SX BLUE GPS iSXblue II+ GNSSTM, User Manual

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SXblue Series User Manual 67
3. Advanced Operations
This chapter introduces the general operational features of the SXblue receiver
and configuration procedures.
3.1 Communicating with the SXblue receiver
The SXblue receiver features three communication ports (except SXblue 12/24
volts) that may be configured independently from each other (Bluetooth, Serial and
USB). The ports may be configured for any mixture of NMEA 0183, binary, and
RTCM SC-104 data. The usual data output is limited to NMEA data messages
since these are industry standard. When sending commands to configure the
SXblue receiver, these ports are referred to as:
•
Port A (Bluetooth)
•
Port B (Serial)
•
Port C (USB)
Note - If you require different data types to be output from the SXblue
receiver simultaneously (such as NMEA and binary or NMEA and RTCM),
ensure that the software used for logging and processing of the data has
been designed to correctly parse the different data types from the single
stream of data. Alternatively, you may also use any two ports to separate
the different data types and set at different output rates.
3.1.1 NMEA 0183 Interface
NMEA 0183 is a communications standard established by the National Marine
Electronics Association (NMEA) and provides data definitions for a variety of
navigation and related equipment. Such instruments supported include
gyrocompasses, Loran receivers, echo sounders, GPS receivers, and more.
NMEA functionality is virtually standard on all GPS equipment available. NMEA
has an ASCII character format that allows you to read the data via terminal
software on the receiving device (if possible). One second of example NMEA data
from the SXblue receiver follows:
$GPGGA,141823.00,4536.79732,N,07333.95861,W,2,09,1.0,49.6,M,-32.4,M,5.4,0313*4E
$GPVTG,151.61,T,,M,0.08,N,0.15,K,D*36
$GPZDA,141823.00,9,7,2004,00,00*63
$GPGSA,M,3,06,08,10,17,18,21,24,26,29,,,,1.7,1.0,1.3*31
$GPGSV,3,1,11,06,40,234,48,08,18,056,42,10,43,066,45,16,00,319,*7F
$GPGSV,3,2,11,17,43,121,45,18,21,264,45,21,39,304,45,24,10,125,45*7E
$GPGSV,3,3,11,26,69,160,48,27,07,031,39,29,73,109,45,,,,*45