User's Guide ______________________________________________________________________
184 _________________________________________________________________ M210667EN-C
Original LT31 messages from 1 to 9 are unchanged. The visibility data of
PWD22 message 7 (one minute and ten minutes averages) is invalidated
by slashes.
The unit identifier given in the PWD22 message 7 is the same as set for
LT31 unit identifier. When the unit identifier for LT31 is removed, the
unit identifier given in the PWD22 message 7 is 0 (zero, ASCII-0x30).
There is no crosscheck for whether the message interval and port settings
are able to offer a bandwidth large enough to transmit all the data (for
example, 300 bps, 15 s, LT31 message 9, METAR-Messaging enabled
does not work).
System Configuration
The SET command is used to set or update system communication and
user interface related parameters.
The CALIBRATE command is used to set or update visibility, window
contamination and temperature measurement calibrations. This command
is available only at the advanced level. For calibration instructions, see
section Calibration on page 232.
The current system parameters can be displayed by using the
PARAMETERS command. Type the following:
0> PARAMETERS
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