dwilliams@gt104:/opt/gpsd$ ./gpspipe -n33 -Pr
{"class":"VERSION","release":"3.20.1~dev","rev":"release-3.20-840-g90d8ce4","proto_major":3,"proto_minor":14}
{"class":"DEVICES","devices":[{"class":"DEVICE","path":"/dev/ttyS6","driver":"NMEA0183","activated":"2020-06-04T16:18:09.269Z","flags":1,"native":0,"bps":115200,"parity":"N","stopbits":1,"cycle":1.00}]}
{"class":"WATCH","enable":true,"json":false,"nmea":true,"raw":0,"scaled":false,"timing":false,"split24":false,"pps":true}
$GPGGA,161809.80,4220.136312,N,07107.662308,W,0,11,1.0,29.526,M,,,1,0061*26
$GPZDA,161809.800,04,06,2020,,*5B
$GPGGA,161809.90,4220.136312,N,07107.662308,W,0,11,1.0,29.526,M,,,1,0061*27
$GPZDA,161809.900,04,06,2020,,*5A
$GPGGA,161810.00,4220.136312,N,07107.662308,W,0,11,1.0,29.526,M,,,1,0061*26
$GPZDA,161810.000,04,06,2020,,*5B
$GPRMC,161810.00,V,4220.136312,N,07107.662308,W,0.005,238.885,040620,,,D*50
$GPGSA,M,3,22,30,11,01,28,17,07,,,,,,2.4,1.0,2.2*30
$GPZDA,161810.000,04,06,2020,,*5B
$GPRMC,161810.00,V,4220.136312,N,07107.662308,W,0.005,238.885,040620,,,D*50
$GPGGA,161810.10,4220.136311,N,07107.662307,W,0,11,1.0,29.526,M,,,2,0061*28
$GPZDA,161810.100,04,06,2020,,*5A
$GPGGA,161810.20,4220.136311,N,07107.662307,W,0,11,1.0,29.526,M,,,2,0061*2B
$GPZDA,161810.200,04,06,2020,,*59
$GPGGA,161810.30,4220.136311,N,07107.662307,W,0,11,1.0,29.526,M,,,2,0061*2A
$GPZDA,161810.300,04,06,2020,,*58
$GPGGA,161810.40,4220.136311,N,07107.662306,W,0,11,1.0,29.520,M,,,1,0061*29
$GPZDA,161810.400,04,06,2020,,*5F
$GPGGA,161810.50,4220.136311,N,07107.662306,W,0,11,1.0,29.520,M,,,1,0061*28
$GPZDA,161810.500,04,06,2020,,*5E
$GPGGA,161810.60,4220.136311,N,07107.662307,W,0,11,1.0,29.522,M,,,1,0061*28
$GPZDA,161810.600,04,06,2020,,*5D
$GPGGA,161810.70,4220.136311,N,07107.662307,W,0,11,1.0,29.522,M,,,1,0061*29
$GPZDA,161810.700,04,06,2020,,*5C
$GPGGA,161810.80,4220.136312,N,07107.662306,W,0,11,1.0,29.520,M,,,1,0061*26
$GPZDA,161810.800,04,06,2020,,*53
$GPGGA,161810.90,4220.136312,N,07107.662306,W,0,11,1.0,29.520,M,,,1,0061*27
$GPZDA,161810.900,04,06,2020,,*52
$GPGGA,161811.00,4220.136312,N,07107.662306,W,0,11,1.0,29.520,M,,,1,0061*2F
$GPZDA,161811.000,04,06,2020,,*5A
dwilliams@gt104:/opt/gpsd$ ./gpspipe -n33 -Pw
{"class":"VERSION","release":"3.20.1~dev","rev":"release-3.20-840-g90d8ce4","proto_major":3,"proto_minor":14}
{"class":"DEVICES","devices":[{"class":"DEVICE","path":"/dev/ttyS6","driver":"NMEA0183","activated":"2020-06-04T16:18:13.069Z","flags":1,"native":0,"bps":115200,"parity":"N","stopbits":1,"cycle":1.00}]}
{"class":"WATCH","enable":true,"json":true,"nmea":false,"raw":0,"scaled":false,"timing":false,"split24":false,"pps":true}
{"class":"TPV","device":"/dev/ttyS6","mode":3,"time":"2020-06-04T16:18:13.600Z","ept":0.005,"lat":42.335605167,"lon":-71.127705117,"altHAE":-1.460,"altMSL":29.510,"alt":29.510,"epv":50.600,"magvar":-14.5,"speed":0.023,"climb":0.030,"epc":1012.00,"geoidSep":-30.970,"eph":19.000,"sep":45.600,"dgpsAge":1.0,"dgpsSta":61}
{"class":"TPV","device":"/dev/ttyS6","mode":3,"time":"2020-06-04T16:18:13.700Z","ept":0.005,"lat":42.335605167,"lon":-71.127705117,"altHAE":-1.460,"altMSL":29.510,"alt":29.510,"epv":50.600,"magvar":-14.5,"speed":0.000,"climb":0.000,"epc":1012.00,"geoidSep":-30.970,"eph":19.000,"sep":45.600,"dgpsAge":1.0,"dgpsSta":61}
{"class":"TPV","device":"/dev/ttyS6","mode":3,"time":"2020-06-04T16:18:13.800Z","ept":0.005,"lat":42.335605167,"lon":-71.127705133,"altHAE":-1.464,"altMSL":29.506,"alt":29.506,"epv":50.600,"magvar":-14.5,"speed":0.014,"climb":-0.040,"epc":1012.00,"geoidSep":-30.970,"eph":19.000,"sep":45.600,"dgpsAge":1.0,"dgpsSta":61}
{"class":"TPV","device":"/dev/ttyS6","mode":3,"time":"2020-06-04T16:18:13.900Z","ept":0.005,"lat":42.335605167,"lon":-71.127705133,"altHAE":-1.464,"altMSL":29.506,"alt":29.506,"epv":50.600,"magvar":-14.5,"speed":0.000,"climb":0.000,"epc":1012.00,"geoidSep":-30.970,"eph":19.000,"sep":45.600,"dgpsAge":1.0,"dgpsSta":61}
{"class":"TPV","device":"/dev/ttyS6","mode":3,"time":"2020-06-04T16:18:14.000Z","ept":0.005,"lat":42.335605167,"lon":-71.127705133,"altHAE":-1.464,"altMSL":29.506,"alt":29.506,"epv":50.600,"magvar":-14.5,"speed":0.000,"climb":0.000,"epc":1012.00,"geoidSep":-30.970,"eph":19.000,"sep":45.600,"dgpsAge":1.0,"dgpsSta":61}
{"class":"TPV","device":"/dev/ttyS6","mode":3,"time":"2020-06-04T16:18:14.100Z","ept":0.005,"lat":42.335605167,"lon":-71.127705083,"altHAE":-1.457,"altMSL":29.513,"alt":29.513,"epv":50.600,"magvar":-14.5,"geoidSep":-30.970,"eph":19.000,"sep":45.600,"dgpsAge":2.0,"dgpsSta":61}
{"class":"TPV","device":"/dev/ttyS6","mode":3,"time":"2020-06-04T16:18:14.200Z","ept":0.005,"lat":42.335605167,"lon":-71.127705083,"altHAE":-1.457,"altMSL":29.513,"alt":29.513,"epv":50.600,"magvar":-14.5,"speed":0.000,"climb":0.000,"epc":1012.00,"geoidSep":-30.970,"eph":19.000,"sep":45.600,"dgpsAge":2.0,"dgpsSta":61}
{"class":"TPV","device":"/dev/ttyS6","mode":3,"time":"2020-06-04T16:18:14.300Z","ept":0.005,"lat":42.335605167,"lon":-71.127705083,"altHAE":-1.457,"altMSL":29.513,"alt":29.513,"epv":50.600,"magvar":-14.5,"speed":0.000,"climb":0.000,"epc":1012.00,"geoidSep":-30.970,"eph":19.000,"sep":45.600,"dgpsAge":2.0,"dgpsSta":61}
{"class":"TPV","device":"/dev/ttyS6","mode":3,"time":"2020-06-04T16:18:14.400Z","ept":0.005,"lat":42.335605167,"lon":-71.127705083,"altHAE":-1.448,"altMSL":29.522,"alt":29.522,"epv":50.600,"magvar":-14.5,"speed":0.000,"climb":0.090,"epc":1012.00,"geoidSep":-30.970,"eph":19.000,"sep":45.600,"dgpsAge":1.0,"dgpsSta":61}
{"class":"TPV","device":"/dev/ttyS6","mode":3,"time":"2020-06-04T16:18:14.500Z","ept":0.005,"lat":42.335605167,"lon":-71.127705083,"altHAE":-1.448,"altMSL":29.522,"alt":29.522,"epv":50.600,"magvar":-14.5,"speed":0.000,"climb":0.000,"epc":1012.00,"geoidSep":-30.970,"eph":19.000,"sep":45.600,"dgpsAge":1.0,"dgpsSta":61}
{"class":"TPV","device":"/dev/ttyS6","mode":3,"time":"2020-06-04T16:18:14.600Z","ept":0.005,"lat":42.335605183,"lon":-71.127705067,"altHAE":-1.443,"altMSL":29.527,"alt":29.527,"epv":50.600,"magvar":-14.5,"speed":0.023,"climb":0.050,"epc":1012.00,"geoidSep":-30.970,"eph":19.000,"sep":45.600,"dgpsAge":1.0,"dgpsSta":61}
{"class":"TPV","device":"/dev/ttyS6","mode":3,"time":"2020-06-04T16:18:14.700Z","ept":0.005,"lat":42.335605183,"lon":-71.127705067,"altHAE":-1.443,"altMSL":29.527,"alt":29.527,"epv":50.600,"magvar":-14.5,"speed":0.000,"climb":0.000,"epc":1012.00,"geoidSep":-30.970,"eph":19.000,"sep":45.600,"dgpsAge":1.0,"dgpsSta":61}
{"class":"TPV","device":"/dev/ttyS6","mode":3,"time":"2020-06-04T16:18:14.800Z","ept":0.005,"lat":42.335605183,"lon":-71.127705100,"altHAE":-1.451,"altMSL":29.519,"alt":29.519,"epv":50.600,"magvar":-14.5,"speed":0.027,"climb":-0.080,"epc":1012.00,"geoidSep":-30.970,"eph":19.000,"sep":45.600,"dgpsAge":1.0,"dgpsSta":61}
{"class":"TPV","device":"/dev/ttyS6","mode":3,"time":"2020-06-04T16:18:14.900Z","ept":0.005,"lat":42.335605183,"lon":-71.127705100,"altHAE":-1.451,"altMSL":29.519,"alt":29.519,"epv":50.600,"magvar":-14.5,"speed":0.000,"climb":0.000,"epc":1012.00,"geoidSep":-30.970,"eph":19.000,"sep":45.600,"dgpsAge":1.0,"dgpsSta":61}
{"class":"TPV","device":"/dev/ttyS6","mode":3,"time":"2020-06-04T16:18:15.000Z","ept":0.005,"lat":42.335605183,"lon":-71.127705100,"altHAE":-1.451,"altMSL":29.519,"alt":29.519,"epv":50.600,"magvar":-14.5,"speed":0.000,"climb":0.000,"epc":1012.00,"geoidSep":-30.970,"eph":19.000,"sep":45.600,"dgpsAge":1.0,"dgpsSta":61}
{"class":"TPV","device":"/dev/ttyS6","mode":3,"time":"2020-06-04T16:18:15.100Z","ept":0.005,"lat":42.335605200,"lon":-71.127705100,"altHAE":-1.454,"altMSL":29.516,"alt":29.516,"epv":50.600,"magvar":-14.5,"geoidSep":-30.970,"eph":19.000,"sep":45.600,"dgpsAge":2.0,"dgpsSta":61}
{"class":"TPV","device":"/dev/ttyS6","mode":3,"time":"2020-06-04T16:18:15.200Z","ept":0.005,"lat":42.335605200,"lon":-71.127705100,"altHAE":-1.454,"altMSL":29.516,"alt":29.516,"epv":50.600,"magvar":-14.5,"speed":0.000,"climb":0.000,"epc":1012.00,"geoidSep":-30.970,"eph":19.000,"sep":45.600,"dgpsAge":2.0,"dgpsSta":61}
{"class":"TPV","device":"/dev/ttyS6","mode":3,"time":"2020-06-04T16:18:15.300Z","ept":0.005,"lat":42.335605200,"lon":-71.127705100,"altHAE":-1.454,"altMSL":29.516,"alt":29.516,"epv":50.600,"magvar":-14.5,"speed":0.000,"climb":0.000,"epc":1012.00,"geoidSep":-30.970,"eph":19.000,"sep":45.600,"dgpsAge":2.0,"dgpsSta":61}
{"class":"TPV","device":"/dev/ttyS6","mode":3,"time":"2020-06-04T16:18:15.400Z","ept":0.005,"lat":42.335605183,"lon":-71.127705117,"altHAE":-1.443,"altMSL":29.527,"alt":29.527,"epv":50.600,"magvar":-14.5,"speed":0.023,"climb":0.110,"epc":1012.00,"geoidSep":-30.970,"eph":19.000,"sep":45.600,"dgpsAge":1.0,"dgpsSta":61}
{"class":"TPV","device":"/dev/ttyS6","mode":3,"time":"2020-06-04T16:18:15.500Z","ept":0.005,"lat":42.335605183,"lon":-71.127705117,"altHAE":-1.443,"altMSL":29.527,"alt":29.527,"epv":50.600,"magvar":-14.5,"speed":0.000,"climb":0.000,"epc":1012.00,"geoidSep":-30.970,"eph":19.000,"sep":45.600,"dgpsAge":1.0,"dgpsSta":61}
{"class":"TPV","device":"/dev/ttyS6","mode":3,"time":"2020-06-04T16:18:15.600Z","ept":0.005,"lat":42.335605150,"lon":-71.127705067,"altHAE":-1.441,"altMSL":29.529,"alt":29.529,"epv":50.600,"magvar":-14.5,"speed":0.055,"climb":0.020,"epc":1012.00,"geoidSep":-30.970,"eph":19.000,"sep":45.600,"dgpsAge":1.0,"dgpsSta":61}
{"class":"TPV","device":"/dev/ttyS6","mode":3,"time":"2020-06-04T16:18:15.700Z","ept":0.005,"lat":42.335605150,"lon":-71.127705067,"altHAE":-1.441,"altMSL":29.529,"alt":29.529,"epv":50.600,"magvar":-14.5,"speed":0.000,"climb":0.000,"epc":1012.00,"geoidSep":-30.970,"eph":19.000,"sep":45.600,"dgpsAge":1.0,"dgpsSta":61}
{"class":"TPV","device":"/dev/ttyS6","mode":3,"time":"2020-06-04T16:18:15.800Z","ept":0.005,"lat":42.335605150,"lon":-71.127705083,"altHAE":-1.443,"altMSL":29.527,"alt":29.527,"epv":50.600,"magvar":-14.5,"speed":0.014,"climb":-0.020,"epc":1012.00,"geoidSep":-30.970,"eph":19.000,"sep":45.600,"dgpsAge":1.0,"dgpsSta":61}
{"class":"TPV","device":"/dev/ttyS6","mode":3,"time":"2020-06-04T16:18:15.900Z","ept":0.005,"lat":42.335605150,"lon":-71.127705083,"altHAE":-1.443,"altMSL":29.527,"alt":29.527,"epv":50.600,"magvar":-14.5,"speed":0.000,"climb":0.000,"epc":1012.00,"geoidSep":-30.970,"eph":19.000,"sep":45.600,"dgpsAge":1.0,"dgpsSta":61}
{"class":"TPV","device":"/dev/ttyS6","mode":3,"time":"2020-06-04T16:18:16.000Z","ept":0.005,"lat":42.335605150,"lon":-71.127705083,"altHAE":-1.443,"altMSL":29.527,"alt":29.527,"epv":50.600,"magvar":-14.5,"speed":0.000,"climb":0.000,"epc":1012.00,"geoidSep":-30.970,"eph":19.000,"sep":45.600,"dgpsAge":1.0,"dgpsSta":61}
{"class":"TPV","device":"/dev/ttyS6","mode":3,"time":"2020-06-04T16:18:16.100Z","ept":0.005,"lat":42.335605150,"lon":-71.127705150,"altHAE":-1.437,"altMSL":29.533,"alt":29.533,"epv":50.600,"magvar":-14.5,"geoidSep":-30.970,"eph":19.000,"sep":45.600,"dgpsAge":2.0,"dgpsSta":61}
{"class":"TPV","device":"/dev/ttyS6","mode":3,"time":"2020-06-04T16:18:16.200Z","ept":0.005,"lat":42.335605150,"lon":-71.127705150,"altHAE":-1.437,"altMSL":29.533,"alt":29.533,"epv":50.600,"magvar":-14.5,"speed":0.000,"climb":0.000,"epc":1012.00,"geoidSep":-30.970,"eph":19.000,"sep":45.600,"dgpsAge":2.0,"dgpsSta":61}
{"class":"TPV","device":"/dev/ttyS6","mode":3,"time":"2020-06-04T16:18:16.300Z","ept":0.005,"lat":42.335605150,"lon":-71.127705150,"altHAE":-1.437,"altMSL":29.533,"alt":29.533,"epv":50.600,"magvar":-14.5,"speed":0.000,"climb":0.000,"epc":1012.00,"geoidSep":-30.970,"eph":19.000,"sep":45.600,"dgpsAge":2.0,"dgpsSta":61}
{"class":"TPV","device":"/dev/ttyS6","mode":3,"time":"2020-06-04T16:18:16.400Z","ept":0.005,"lat":42.335605150,"lon":-71.127705117,"altHAE":-1.436,"altMSL":29.534,"alt":29.534,"epv":50.600,"magvar":-14.5,"speed":0.027,"climb":0.010,"epc":1012.00,"geoidSep":-30.970,"eph":19.000,"sep":45.600,"dgpsAge":2.0,"dgpsSta":61}
{"class":"TPV","device":"/dev/ttyS6","mode":3,"time":"2020-06-04T16:18:16.500Z","ept":0.005,"lat":42.335605150,"lon":-71.127705117,"altHAE":-1.436,"altMSL":29.534,"alt":29.534,"epv":50.600,"magvar":-14.5,"speed":0.000,"climb":0.000,"epc":1012.00,"geoidSep":-30.970,"eph":19.000,"sep":45.600,"dgpsAge":2.0,"dgpsSta":61}