Regulations last checked for updates: May 02, 2025

Title 47 - Telecommunication last revised: Apr 30, 2025
All TitlesTitle 47Chapter IPart 97Subpart D - Subpart D—Technical Standards
View all text of Subpart D [§ 97.301 - § 97.317]
§ 97.305 - Authorized emission types.

(a) Except as specified elsewhere in this part, 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 and no SS modulation emission may be transmitted on any frequency where SS 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 § 97.307(f):

Wavelength band Frequencies Emission types authorized Standards see § 97.307,
paragraph(s):
(1) LF:
(i) 2200 mEntire bandRTTY, data(f)(3).
(ii) 2200 mEntire bandPhone, image(f)(1), (2).
(2) MF:
(i) 630 mEntire bandRTTY, data(f)(3).
(ii) 630 mEntire bandPhone, image(f)(1), (2).
(iii) 160 mEntire bandRTTY, data(f)(3).
(iv) 160 mEntire bandPhone, image(f)(1), (2).
(3) HF:
(i) 80 mEntire bandRTTY, data(f)(3), (9).
(ii) 75 mEntire bandPhone, image(f)(1), (2).
(iii) 60 m5.332, 5.348, 5.3585, 5.373 and 5.405 MHzPhone, RTTY, data(f)(14).
(iv) 40 m7.000-7.100 MHzRTTY, data(f)(3), (9).
(v) 40 m7.075-7.100 MHzPhone, image(f)(1), (2), (9), (11).
(vi) 40 m7.100-7.125 MHzRTTY, data(f)(3), (9).
(vii) 40 m7.125-7.300 MHzPhone, image(f)(1), (2).
(viii) 30 mEntire bandRTTY, data(f)(3).
(ix) 20 m14.00-14.15 MHzRTTY, data(f)(3).
(x) 20 m14.15-14.35 MHzPhone, image(f)(1), (2).
(xi) 17 m18.068-18.110 MHzRTTY, data(f)(3).
(xii) 17 m18.110-18.168 MHzPhone, image(f)(1), (2).
(xiii) 15 m21.0-21.2 MHzRTTY, data(f)(3), (9).
(xiv) 15 m21.20-21.45 MHzPhone, image(f)(1), (2).
(xv) 12 m24.89-24.93 MHzRTTY, data(f)(3).
(xvi) 12 m24.93-24.99 MHzPhone, image(f)(1), (2).
(xvii) 10 m28.0-28.3 MHzRTTY, data(f)(3).
(xviii) 10 m28.3-28.5 MHzPhone, image(f)(1), (2), (10).
(xix) 10 m28.5-29.0 MHzPhone, image(f)(1), (2).
(xx) 10 m29.0-29.7 MHzPhone, image(f)(2).
(4) VHF:
(i) 6 m50.1-51.0 MHzMCW, phone, image, RTTY, data(f)(2), (5).
(ii) 6 m51.0-54.0 MHzMCW, phone, image, RTTY, data, test(f)(2), (5), (8).
(iii) 2 m144.1-148.0 MHzMCW, phone, image, RTTY, data, test(f)(2), (5), (8).
(iv) 1.25 m219-220 MHzData(f)(13).
(v) 1.25m222-225 MHzRTTY, data, test MCW, phone, SS, image(f)(2), (6), (8).
(5) UHF:
(i) 70 cmEntire bandMCW, phone, image, RTTY, data, SS, test(f)(6), (8).
(ii) 33 cmEntire bandMCW, phone, image, RTTY, data, SS, test, pulse(f)(7), (8), and (12).
(iii) 23 cmEntire bandMCW, phone, image, RTTY, data, SS, test(f)(7), (8), and (12).
(iv) 13 cmEntire bandMCW, phone, image, RTTY, data, SS, test, pulse(f)(7), (8), and (12).
(6) SHF:
(i) 5 cmEntire bandMCW, phone, image, RTTY, data, SS, test, pulse(f)(7), (8), and (12).
(ii) 3 cmEntire bandMCW, phone, image, RTTY, data, SS, test(f)(7), (8), and (12).
(iii) 1.2 cmEntire bandMCW, phone, image, RTTY, data, SS, test, pulse(f)(7), (8), and (12).
(7) EHF:
(i) 6 mmEntire bandMCW, phone, image, RTTY, data, SS, test, pulse(f)(7), (8), and (12).
(ii) 4 mmEntire bandMCW, phone, image, RTTY, data, SS, test, pulse(f)(7), (8), and (12).
(iii) 2.5 mmEntire bandMCW, phone, image, RTTY, data, SS, test, pulse(f)(7), (8), and (12).
(iv) 2 mmEntire bandMCW, phone, image, RTTY, data, SS, test, pulse(f)(7), (8), and (12).
(v) 1 mmEntire bandMCW, phone, image, RTTY, data, SS, test, pulse(f)(7), (8), and (12).
(vi) 1 mmAbove 275 GHzMCW, phone, image, RTTY, data, SS, test, pulse(f)(7), (8), and (12).
[54 FR 25857, June 20, 1989; 54 FR 39536, Sept. 27, 1989; 55 FR 22013, May 30, 1990, as amended at 55 FR 30457, July 26, 1990; 60 FR 15688, Mar. 27, 1995; 64 FR 51471, Sept. 23, 1999; 71 FR 66465, Nov. 15, 2006; 75 FR 27204, May 14, 2010; 77 FR 5412, Feb. 3, 2012; 82 FR 27215, June 14, 2017; 85 FR 64069, Oct. 9, 2020; 88 FR 85127, Dec. 7, 2023]
authority: 47 U.S.C. 151-155,301,unless
source: 54 FR 25857, June 20, 1989, unless otherwise noted.
cite as: 47 CFR 97.305
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