FCC 80.909 Revised as of December 4, 2012
Goto Year:2011 |
§ 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 § 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 § 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 § 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]
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