Sec. 90.212  Provisions relating to the use of scrambling devices and 
          digital voice modulation.

    (a) Analog scrambling techniques may be employed at any station 
authorized the use of A3E, F3E, or G3E emission, subject to the 
provision of paragraph (d) of this section.
    (b) The use of digital scrambling techniques or digital voice 
modulation requires the specific authorization of F1E or G1E emission, 
and these emissions will only be authorized subject to the provisions of 
paragraph (d) of this section.
    (c) The transmission of any non-voice information or data under the 
authorization of F1E or G1E emission is prohibited. However, stations 
authorized the use of F1E or G1E emission may also be authorized F1D, 
F2D, G1D or

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G2D emission for non-voice communication purposes, pursuant to paragraph 
(k) of Sec. 90.207.
    (d) Station identification shall be transmitted in the unscrambled 
analog mode (clear voice) or Morse code in accordance with the 
provisions of Sec. 90.425. All digital encoding and digital modulation 
shall be disabled during station identification.
[ 43 FR 54791 , Nov. 22, 1978, as amended at  47 FR 15340 , Apr. 9, 1982;  49 FR 48711 , Dec. 14, 1984]