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 ## Supported sentences
 
-- [ALK - Seatalk](https://en.wikipedia.org/wiki/Seatalk)
-- [APB - Autopilot Sentence "B"](http://www.catb.org/gpsd/NMEA.html#_apb_autopilot_sentence_b)
+- [ALK - Seatalk](http://www.thomasknauf.de/rap/seatalk2.htm)
+- [APB - Autopilot Sentence "B"](https://gpsd.gitlab.io/gpsd/NMEA.html#_apb_autopilot_sentence_b)
 - [BOD - Bearing Origin to Destination](https://www.tronico.fi/OH6NT/docs/NMEA0183.pdf)
 - [BWC - Bearing & distance - great circle](https://www.tronico.fi/OH6NT/docs/NMEA0183.pdf)
 - [BWR - Bearing & distance - rhumbline](https://www.tronico.fi/OH6NT/docs/NMEA0183.pdf)
 - [BVE - CruzPro Proprietary Sentence (currently only OP30/60 supported)](http://www.cruzpro.com/op60.html)
-- [DBT - Depth Below Transducer](http://www.catb.org/gpsd/NMEA.html#_dbt_depth_below_transducer)
-- [DBS - Depth Below Surface](http://www.catb.org/gpsd/NMEA.html#_dbs_depth_below_surface)
-- [DBK - Depth Below Keel](http://www.catb.org/gpsd/NMEA.html#_dbk_depth_below_keel)
-- [DPT - Depth of Water](http://www.catb.org/gpsd/NMEA.html#_dpt_depth_of_water)
+- [DBT - Depth Below Transducer](https://gpsd.gitlab.io/gpsd/NMEA.html#_dbt_depth_below_transducer)
+- [DBS - Depth Below Surface](https://gpsd.gitlab.io/gpsd/NMEA.html#_dbs_depth_below_surface)
+- [DBK - Depth Below Keel](https://gpsd.gitlab.io/gpsd/NMEA.html#_dbk_depth_below_keel)
+- [DPT - Depth of Water](https://gpsd.gitlab.io/gpsd/NMEA.html#_dpt_depth_of_water)
 - [DSC - Digital Selective Calling Class-D Radios](http://continuouswave.com/whaler/reference/DSC_Datagrams.html)
-- [GGA - Global Positioning System Fix Data](http://www.catb.org/gpsd/NMEA.html#_gga_global_positioning_system_fix_data)
-- [GLL - Geographic Position - Latitude/Longitude](http://www.catb.org/gpsd/NMEA.html#_gll_geographic_position_latitude_longitude)
-- [HDG - Heading - Deviation & Variation](http://www.catb.org/gpsd/NMEA.html#_hdg_heading_deviation_amp_variation)
-- [HDM - Heading - Magnetic](http://www.catb.org/gpsd/NMEA.html#_hdm_heading_magnetic)
-- [HDT - Heading - True](http://www.catb.org/gpsd/NMEA.html#_hdt_heading_true)
+- [GGA - Global Positioning System Fix Data](https://gpsd.gitlab.io/gpsd/NMEA.html#_gga_global_positioning_system_fix_data)
+- [GLL - Geographic Position - Latitude/Longitude](https://gpsd.gitlab.io/gpsd/NMEA.html#_gll_geographic_position_latitude_longitude)
+- [HDG - Heading - Deviation & Variation](https://gpsd.gitlab.io/gpsd/NMEA.html#_hdg_heading_deviation_amp_variation)
+- [HDM - Heading - Magnetic](https://gpsd.gitlab.io/gpsd/NMEA.html#_hdm_heading_magnetic)
+- [HDT - Heading - True](https://gpsd.gitlab.io/gpsd/NMEA.html#_hdt_heading_true)
 - [HSC - Heading Steering Command](https://www.tronico.fi/OH6NT/docs/NMEA0183.pdf)
 - KEP - NKE Performance data
-- [MDA - Meteorological Composite](http://catb.org/gpsd/NMEA.html#_mda_meteorilogical_composite)
-- [MTW - Mean Temperature of Water](http://catb.org/gpsd/NMEA.html#_mtw_mean_temperature_of_water)
-- [MWV - Wind Speed and Angle](http://www.catb.org/gpsd/NMEA.html#_mwv_wind_speed_and_angle)
-- [RMB - Recommended Minimum Navigation Information](http://www.catb.org/gpsd/NMEA.html#_rmb_recommended_minimum_navigation_information)
-- [RMC - Recommended Minimum Navigation Information](http://www.catb.org/gpsd/NMEA.html#_rmc_recommended_minimum_navigation_information)
-- [ROT - Rate of Turn](http://www.catb.org/gpsd/NMEA.html#_rot_rate_of_turn)
-- [RPM - Revolutions](http://www.catb.org/gpsd/NMEA.html#_rpm_revolutions)
+- [MDA - Meteorological Composite](https://gpsd.gitlab.io/gpsd/NMEA.html#_mda_meteorilogical_composite)
+- [MTW - Mean Temperature of Water](https://gpsd.gitlab.io/gpsd/NMEA.html#_mtw_mean_temperature_of_water)
+- [MWV - Wind Speed and Angle](https://gpsd.gitlab.io/gpsd/NMEA.html#_mwv_wind_speed_and_angle)
+- [RMB - Recommended Minimum Navigation Information](https://gpsd.gitlab.io/gpsd/NMEA.html#_rmb_recommended_minimum_navigation_information)
+- [RMC - Recommended Minimum Navigation Information](https://gpsd.gitlab.io/gpsd/NMEA.html#_rmc_recommended_minimum_navigation_information)
+- [ROT - Rate of Turn](https://gpsd.gitlab.io/gpsd/NMEA.html#_rot_rate_of_turn)
+- [RPM - Revolutions](https://gpsd.gitlab.io/gpsd/NMEA.html#_rpm_revolutions)
 - [RSA - Rudder Sensor Angle](https://gpsd.gitlab.io/gpsd/NMEA.html#_rsa_rudder_sensor_angle)
-- [VDM - AIS Other Vessel Data](http://catb.org/gpsd/AIVDM.html)
-- [VDO - AIS Own Vessel Data](http://catb.org/gpsd/AIVDM.html)
-- [VDR - Set and Drift](http://www.catb.org/gpsd/NMEA.html#_vdr_set_and_drift)
-- [VHW - Water Speed and Heading](http://www.catb.org/gpsd/NMEA.html#_vhw_water_speed_and_heading)
-- [VLW - Distance Traveled through Water](http://www.catb.org/gpsd/NMEA.html#_vlw_distance_traveled_through_water)
-- [VPW - Speed - Measured Parallel to Wind](http://www.catb.org/gpsd/NMEA.html#_vpw_speed_measured_parallel_to_wind)
-- [VTG - Track Made Good and Ground Speed](http://www.catb.org/gpsd/NMEA.html#_vtg_track_made_good_and_ground_speed)
-- [VWR - Relative Wind Speed and Angle](http://www.catb.org/gpsd/NMEA.html#_vwr_relative_wind_speed_and_angle)
+- [VDM - AIS Other Vessel Data](https://gpsd.gitlab.io/gpsd/AIVDM.html)
+- [VDO - AIS Own Vessel Data](https://gpsd.gitlab.io/gpsd/AIVDM.html)
+- [VDR - Set and Drift](https://gpsd.gitlab.io/gpsd/NMEA.html#_vdr_set_and_drift)
+- [VHW - Water Speed and Heading](https://gpsd.gitlab.io/gpsd/NMEA.html#_vhw_water_speed_and_heading)
+- [VLW - Distance Traveled through Water](https://gpsd.gitlab.io/gpsd/NMEA.html#_vlw_distance_traveled_through_water)
+- [VPW - Speed - Measured Parallel to Wind](https://gpsd.gitlab.io/gpsd/NMEA.html#_vpw_speed_measured_parallel_to_wind)
+- [VTG - Track Made Good and Ground Speed](https://gpsd.gitlab.io/gpsd/NMEA.html#_vtg_track_made_good_and_ground_speed)
+- [VWR - Relative Wind Speed and Angle](https://gpsd.gitlab.io/gpsd/NMEA.html#_vwr_relative_wind_speed_and_angle)
+- [ZDA - UTC day, month, and year, and local time zone offset](https://gpsd.gitlab.io/gpsd/NMEA.html#_zda_time_amp_date_utc_day_month_year_and_local_time_zone)
 - [XTE - Cross-track Error](https://www.tronico.fi/OH6NT/docs/NMEA0183.pdf)
 - [ZDA - UTC day, month, and year, and local time zone offset](http://www.trimble.com/oem_receiverhelp/v4.44/en/NMEA-0183messages_ZDA.html)