196 G12 OEM Board & Sensor Reference Manual
SEQ: Verify RTCM Message Sequence
$PASHS,RTC,SEQ,c1
This command allows you to enable or disable a check on the sequence number
of received RTCM correction messages, where c1 is Y (on) or N (off). When SEQ
is enabled, the remote station must receive two sequential RTCM correction
messages before it starts applying the corrections. This condition is in effect only
at beginning of differential operation, and applies to remote station mode only. You
can see whether message sequence monitoring is enabled or disabled by entering
the $PASHQ,RTC command and checking the SEQ field.
Example
Enter the following command to enable a check of RTCM message sequence:
SEQ Indicates whether the remote station is checking (Y) or not checking (N)
the sequence numbers of the received RTCM correction messages.
When SEQ is enabled, the remote station will not output corrected
positions until is receives two sequential corrections. The default setting
is N. This field applies to remote station mode only
Y, N
TYP The RTCM message types supported by the G12 1, 2, 3, 6, 9, 16
FRQ Indicates the output interval setting for each RTCM message except for
the type 6 message, which is either ON or OFF. Zero (0) indicates the
message is disabled; 99 indicates continuous output. The output
interval unit of measure for message types 1 and 9 is seconds; the
output interval for unit of measure for message types 2, 3, and 16 is
minutes. The default output interval setting is 99 for the type 1
message, OFF for the type 6 message, and 00 for all other RTCM
messages
0 - 99; ON,
OFF
BASE The base station reference position, used to calculate corrections. The
reference position is entered the POS command set commands. If no
position has been entered, this field displays all zeroes. This field
applies to base station mode only
Latitude:
0° - 90°
Longitude:
0° - 180°
MSG This field contains the text entered for the type 16 message. The text in
the type 16 message is entered by the user through the
$PASHS,RTC,MSG command. This field applies to base station mode
only
Up to 90
characters
Table 4.118. RTC Response Format (Continued)
Parameter Description Range
G12RevD.book Page 196 Tuesday, April 2, 2002 4:33 PM
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