Nmea Filtering - JRC JLN-900 Installation And Instruction Manual

6 NMEA filtering

Inputs are filtered according to a filter-file. The table below describes input filtering when
filter-file
NMEAfilterT_rev.txt
can be replaced by any character.
NMEA talkers
LOG 1 MAIN
LOG 1 REDUNDANCY
LOG 2
GYRO (ROT)
ES
ESD
SD4
ALARM MUTE
GPS
GYRO (HDT)
GYRO (ROT+HDT)
OTHER
This table is stored in a filter-file that is specific for the system type chosen in menu S1.
The filter-files also contain NMEA output filtering according to NMEA listeners table below.
There are totally three default filter-files in the Sig. Distributor application:
NMEAfilterT_rev.txt, NMEAfilterR1a_rev.txt
Example: a T-series system will use the file
Note! The filter-files shall never be changed and are only changeable when M13 is changed
and only for development purposes.
The filter-file type in use can be imported / exported to an USB memory stick. Using the menu
M6 CONF TO USB the Sig. Distributor will create a folder on the USB memory stick named
LPU2store_restore
LPU2store_restore
A filter-file can be imported into the Sig. Distributor using menu M5 CONF. FROM USB. The
USB memory stick has to have a folder named
filter-file is placed.
is in use. The question mark "?" is used as a wildcard and
Not filtered messages are starting with:
VD; PSAL
VD; PSALS; PSALD; PSALW
VD; PSAL
??ROT
SDDPT; SDSTN
SD; VDTXT; PSALC
PSALS,0; PSALS,1; PSALS,2; PSALS,3; PSALS,4;
PSALR; PSALC; VDTXT; ??ACK
??ACK; ??HBT; ??ACN
G??
??HDT
??HDT; ??ROT
Not yet implemented
Table 4 NMEA talker list
NMEAfilterT_rev.txt
and export (copy) the filter-file in use from the Sig. Distributor into the
folder on the USB memory stick.
and
NMEAfilterDual_rev.txt
LPU2store_restore
6-37
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on the root where the
.