Sec. 80.353  General uses--radiotelegraphy.

    (a) Unless otherwise indicated radiotelegraphy may be used by ship 
and public coast stations only.
    (b) The signal code for Morse telegraphy must be the international 
Morse code signals specified in the Telegraph Regulations annexed to the 
International Telecommunication Convention.
    (c) To facilitate communications, ship stations transmitting by 
means of radiotelegraphy must use the service abbreviations (``Q'' 
signals) listed in Appendix 14 to the ITU Radio Regulations whenever 
practicable.
    (d) In order to reduce interference stations must attempt to select 
calling

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frequencies which provide the most favorable propagational 
characteristics for effecting reliable communications.
    (e) Coast stations may apply to use for telegraphy communications 
any additional coast station frequencies that are allocated for such 
communications in the 10-27500 kHz band that are not listed in this 
part. See the Table of Frequency allocations in Sec. 2.106 of this 
chapter. The use of such frequencies will be authorized initially with a 
six month provisional period.
    (f) Radiotelegraphy stations communicating with a Government station 
may transmit on a Government frequency when authorized to do so by the 
Government station or agency if the emission, bandwidth and frequency 
tolerance of the non-Government station are within the same limits as 
the Government station.