-5.850 5.650-5.925 5.650-5.850 (a), (b), (m)
- 3 cm 10.00-10.50 10.00-10.50 10.00-10.50 (b), (c), (i), (n)
- 1.2 cm 24.00-24.25 24.00-24.25 24.00-24.25 (a), (b), (i), (o)
-
- EHF GHz GHz GHz
- 6 mm 47.0-47.2 47.0-47.2 47.0-47.2
- 4 mm 75.5-81.0 75.5-81.0 75.5-81.0 (b), (c), (h)
- 2.5 mm 119.98-120.02 119.98-120.02 119.98-120.02 (k), (p)
- 2 mm 142-149 142-149 142-149 (b), (c), (h), (k)
- 1 mm 241-250 241-250 241-250 (b), (c), (h), (q)
- --- above 300 above 300 above 300 (k)
-
-
- (b) For a station having a control operator holding an
- Amateur Extra Class operator license:
-
- Wavelength ITU ITU ITU Sharing requirements
- band Region 1 Region 2 Region 3 See S 97.303,
- Paragraph:
-
- MF kHz kHz kHz
- 160 m 1810-1850 1800-2000 1800-2000 (a), (b), (c)
-
-
- HF MHz MHz MHz
- 80 m 3.50-3.75 3.50-3.75 3.50-3.75 (a)
- 75 m 3.75-3.80 3.75-4.00 3.75-3.90 (a)
- 40 m 7.0-7.1 7.0-7.3 7.0-7.1 (a)
- 30 m 10.10-10.15 10.10-10.15 10.10-10.15 (d)
- 20 m 14.00-14.35 14.00-14.35 14.00-14.35
- 17 m 18.068-18.168 18.068-18.168 18.068-18.168
- 15 m 21.00-21.45 21.00-21.45 21.00-21.45
- 12 m 24.89-24.99 24.89-24.99 24.89-24.99
- 10 m 28.0-29.7 28.0-29.7 28.0-29.7
-
-
- (c) For a station having a control operator holding an
- Advanced Class operator license:
-
- Wavelength ITU ITU ITU Sharing requirements
- band Region 1 Region 2 Region 3 See S 97.303,
- Paragraph:
-
- MF kHz kHz kHz
- 160 m 1810-1850 1800-2000 1800-2000 (a), (b), (c)
-
- HF MHz MHz MHz
- 80 m 3.525-3.750 3.525-3.750 3.525-3.750 (a)
- 75 m 3.775-3.800 3.775-4.000 3.775-3.900 (a)
- 40 m 7.025-7.100 7.025-7.300 7.025-7.100 (a)
- 30 m 10.10-10.15 10.10-10.15 10.10-10.15 (d)
- 20 m 14.025-14.150 14.025-14.150 14.025-14.150
- -do- 14.175-14.350 14.175-14.350 14.175-14.350
- 17 m 18.068-18.168 18.068-18.168 18.068-18.168
- 15 m 21.025-21.200 21.025-21.200 21.025-21.200
- -do- 21.30-21.45 21.30-21.45 21.30-21.45
- 12 m 24.89-24.99 24.89-24.99 24.89-24.99
- 10 m 28.0-29.7 28.0-29.7 28.0-29.7
-
-
- (d) For a station having a control operator holding a
- General Class operator license:
-
- Wavelength ITU ITU ITU Sharing requirements
- band Region 1 Region 2 Region 3 See S 97.303,
- Paragraph:
-
- MF kHz kHz kHz
- 160 m 1810-1850 1800-2000 1800-2000 (a), (b), (c)
-
- HF MHz MHz MHz
- 80 m 3.525-3.750 3.525-3.750 3.525-3.750 (a)
- 75 m --- 3.85-4.00 --- (a)
- 40 m 7.025-7.100 7.025-7.100 7.025-7.100 (a)
- -do- --- 7.225-7.300 --- (a)
- 30 m 10.10-10.15 10.10-10.15 10.10-10.15 (d)
- 20 m 14.025-14.150 14.025-14.150 14.025-14.150
- -do- 14.225-14.350 14.225-14.350 14.225-14.350
- 17 m 18.068-18.168 18.068-18.168 18.068-18.168
- 15 m 21.025-21.200 21.025-21.200 21.025-21.100
- -do- 21.30-21.45 21.30-21.45 21.30-21.45
- 12 m 24.89-24.99 24.89-24.99 24.89-24.99
- 10 m 28.0-29.7 28.0-29.7 28.0-29.7
-
-
- (e) For a station having a control operator holding a
- Technician or Novice Class operator license:
-
- Wavelength ITU ITU ITU Sharing requirements
- band Region 1 Region 2 Region 3 See S 97.303,
- Paragraph:
-
- HF MHz MHz MHz
- 80 m 3.70-3.75 3.70-3.75 3.70-3.75 (a)
- 40 m 7.050-7.075 7.10-7.15 7.050-7.075 (a)
- 15 m 21.10-21.20 21.10-21.20 21.10-21.20
- 10 m 28.1-28.5 28.1-28.5 28.1-28.5
-
-
- (f) For a station having a control operator holding a
- Novice Class operator license:
-
-
- Wavelength ITU ITU ITU Sharing requirements
- band Region 1 Region 2 Region 3 See S 97.303,
- Paragraph:
-
- VHF MHz MHz MHz
- 1.25 m --- 222.10-223.91 --- (a), (b), (e)
-
- UHF MHz MHz MHz
- 23 cm 1270-1295 1270-1295 1270-1295 (i)
-
-
- S 97.303 Frequency sharing requirements.
-
- The following is a summary of the frequency sharing
- requirements that apply to amateur station transmissions on the
- frequency bands specified in S 97.301 of this Part. (For each ITU
- Region, each frequency band allocated to the amateur service is
- designated as either a secondary service or a primary service. A
- station in a secondary service must not cause harmful
- interference to, and must accept interference from, stations in a
- primary service. See SS 2.105 and 2.106 of the FCC Rules, United
- States Table of Frequency Allocations for complete requirements.)
-
- (a) Where, in adjacent ITU Regions or Subregions, a band
- of frequencies is allocated to different services of the same
- category, the basic principle is the equality of right to
- operate. The stations of each service in one region must operate
- so as not to cause harmful interference to services in the other
- Regions or Subregions. (See ITU Radio Regulations, No. 346
- (Geneva, 1979).)
-
- (b) No amateur station transmitting in the 1900-2000 kHz
- segment, the 1.25 m band, the 70 cm band, the 33 cm band, the 13
- cm band, the 9 cm band, the 5 cm band, the 3 cm band, the 24.05-
- 24.24 GHz segment, the 76-81 GHz segment, the 144-149 GHz segment
- and the 241-248 GHz segment shall cause harmful interference to,
- nor is protected from interference due to the operation of, the
- Government radiolocation service.
-
- (c) No amateur station transmitting in the 1900-2000 kHz
- segment, the 3 cm band, the 76-81 GHz segment, the 144-149 GHz
- segment and the 241-248 GHz segment shall cause harmful
- interference to, nor is protected from interference due to the
- operation of, stations in the non-Government radiolocation
- service.
-
- (d) No amateur station transmitting in the 30 meter band
- shall cause harmful interference to stations authorized by other
- nations in the fixed service. The licensee of the amateur station
- must make all necessary adjustments, including termination of
- transmissions, if harmful interference is caused.
-
- (e) The 1.25 m band is allocated to the amateur, fixed
- and mobile services in the United States on a co-primary basis.
- The basic principle that applies is the equality of right to
- operate. Amateur, fixed and mobile stations must operate so as
- not to cause harmful interference to each other.
-
- (f) In the 70 cm band:
-
- (1) No amateur station shall transmit from north of Line
- A in the 420-430 MHz segment.
-
- (2) The 420-430 MHz segment is allocated to the amateur
- service in the United States on a secondary basis, and is
- allocated in the fixed and mobile (except aeronautical mobile)
- services in the International Table of allocations on a primary
- basis. No amateur station transmitting in this band shall cause
- harmful interference to, nor is protected from interference due
- to the operation of, stations authorized by other nations in the
- fixed and mobile (except aeronautical mobile) services.
-
- (3) The 430-440 MHz segment is allocated to the amateur
- service on a secondary basis in ITU Regions 2 and 3. No amateur
- station transmitting in this band in ITU Regions 2 and 3 shall
- cause harmful interference to, nor is protected from interference
- due to the operation of, stations authorized by other nations in
- the radiolocation service. In ITU Region 1, the 430-440 MHz
- segment is allocated to the amateur service on a co-primary basis
- with the radiolocation service. As between these two services in
- this band in ITU Region 1, the basic principle that applies is
- the equality of right to operate. Amateur stations authorized by
- the United States and radiolocation stations authorized by other
- nations in ITU Region 1 shall operate so as not to cause harmful
- interference to each other.
-
- (4) No amateur station transmitting in the 449.5-450 MHz
- segment shall cause interference to, nor is protected from
- interference due to the operation of stations in, the space
- operation service and the space research service or Government or
- non-Government stations for space telecommand.
-
- (g) In the 33 cm band:
-
- (1) No amateur station shall transmit from within the
- States of Colorado and Wyoming, bounded on the south by latitude
- 39\o/ N, on the north by latitude 42\o/ N, on the east by
- longitude 105\o/ W, and on the west by longitude 180\o/ W. This
- band is allocated on a secondary basis to the amateur service
- subject to not causing harmful interference to, and not receiving
- protection from any interference due to the operation of,
- industrial, scientific and medical devices, automatic vehicle
- monitoring systems or Government stations authorized in this
- band.
-
- (2) No amateur station shall transmit from those portions
- of the States of Texas and New Mexico bounded on the south by
- latitude 31\o/ 41' N, on the north by latitude 34\o/ 30'N, on the
- east by longitude 104\o/ 11' W, and on the west by longitude
- 107\o/ 30'W.
-
- (h) No amateur station transmitting in the 23 cm band,
- the 3 cm band, the 24.05-24.25 GHz segment, the 76-81 GHz
- segment, the 144-149 GHz segment and the 241-248 GHz segment
- shall cause harmful interference to, nor is protected from
- interference due to the operation of, stations authorized by
- other nations in the radiolocation service.
-
- (i) In the 1240-1260 MHz segment, no amateur station
- shall cause harmful interference to, nor is protected from
- interference due to the operation of, stations in the
- radionavigation- satellite service.
-
- (j) In the 13 cm band:
-
- (1) The amateur service is allocated on a secondary basis
- in all ITU Regions. In ITU Region 1, no amateur station shall
- cause harmful interference to, and is not protected from
- interference due to the operation of, stations authorized by
- other nations in the fixed service. In ITU Regions 2 and 3, no
- station shall cause harmful interference to, and is not protected
- from interference due to the operation of, stations authorized by
- other nations in the fixed, mobile and radiolocation services.
-
- (2) In the United States, the 2300-2310 MHz segment is
- allocated to the amateur service on a co-secondary basis with the
- Government fixed and mobile services. In this segment, the fixed
- and mobile services must not cause harmful interference to the
- amateur service. No amateur station transmitting in the 2400-2450
- MHz segment is protected from interference due to the operation
- of industrial, scientific and medical devices on 2450 MHz.
-
- (k) No amateur station transmitting in the 3.332-3.339
- GHz and 3.3458-3525 GHz segments, the 2.5 mm band, the
- 144.68-144.98 GHz, 145.45-145.75 and 146.82-147.12 GHz segments
- and the 343-348 GHz segment shall cause harmful interference to
- stations in the radio astronomy service. No amateur station
- transmitting in the 300-302 GHz, 324-326 GHz, 345-347 GHz,
- 363-365 GHz and 379-381 GHz segments shall cause harmful
- interference to stations in the space research service (passive)
- or Earth exploration-satellite service (passive).
-
- (l) In the 9 cm band:
-
- (1) In ITU Regions 2 and 3, the band is allocated to the
- amateur service on a secondary basis.
-
- (2) In the United States, the band is allocated to the
- amateur service on a co-secondary basis with the non-Government
- radiolocation service.
-
- (3) In the 3.3-3.4 GHz segment, no amateur station shall
- cause harmful interference to, nor is protected from interference
- due to the operation of, stations authorized by other nations in
- the radiolocation service.
-
- (4) In the 3.4-3.5 GHz segment, no amateur station shall
- cause harmful interference to, nor is protected from interference
- due to the operation of, stations authorized by other nations in
- the fixed and fixed-satellite service.
-
- (m) In the 5 cm band:
-
- (1) In the 5.650-5.725 GHz segment, the amateur service
- is allocated in all ITU Regions on a co-secondary basis with the
- space research (deep space) service.
-
- (2) In the 5.725-5.850 GHz segment, the amateur service
- is allocated in all ITU Regions on a secondary basis. No amateur
- station shall cause harmful interference to, nor is protected
- from interference due to the operation of, stations authorized by
- other nations in the fixed-satellite service in ITU Region 1.
-
- (3) No amateur station transmitting in the 5.725-5.875
- GHz segment is protected from interference due to the operation
- of industrial, scientific and medical devices operating on 5.8
- GHz.
-
- (4) In the 5.650-5.850 GHz segment, no amateur station
- shall cause harmful interference to, nor is protected from
- interference due to the operation of, stations authorized by
- other nations in the radiolocation service.
-
- (5) In the 5.850-5.925 GHz segment, the amateur service
- is allocated in ITU Region 2 on a co-secondary basis with the
- radiolocation service. In the United States, the segment is
- allocated to the amateur service on a secondary basis to the non-
- Government fixed-satellite service. No amateur station shall
- cause harmful interference to, nor is protected from interference
- due to the operation of, stations authorized by other nations in
- the fixed, fixed-satellite and mobile services. No amateur
- station shall cause harmful interference to, nor is protected
- from interference due to the operation of, stations in the non-
- Government fixed-satellite service.
-
- (n) In the 3 cm band:
-
- (1) In the United States, the 3 cm band is allocated to
- the amateur service on a co-secondary basis with the
- non-government radiolocation service.
-
- (2) In the 10.00-10.45 segment in ITu Regions 1 and 3, no
- amateur station shall cause interference to, nor is protected
- from interference due to the operation of, stations authorized by
- other nations in the fixed and mobile services.
-
- (o) No amateur station transmitting in the 1.2 cm band is
- protected from interference due to the operation of industrial,
- scientific and medical devices on 24.125 GHz. In the United
- States, the 24.05-24.25 GHz segment is allocated to the amateur
- service on a co-secondary basis with the non-government
- radiolocation and Government and non-government Earth
- exploration-satellite (active) services.
-
- (p) The 2.5 mm band is allocated to the amateur service
- on a secondary basis. No amateur station transmitting in this
- band shall cause harmful interference to, nor is protected from
- interference due to the operation of, stations in the fixed,
- inter-satellite and mobile services.
-
- (q) No amateur station transmitting in the 244-246 GHz
- segment of the 1 mm band is protected from interference due to
- the operation of industrial, scientific and medical devices on
- 245 GHz.
-
- S 97.305 Authorized emission types.
-
- (a) An amateur station may transmit a CW emission on any
- frequency authorized to the control operator.
-
- (b) A station may transmit a test emission on any
- frequency authorized to the control operator for brief periods
- for experimental purposes, except that no pulse modulation
- emission may be transmitted on any frequency where pulse is not
- specifically authorized.
-
- (c) A station may transmit the following emission types
- on the frequencies indicated, as authorized to the control
- operator, subject to the standards specified in S 97.307(f) of
- this Part.
-
-
- Wavelength Frequencies Emission types Standards
- band authorized See S 97.307(f)
- Paragraph:
-
- MF
- 160 m entire band phone, image,
- RTTY, data (1), (2), (3)
-
- HF
- 80 m entire band RTTY, data (3), (9)
- 75 m entire band phone, image (1), (2)
- 40 m 7.000-7.075 MHz RTTY, data (c), (9)
- -do- 7.075-7.100 MHz phone, image (1), (2), (9), (11)
- -do- 7.10-7.15 MHz RTTY, data (1), (9)
- -do- 7.15-7.30 MHz phone, image (1), (2)
- 30 m entire band RTTY, data (3)
- 20 m 14.00-14.15 MHz RTTY, data (3)
- -do- 14.15-14.35 MHz phone, image (1), (2)
- 17 m 18.068-18.110 MHz RTTY, data (3)
- -do- 18.110-18.168 MHz phone, image (1), (2)
- 15 m 21.0-21.2 MHz RTTY, data (3), (9)
- -do- 21.20-21.45 MHz phone, image (1), (2)
- 12 m 24.89-24.93 MHz RTTY, data (3)
- -do- 24.93-24.99 MHz phone, image (1), (2)
- 10 m 28.0-28.3 MHz RTTY, data (4)
- -do- 28.3-29.5 MHz phone, image (1), (2), (10)
- -do- 28.5-29.0 MHz phone, image (1), (2)
- -do- 29.0-29.7 MHz phone, image (1)
-
- VHF
- 6 m 50.1-51.0 MHz MCW, phone, image,
- RTTY, data (2), (5)
- -do- 51.0-54.0 MHz MCW, phone, image,
-
-