EXAMPLES OF 406 MHz BEACON CODES
Standard Location Protocol with MMSI
(Actual Position--- 43 deg : 43 min : 57 sec North, 00
deg : 57 min : 51 sec East)
(Coarse Position encoded in PDF-1--- 43 deg : 45 min North, 01 deg :
00 min East)
(Position Offset encoded in PDF-2--- minus 01 min : 4 sec latitude,
minus 02 min : 8 sec longitude)
(Rounded off Position Encoded in Beacon--- 43 deg : 43 min : 56 sec
North, 00 deg : 57 min : 52 sec East)
|
Bit Field Name
|
Content Location
|
Bit Field
|
Bits
|
| Message Format |
Long Message |
25 |
1 |
| Protocol Flag |
Location Prot. |
26 |
0 |
| Country Code |
257 Norway |
27-36 |
0100 0000 01 |
| Location Protocol Type |
EPIRB-MMSI (Standard) |
37-40 |
0010 |
Trailing 6 digits of the Ship
Station Identity (in binary form) |
506153 |
41-60 |
0111 1011 1001 0010 1001 |
| Specific EPIRB (in binary form) |
2 |
61- 64 |
0010 |
| Latitude Flag |
N |
65 |
0 |
| Latitude in Degrees |
43 |
66-72 |
0101011 |
| Latitude in 15 Minute Increments: |
45 |
73-74 |
11 |
| Longitude Flag |
E |
75 |
0 |
| Longitude in Degrees |
1 |
76-83 |
0000 0001 |
| Longitude in 15 Minute Increments |
0 |
84-85 |
00 |
| BCH-1 |
21-bit BCH Code |
86-106 |
0101 1111 1110 0010 0000 0 |
| Fixed bits |
|
107-110 |
1101 |
| Position data provided by |
external navig. device |
111 |
0 |
121.5 auxiliary radio
location device |
yes |
112 |
1 |
| Latitude offset sign |
minus |
113 |
0 |
| Latitude offset in min. |
1 |
114-118 |
00001 |
| Latitude offset in 4 second increments |
4 |
119-122 |
0001 |
| Longitude offset sign |
minus |
123 |
0 |
| Longitude offset in min. |
2 |
124-128 |
0001 0 |
| Longitude offset in 4 second increments |
8 |
129-132 |
0010 |
| BCH-2 |
12-bit BCH Code |
133-144 |
0101 0011 0101 |
Beacon 15 Hex ID (bits 26 to 85): 2024F72524FFBFF
406 MSG (Long) (bits 25 to 144): 90127B92922BC022FF103504422535
|