Hydrographic/ bathymetric survey: Lowrance LMS-525 C DF receiving NMEA 0183 problem (from Leica GPS 1200 RTK)
Hello!
I want to connect Leica RTK GPS (Leica SmartAntenna + Leica RX1250 controller) to LOWRANCE LMS-525 C DF via NMEA 0183. The reason for that is I want to get precise (centimeter level) position of sonar readings. Unfortunately there is some problem and I cannot diagnose it. I sticked to the manual when connecting everything, but without success. In the opposite direction (transmitting position of sonar from standard Lowrance GPS) NMEA 0183 works fine and I can read GGA message on PC (via Parani bluetooth serial adapters and then in Python script).
This is the NMEA GGA message received from Leica GPS:
b’$GPGGA,203748.40,4925.8006561,N,02016.5010872,E,1,05,4.0,653.042,M,,,,*3Crn’And this is the NMEA GGA message received from standard Lowrance GPS:
b’$GPGGA,203557,4925.8007,N,02016.5573,E,1,3,4.41,-41,M,,,,*17rn’So they only differ in position decimal precision. I??ve also tried to transmit this Lowrance GPS NMEA GGA back to the sonar ?? without succes :/
I??ve tried to show everything on the video: https://www.youtube.com/watch?v=eCLPR0g1gC4&feature=youtu.be
Here are also some useful pictures: https://drive.google.com/drive/folders/1SzBnptYiXg3HtKRgPSlmPxXXSCqDRiiO?usp=sharing
Link to Sonar manual found on the internet: https://www.gpscentral.ca/manuals/LMS525CDF-520C_0151-461_120706.pdf
I will be very grateful for any suggestion and help!
Thank you!
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