--- /home/jamesb/gpsd/test/nmea2000/logfile_20140914_365495765_can.log.chk	2026-02-27 03:10:28.125954215 -0800
+++ /tmp/tmp.nsHQ596X1w.out1	2026-02-27 04:12:53.140223059 -0800
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 $GPGSA,A,1,,,,,,,,,,,,,,,,*32
 {"class":"TPV","mode":1,"time":"2003-09-18T07:25:43.789Z","ept":0.005}
-{"class":"TPV","mode":0}
-{"class":"ATT","depth":655.350}
 $GPRMC,094532.40,V,,S,,W,0.0000,11.734,130115,-1.2,W*46
 $GPGSA,A,1,,,,,,,,,,,,,,,,*32
 {"class":"TPV","mode":1,"time":"2015-01-13T09:45:32.397Z","ept":0.005}
@@ -10362,8 +9971,6 @@
 $GPRMC,094532.40,V,,S,,W,0.0000,11.734,130115,-1.2,W*46
 $GPGSA,A,1,,,,,,,,,,,,,,,,*32
 {"class":"TPV","mode":1,"time":"2015-01-13T09:45:32.397Z","ept":0.005}
-{"class":"TPV","mode":0}
-{"class":"ATT","depth":655.350}
 $GPRMC,142509.61,V,,S,,W,0.0000,11.734,040937,-1.2,W*49
 $GPGSA,A,1,,,,,,,,,,,,,,,,*32
 {"class":"TPV","mode":1,"time":"2037-09-04T14:25:09.613Z","ept":0.005}