A–6
Decca Chains
Chain
No.
Chain Chain
code
Location Chain
no.
Chain Chain
code
Location
01 South Baltic 0A Europe 34 Kanto 8C Japan
02 Vestlandet 0E " 35 Shikoku 4C "
03 Southwest British 1B " 36 Hokuriku 2C "
04 Northumbrian 2A " 37 Kita Kyushu 7C "
05 Holland 2E " 38 Namaqualand 4A Southern Africa
06 North British 3B " 39 Cape 6A "
07 Lofoten 3E " 40 Eastern Province 8A "
08 3F " 41 South West Africa 9C "
09 North Baltic 4B " 42 Natal 10C "
10 North West 4C " 43 Dampier 8E Australia
11 Trondelag 4E " 44 Port Headland 4A "
12 English 5B " 45 Anticosti 9C Northern Africa
13 North Bothnian 5F " 46 East Newfoundland 2C "
14 Southern Spanish 6A " 47 Cabot Strait 6B "
15 North Scottish 6C " 48 Nova Scotia 7C "
16 Gulf of Finland 6E "
17 Danish 7B "
18 Irish 7D "
19 Finnmark 7E "
20 French 8B "
21 South Bothnian 8C "
22 Hebridean 8E "
23 Frisian Islands 9B "
24 Helgeland 9E "
25 Skagerrak 10B "
26 North Persian Gulf 5C Persian Gulf & India
27 South Persian Gulf 1C "
28 Bombay 7B "
29 Calcutta 8B "
30 Bangladesh 6C "
31 Saliyah 2F "
32 Hokkaido 9C Japan
33 Tohoku 6C "