Goto Section: 97.307 | 97.311 | Table of Contents
Revised as of October 1, 2019
Goto Year:2018 |
§ 97.309 RTTY and data emission codes.
(a) Where authorized by § § 97.305(c) and 97.307(f) of the part, an
amateur station may transmit a RTTY or data emission using the
following specified digital codes:
(1) The 5-unit, start-stop, International Telegraph Alphabet No. 2,
code defined in ITU-T Recommendation F.1, Division C (commonly known as
(2) The 7-unit code specified in ITU-R Recommendations M.476-5 and
M.625-3 (commonly known as “AMTOR”).
(3) The 7-unit, International Alphabet No. 5, code defined in IT--T
Recommendation T.50 (commonly known as “ASCII”).
(4) An amateur station transmitting a RTTY or data emission using a
digital code specified in this paragraph may use any technique whose
technical characteristics have been documented publicly, such as
CLOVER, G-TOR, or PacTOR, for the purpose of facilitating
(b) Where authorized by § § 97.305(c) and 97.307(f), a station may
transmit a RTTY or data emission using an unspecified digital code,
except to a station in a country with which the United States does not
have an agreement permitting the code to be used. RTTY and data
emissions using unspecified digital codes must not be transmitted for
the purpose of obscuring the meaning of any communication. When deemed
necessary by a Regional Director to assure compliance with the FCC
Rules, a station must:
(1) Cease the transmission using the unspecified digital code;
(2) Restrict transmissions of any digital code to the extent
(3) Maintain a record, convertible to the original information, of all
digital communications transmitted.
[ 54 FR 25857 , June 20, 1989, as amended at 54 FR 39537 , Sept. 27, 1989;
56 FR 56172 , Nov. 1, 1991; 60 FR 55486 , Nov. 1, 1995; 71 FR 25982 , May
3, 2006; 71 FR 66465 , Nov. 15, 2006; 80 FR 53753 , Sept. 8, 2015]
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Goto Section: 97.307 | 97.311
Goto Year: 2018 |
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