§ 97.309 47 CFR Ch. I (10–1–96 Edition)

Class operator license may only trans- may use any technique whose technical mit a CW emission using the inter- characteristics have been documented national Morse code. publicly, such as CLOVER, –TOR, or (10) A station having a control opera- PacTOR, for the purpose of facilitating tor holding a Novice or Technician communications. Class operator license may only trans- () Where authorized by §§ 97.305() mit a CW emission using the inter- and 97.307() of this part, a station may national Morse code or phone emis- transmit a RTTY or data emission sions J3E and R3E. using an unspecified digital code, ex- (11) Phone and image emissions may cept to a station in a country with be transmitted only by stations located which the United States does not have in ITU Regions 1 and 3, and by stations an agreement permitting the code to be located within ITU Region 2 that are used. RTTY and data emissions using west of 130° West longitude or south of unspecified digital codes must not be 20° North latitude. transmitted for the purpose of obscur- (12) Emission F8E may be transmit- ing the meaning of any communica- ted. tion. When deemed necessary by an EIC (13) A data emission using an unspec- to assure compliance with the FCC ified digital code under the limitations Rules, a station must: listed in § 97.309(b) also may be trans- (1) Cease the transmission using the mitted. The authorized bandwidth is unspecified digital code; 100 kHz. (2) Restrict transmissions of any dig- [54 FR 25857, June 20, 1989; 54 FR 30823, July ital code to the extent instructed; 24, 1989, as amended at 54 FR 39537, Sept. 27, (3) Maintain a record, convertible to 1989; 60 FR 15688, Mar. 27, 1995] the original information, of all digital communications transmitted. § 97.309 RTTY and data emission codes. [54 FR 25857, June 20, 1989, as amended at 54 (a) Where authorized by §§ 97.305(c) FR 39537, Sept. 27, 1989; 56 FR 56172, Nov. 1, 1991; 60 FR 55486, Nov. 1, 1995] and 97.307(f) of the part, an amateur station may transmit a RTTY or data § 97.311 emission types. emission using the following specified digital codes: (a) SS emission transmissions by an (1) The 5-unit, start-stop, Inter- amateur station are authorized only national Telegraph Alphabet No. 2, for communications between points code defined in International Tele- within areas where the amateur service graph and Telephone Consultative is regulated by the FCC. SS emission Committee Recommendation F.1, Divi- transmissions must not be used for the sion C (commonly known as Baudot). purpose of obscuring the meaning of (2) The 7-unit code specified in Inter- any communication. national Radio Consultative Commit- (b) Stations transmitting SS emis- tee Recommendation CCIR 476–2 (1978), sion must not cause harmful inter- 476–3 (1982), 476–4 (1986) or 625 (1986) ference to stations employing other au- (commonly known as AMTOR). thorized emissions, and must accept all (3) The 7-unit code defined in Amer- interference caused by stations em- ican National Standards Institute X3.4– ploying other authorized emissions. 1977 or International Alphabet No. 5 de- For the purposes of this paragraph, un- fined in International Telegraph and intended triggering of carrier operated Telephone Consultative Committee repeaters is not considered to be harm- Recommendation .50 or in Inter- ful interference. national Organization for Standardiza- (c) Only the following types of SS tion, International Standard ISO 646 emission transmissions are authorized (1983), and extensions as provided for in (hybrid SS emissions transmissions in- CCITT Recommendation T.61 (Malaga- volving both spreading techniques are Torremolinos, 1984) (commonly known prohibited): as ASCII). (1) Frequency hopping where the car- (4) An amateur station transmitting rier of the transmitted signal is modu- a RTTY or data emission using a digi- lated with unciphered information and tal code specified in this paragraph changes frequency at fixed intervals

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