SHOUT 3G User Guide Version B
Document Number: 451-93218-002B
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The 10-byte format includes Coordinated Universal Time (UTC) time, latitude, longitude, and
Position (3D) Dilution of Precision (PDOP). With UTC date omitted, the 3G relies on the NOC
server to stamp the date as the report arrives. Encryption is not available with the 10-byte
format. Latitude and longitude are recorded with about 1.1 meters in resolution. The 10-byte
format is selected solely for the purpose of Iridium airtime cost-saving.
The 3G can also send position reports in PECOS Message Structure (PMS). The PMS complies
with the Blue Force Tracking Data Format Specification. The 3G is shipped without PMS features
activated and can only be enabled by NAL Research at the request of an authorized user. For
6.4
L
INK
The
Link
option assigns the network(s) used to transmit reports and messages. Three
options are available—Iridium network only, cellular network only, or both. If both
networks are allowed, another menu appears requiring you to select a primary network. The
SHOUT 3G always uses the primary network to transmit reports and messages. The secondary
network is only used if the primary network is not available. Switching between primary and
secondary networks is managed by the SHOUT 3G automatically. The SHOUT 3G’s default link
setting is both, with the Iridium network as the primary link. Some options are available only on
one network but not the other.
Figure 20: Configure Links
A primary link
must be
selected when
both Iridium
and cellular are
allowed.
