Appendix B: Maritime channels
CA channels 41
BBBBB
Maritime channels
CA channels
L) 1 W TX power. Channels 15, 17, 20, 65, 66, 75, 76 and 77 are limited to
1 W transmission power.
!) Channels 4A, 6, 19A, 21A, 22A, 61A, 62A, 63A, 67, 72, 73, 81A, 82A and
83A may be legally used in some circumstances but not by the general
public in CA waters.
RX) Only RX: transmission is blocked.
*) Channels 87 and 88 became simplex channels following the
introduction of AIS1 at 161.975 MHz and AIS2 on 162.025 MHz.
These are the default channels. Additional narrowband channels can be
enabled, see Channel setup on page 22.
Channels TX RX SIMPLEX DUPLEX Channels TX RX SIMPLEX DUPLEX Channels RX
1 156,050 160,650 60 156,025 160,625 W1 162,550
2 156,100 160,700 61A 156,075 156,075
3 156,150 160,750 62A 156,125 156,125
4A 156,200 156,200
!) 63A 156,175 156,175 !) W4 162,425
5A 156,250 156,250 64 156,225 160,825 W5 162,450
6 156,300 156,300
!) 64A 156,225 156,225 W6 162,500
7A 156,350 156,350 65A 156,275 156,275 L) W7 162,525
8 156,400 156,400 66A 156,325 156,325
9 156,450 156,450 67 156,375 156,375
10 156,500 156,500 68 156,425 156,425
11 156,550 156,550 69 156,475 156,475
12 156,600 156,600 70 156,525 156,525
13 156,650 156,650 71 156,575 156,575
14 156,700 156,700 72 156,625 156,625
15 156,750 156,750
16 156,800 156,800
Distress and calling 74 156,725 156,725
18A 156,900 156,900 76 156,825 156,825
19A 156,950 156,950
20 157,000 161,600
21A 157,050 157,050
22A 157,100 157,100
!) 81A 157,075 157,075 !)
23 157,150 161,750 82A 157,125 157,125
24 157,200 161,800 83A 157,175 157,175
25 157,250 161,850 83B 161,775
26 157,300 161,900 84 157,225 161,825
27 157,350 161,950 85 157,275 161,875
28 157,400 162,000 86 157,325 161,925
87 157,375 157,375
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