Decca zone
A-3
Chain No.
Code
Chain No.
Code
EUROPE
NORTH WEST AUSTRALIA
South Baltic
00
0A
Dampier
36
8E
Vestlandet 01
0E
Port
Hedland
37
4A
Southwest British
02
1B
CANADA
Northumbrian 03
2A
Anticosti
38
9C
Holland 04
2E
Newfoundland
39
2C
North British
05
3B
Cabot Straits
40
6B
Lofoten 06
3E
Nova
Scotia
41
7C
German 07
3F
INDIAN OCEAN
North Baltic
08
4B
Salaya
42
2F
Northwest Spanish
09
4C
SOUTH AFRICA
Trondelag 10
4E
Southwest
Africa
44
9C
English 11
5B
Natal 45
10C
North Bothnian
12
5F
South Spanish
13
6A
North Scottish
14
6C
Gulf of Finland
15
6E
Danish 16
7B
Irish 17
7D
Finnmark 18
7E
French 19
8B
South Bothnian
20
8C
Hebridean 21
8E
Frisian Islands
22
9B
Helgeland 23
9E
Skagerrak 24
10B
PERSIAN GULF
North Persian
25
5C
South Persian
26
1C
INDIAN OCEAN
Bombay 27
7B
Calcutta 28
8B
Bangladesh 29
6C
JAPAN
Hokkaido 30
9C
North Kyushu
32
7C
SOUTH AFRICA
Namaqua 33
4A
Cape 34
6A
Eastern province
35
8A