Returning large number of Error 1 responses

[wesgood]

Very neat library! I was able to pull depth and temperature data from my transducer and Arduino MEGA but I'm finding that there are many different error outputs for the temperature string. How can I debug or check the full string being sent for the temperature sentence? How does the library determine that a character is out of place?

[wesgood]

I used a repeater code to output Serial1 data to the monitor and this an example of all 3 sentences:

$SDDPT,3.9,*73
$SDDBT,13.1,f,3.9,M,2.1,F*3C
�⸮⸮�⸮59f⸮�⸮6S�V⸮

The depth values (first 2 are correct) but the 3rd is gibberish and I suspect this is what is throwing the library for a loop. Any suggestions for checking the data?