ashtech HDS800, Справочное руководство

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592
Data Output
The data in this message are packed in bits rather than bytes.
So the presented types of fields are just for the sake of giving
a meaningful description of the original data packing.
NOTES:
• Most of the fields found in the DPC and DBEN data
outputs are similar.
• DPC will not be generated if the [K] option (RTK Base) is
missing.
• DPC data are affected by the last $PASHS,UTS command
run. By default, this command is set to “ON”.
• DPC data are affected by the last $PASHS,ANP,OUT
command run.
• DPC data can be made available on several ports
simultaneously.
• DPC data can be output at a rate of up to 20 Hz, but the
throughput compared to RTCM-3, CMR and ATOM may be
quite higher.
• DATAVIEW will not process or plot DPC data.
• DPC pseudo-ranges are smoothed by L1 & L2 carriers.
• L2 data are always L2P(Y) data (RINEX code W). To output
complete DPC data, the receiver must be configured
accordingly (see $PASHS,GPS).
Reminder on How
to Output DPC
Messages
Use the $PASHS,RAW command with the syntax below:
$PASHS,RAW,DPC,<port_ID>,ON,<Rate>
For more details on the $PASHS,RAW command, refer to the
Set Command Library Chapter.
As an example, the command below will output DPC
messages on port A at a rate of 1 second:
$PASHS,RAW,DPC,A,ON,1
Unsigned short 16
Cumulative unsigned short sum of the <packed data>, after <message
length> and before <checksum>
Type*
Size
in bits
Resolution Contents