Novatel GPStation-6, Руководство пользователя

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53 GPStation-6 User Manual Rev 2
Commands
4.2.6 ISMTECCALIBRATION Set TEC calibration value
This command allows the user to set a TEC calibration value for each signal combination. The TEC
calibration value is added onto the measured TEC value before publishing in any of the GISTM mea-
surement logs. Valid entries for the Signal Combination field can be found in
Table 12
. Any double val-
ue can be entered for the calibration value.
Calibration values can be determined using a built-in self-calibration algorithm. The user can initiate a
self-calibration of TEC offsets using the ISMCALIBRATE command. Then the ISMCALIBRATION-
STATUS log can be used to output the results of the calibration.
Once the user has reviewed the results from the self-calibration they can use this command to enter
them into the receiver. Users performing their own TEC calibration can also use this command to enter
in their calibration values. These calibrations can be saved into NVM using the SAVECONFIG com-
mand so the TEC offsets will be used by default at start-up.
Abbreviated ASCII Syntax: Message ID: 1388
ISMTECCALIBRATION signal_combination calibration_value
Input Example:
ismteccalibration gpsl1cal5 -12.24
Table 12: Signal Combination Code
Field Field Type
ASCII
Value Binary
Value
Description
Binary
Format Binary
Bytes
Binary
Offset
1 ISMTECCALIBRATION
Header
- - This field contains the
command name or the
message header depending
on whether the command is
abbreviated ASCII, ASCII or
binary, respectively
- H 0
2 Signal Combination Signal combination to use
for the TEC calibration (refer
to
Table 12, Signal
Combination Code
)
ENUM 4 H
3 TEC Calibration Value Calibration value DOUBLE 8 H+4
Signal
Combination
(Binary)
Signal Combination
(ASCII)
Description
0 GPSL1CAL2Y G GPSL2P(Y)
1 GLOL1CAL2P G GLOL2P
2 GPSL1CAL2C G GPSL2C
3 GPSL1CAL5 G GPSL5
4 SBASL1CAL5 SBAS L1 + SBAS L5
5 GLOL1CAL2CA G GLOL2CA