View all text of Subpart N [§ 90.401 - § 90.447]
§ 90.431 - Unattended operation.
No person is required to be in attendance at a station when transmitting during normal rendition of service and when either:
(a) Transmitting for telemetering purposes; or,
(b) Retransmitting by self-actuating means a radio signal received from another radio station or stations.