Sea-Bird Electronics SBE 45 MicroTSG, User Manual

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Section 3: Setting Up System SBE 45 Interface Box
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NMEA Navigation Device
The Interface Box is designed to decode messages that are output from
navigation devices supporting NMEA 0183 protocol, outputting messages in
GGA, GLL, RMA, RMC, or TRF format. Verify that the navigation device
baud rate matches the baud rate set in the Interface Box with
NMEABaud=
(4800 or 9600).
The most recent decoded Latitude, Longitude, time, and date data is appended
to the end of the SBE 45 data stream in the Interface Box and passed to the
computer for storage and/or display with the SBE 45 data. Position data format
is detailed in
Appendix I: NMEA Data . The Yellow NMEA LED on the
Interface Box flashes each time a NMEA message is received (should be the
same rate at which your navigation device is transmitting).
Example 1 : SBE 45 is set up to output data once every 10 seconds. A navigation device
outputs its NMEA message once every 5 seconds. The Yellow NMEA LED flashes
every 5 seconds. However, only the most recent NMEA message is appended to each
scan of SBE 45 data.
Example 2 : SBE 45 is set up to output data once every 1 second. A navigation device
outputs its NMEA message once every 5 seconds, and the Yellow NMEA LED flashes
every 5 seconds. The same message is appended to each scan of SBE 45 data within
that 5 seconds.
While communicating with the Interface Box, send the
ConnectNMEA
command to view the raw NMEA data.
Note:
Not all NMEA navigation devices
transmit time and / or date.
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