[Code of Federal Regulations]

[Title 47, Volume 5]

[Revised as of October 1, 2005]

From the U.S. Government Printing Office via GPO Access

[CITE: 47CFR97.309]



[Page 594-595]

 

                       TITLE 47--TELECOMMUNICATION

 

                         COMMISSION (CONTINUED)

 

PART 97_AMATEUR RADIO SERVICE--Table of Contents

 

                      Subpart D_Technical Standards

 

Sec. 97.309  RTTY and data emission codes.



    (a) Where authorized by Sec. Sec. 97.305(c) and 97.307(f) of the 

part, an amateur station may transmit a RTTY or data



[[Page 595]]



emission using the following specified digital codes:

    (1) The 5-unit, start-stop, International Telegraph Alphabet No. 2, 

code defined in International Telegraph and Telephone Consultative 

Committee Recommendation F.1, Division C (commonly known as Baudot).

    (2) The 7-unit code specified in International Radio Consultative 

Committee Recommendation CCIR 476-2 (1978), 476-3 (1982), 476-4 (1986) 

or 625 (1986) (commonly known as AMTOR).

    (3) The 7-unit code defined in American National Standards Institute 

X3.4-1977 or International Alphabet No. 5 defined in International 

Telegraph and Telephone Consultative Committee Recommendation T.50 or in 

International Organization for Standardization, International Standard 

ISO 646 (1983), and extensions as provided for in CCITT Recommendation 

T.61 (Malaga-Torremolinos, 1984) (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 communications.

    (b) Where authorized by Sec. Sec. 97.305(c) and 97.307(f) of this 

part, 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 an EIC 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 

instructed;

    (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]