47 C.F.R. § 80.927 Antenna radio frequency indicator.
Title 47 - Telecommunication
The transmitter must be equipped with a device which provides visual indication whenever the transmitter is supplying power to the antenna.
Title 47: Telecommunication
PART 80—STATIONS IN THE MARITIME SERVICES
Subpart S—Compulsory Radiotelephone Installations for Small Passenger Boats
§ 80.927 Antenna radio frequency indicator.
