j)
Channel 70 is to be used exclusively for digital selective calling for distress, safety and calling.
k)
Channel 13 is designated for use on a worldwide basis as a navigation safety communication channel,
primarily for intership navigation safety communications. It may also be used for the ship movement and
port operations service subject to the national regulations of the administrations concerned.
l)
These channels (AIS 1 and AIS 2) are used for an automatic identi
fi
cation system (AIS) capable of providing
worldwide operation, unless other frequencies are designated on a regional basis for this purpose. Such
use should be in accordance with the most recent version of Recommendation ITU-R M.1371. (WRC-07)
m)
These channels may be operated as single frequency channels, subject to coordination with a
ff
ected
administrations. The following conditions apply for single frequency usage:
•
The lower frequency portion of these channels may be operated as single frequency channels by
ship and coast stations.
•
Transmission using the upper frequency portion of these channels is limited to coast stations.
•
If permitted by administrations and speci
fi
ed by national regulations, the upper frequency portion
of 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)
¼
Note:
* 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 speci
fi
ed 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)
¼
Note:
* 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 th
e fix
ed 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 a
ff
ected 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.
•
From 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) are identi
fi
ed for the utilization of the VHF
Data Exchange System (VDES) described in the most recent version of Recommendation ITU-R
M.2092. These frequency bands may also be used for analogue modulation described in the most
recent version of Recommendation ITU-R M.1084 by an administration that wishes to do so, subject
to not causing harmful interference to, or claiming protection from other stations in the maritime
72
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RS100 / RS100-B / V100 / V100-B User Manual
