§  90.469   Unattended operation.

   (a) Subject to the provisions of § § 90.243, 90.245, and 90.247, mobile
   relay, fixed relay, and mobile repeater stations are authorized for
   unattended operation; and the transmitter control point requirements
   set out at § § 90.463 through 90.465 shall not apply.

   (b) Self-activated transmitters may be authorized for unattended
   operation where they are activated by either electrical or mechanical
   devices, provided the licensee adopts reasonable means to guard against
   malfunctions and harmful interference to other users.

Internal Transmitter Control Systems