Sat-m – Wavecom W74PC V8.7.0 User Manual
Page 244
234
Transmission Modes
WAVECOM Decoder W74PC, W-PCI/e, W-CODE, W-CLOUD Manual V8.7.0
NAVAREA
NAV
MET
SAR
OCEAN REGION
METAREA
WARNINGS
FORECASTS & WARN-
INGS
ALERTS
FOR SCHEDULED BROAD-
CASTS
I (UK)
X
X
X
AOR-E
II (France)
X
X
X
AOR-E
III (Spain/Greece)
X
X
X
AOR-E
IV (USA)
X
X
X
AOR-W
V (Brazil)
X
X
X
AOR-E
VI (Argentina)
X
X
X
AOR-W
VII (South Africa)
X
X
X
AOR-E + IOR
VIII (India/Mauritius/La Reu-
nion)
X
X (Note 3)
X
IOR
IX (Pakistan)
X
X
X
IOR
X (Australia)
X
X
X
IOR + POR
XI (Japan/China)
X
X
X
IOR + POR
XII (USA)
X
X
X
POR + AOR-W
XIII (Russian Federation)
X
X (Note 4)
POR
XIV (New Zealand)
X
X
X
POR
XV (Chile)
X
X
X
AOR-W
XVI (Peru/USA)
X
X
X
AOR-W
1. X = Full Service now available.
2. IMO has decided that routine broadcasts of navigational warnings and meteorological forecasts will be
made at scheduled times over a single nominated satellite for each NAVAREA/METAREA unscheduled.
Additional information:
See “
” on page 43.
See “
” on page 291.
SAT-M
The SAT-M system carries digital voice and low speed data. The forward direction channels from land
earth stations (LES or CES) to mobile earth stations (SES or MES) are 6 kBaud for NCS and LES TDM and
4 kBaud for LES voice and low speed data.
Parameter
Value
Frequency range
L-Band/C-Band
Operation modes
Inm-M (Forward NCS and LES Msg Chnl)
Forward:
6 kbps DPSK, NCS TDM (LES TDM optional)
8 kbps OQPSK, LES Voice , LES Low Speed Data
Return:
3 kbps DPSK, Slotted Aloha, TDMA,
8 kbps OQPSK SCPC
Required SNR
>15 dB (20 dB recommended)