12
E). LLA Navigation lnitialization ID:104 Parameters required to
start using Lat/Lon/Alt
This command is used to initialize the module for a warm start, by providing current position
(in Latitude, Longitude, Altitude coordinates), clock offset, and time. This enables the
receiver to search for the correct satellite signals at the correct signal parameters. Correct
initialization parameters will enable the receiver to acquire signals more quickly, and thus,
will produce a faster navigational soution.
When a valid LLANavigationInitialization command is received,the receiver will restart using
the input parameters as a basis for satellite selection and acquisition.
Format:
$
PSRF104,<Lat>,<Lon>,<Alt>,<ClkOffset>,<TimeOfWeek>,<WeekNo>,<ChannelCount>,
<ResetCfg>*CKSUM<CR><LF>
<Lat> Latitude position, assumed positive north of equator and
negative south of equator float, possibly signed
<Lon> Longitude position, it is assumed positive east of Greenwich
and negative west of Greenwich
Float, possibly signed
<Alt> Altitude position
float, possibly signed
<ClkOffset> Clock Offset of the receiver in Hz, use 0 for last saved value
if available. If this is unavailable, a default value of 75000