Sec.  80.909   Radiotelephone transmitter.

   (a) The medium frequency transmitter must have a peak envelope output power
   of at least 60 watts for J3E emission on 2182 kHz and at least one
   ship-to-shore working frequency within the band 1605 to 2850 kHz enabling
   communication with a public coast station if the region in which the vessel
   is navigated is served by a public coast station operating in this band.

   (b) The single sideband radiotelephone must be capable of operating on
   maritime frequencies in the band 1710 to 27500 kHz with a peak envelope
   output power of at least 120 watts for J3E emission on 2182 kHz and J3E
   emission on the distress and safety frequencies listed in  Sec. 80.369(b).

   (c) The transmitter complies with the power output requirements specified in
   paragraphs (a) or (b) of this section when:

   (1) The transmitter can be adjusted for efficient use with an actual ship
   station transmitting antenna meeting the requirements of  Sec. 80.923 of this
   part; and

   (2) The transmitter, with normal operating voltages applied, has been
   demonstrated to deliver its required output power on the frequencies
   specified in paragraphs (a) or (b) of this section into either an artificial
   antenna consisting of a series network of 10 ohms effective resistance and
   200 picofarads capacitance or an artificial antenna of 50 ohms nominal
   impedance. An individual demonstration of power output capability of the
   transmitter, with the radiotelephone installation normally installed on
   board ship, may be required.

   (d) The single sideband radiotelephone must be capable of transmitting
   clearly perceptible signals from ship to shore. The transmitter complies
   with this requirement if it is capable of enabling communication with a
   public coast station on working frequencies in the 4000 to 27500 kHz band
   specified in  Sec. 80.371(b) of this part under normal daytime operating
   conditions.

   [ 56 FR 19302 , Apr. 26, 1991, as amended at  57 FR 34262 , Aug. 4, 1992;  68 FR 46974 , Aug. 7, 2003]