User's Manual

46 |
Channel Charts | Link-6 operator manual
* From 1 January 2019, channel 2027 will be designated ASM 1 and
channel 2028 will be designated ASM 2.
Editorial note: The note numbering below is provisional and will be
aligned during final preparations of the new edition of the Radio
Regulations.
Notes referring to the Table
General notes:
a) Administrations may designate frequencies in the inter-ship, port
operations and ship movement services for use by light aircraft
and helicopters to communicate with ships or participating coast
stations in predominantly maritime support operations under the
conditions specified in Nos. 51.69, 51.73, 51.74, 51.75, 51.76, 51.77
and 51.78. However, the use of the channels which are shared with
public correspondence shall be subject to prior agreement between
interested and affected administrations.
b) The channels of the present Appendix, with the exception of
channels 06, 13, 15, 16, 17, 70, 75 and 76, may also be used for
high-speed data and facsimile transmissions,subject to special
arrangement between interested and affected administrations.
c) The channels of the present Appendix, with the exception of
channels 06, 13, 15, 16, 17, 70, 75 and 76, may be used for direct-
printing telegraphy and data transmission, subject to special
arrangement between interested and affected administrations.
( WR C-12)
d) The frequencies in this table may also be used for radio
communications on inland waterways in accordance with the
conditions specified in No.5.226.
e) Administrations may apply 12.5 kHz channel interleaving on a non-
interference basis to 25 kHz channels, in accordance with the most
recent version of Recommendation ITU-R M.1084,provided:
• implementation of 12.5 kHz channel interleaving and
consequential national requirements shall be subject to
coordination with affected administrations. (WRC-12)