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Channel charts | Link-6S User Guide
stations for transmission. All precautions should be taken to avoid
harmful interference to channels AIS 1, AIS 2, 2027* and 2028*. (WRC-
15)
* From 1 January 2019, channel 2027 will be designated ASM 1 and
channel 2028 will be designated ASM 2.
mm) Transmission on these channels is limited to coast stations. If permitted
by administrations and specified by national regulations, these channels
may be used by ship stations for transmission. All precautions should be
taken to avoid harmful interference to channels AIS 1, AIS 2, 2027* and
2028*. (WRC-15)
* From 1 January 2019, channel 2027 will be designated ASM 1 and
channel 2028 will be designated ASM 2.
n) With the exception of AIS, the use of these channels (75 and 76) should
be restricted to navigation-related communications only and all
precautions should be taken to avoid harmful interference to channel
16, by limiting the output power to 1 W. (WRC-12)
o) (SUP - WRC-12)
p) Additionally, AIS 1 and AIS 2 may be used by the mobile-satellite service
(Earth-to-space) for the reception of AIS transmissions from ships. (WRC-
07)
q) When using these channels (10 and 11), all precautions should be taken
to avoid harmful interference to channel 70. (WRC-07)
r) In the maritime mobile service, this frequency is reserved for
experimental use for future applications or systems (e.g. new
AIS applications, man over board systems, etc.). If authorized by
administrations for experimental use, the operation shall not cause
harmful interference to, or claim protection from, stations operating in
the fixed and mobile services. (WRC-12)
s) Channels 75 and 76 are also allocated to the mobile-satellite service
(Earth-to-space) for the reception of long- range AIS broadcast
messages from ships (Message 27; see the most recent version of
Recommendation ITU-R M.1371). (WRC-12)
t) (SUP – WRC-15)
u) SUP – WRC-15)
v) SUP – WRC-15)
w) In Regions 1 and 3:
Until 1 January 2017, the frequency bands 157.200-157.325 MHz
and 161.800-161.925 MHz (corresponding to channels: 24, 84, 25, 85,
26 and 86) may be used for digitally modulated emissions, subject
to coordination with affected administrations. Stations using these
channels or frequency bands for digitally modulated emissions shall not
cause harmful interference to, or claim protection from, other stations
operating in accordance with Article 5.