Sec.  97.221   Automatically controlled digital station.

   (a) This rule section does not apply to an auxiliary station, a beacon
   station, a repeater station, an earth station, a space station, or a space
   telecommand station.

   (b) A station may be automatically controlled while transmitting a RTTY or
   data  emission  on  the  6  m  or shorter wavelength bands, and on the
   28.120–28.189 MHz, 24.925–24.930 MHz, 21.090–21.100 MHz, 18.105–18.110 MHz,
   14.0950–14.0995 MHz, 14.1005–14.112 MHz, 10.140–10.150 MHz, 7.100–7.105 MHz,
   or 3.585–3.600 MHz segments.

   (c) A station may be automatically controlled while transmitting a RTTY or
   data emission on any other frequency authorized for such emission types
   provided that:

   (1) The station is responding to interrogation by a station under local or
   remote control; and

   (2) No transmission from the automatically controlled station occupies a
   bandwidth of more than 500 Hz.

   [ 60 FR 26001 , May 16, 1995, as amended at  72 FR 3082 , Jan. 24, 2007]

Subpart D—Technical Standards