17. Compass safe distance
Interface NMEA (MODEL 821/841)
Input
Own ship’s position : RMA>RMC>GLL (GLL is available Ver.5 and after.)
Speed : RMA>RMC>VTG>VHW
Heading(True):
HDT>VHW>HDG>VHW>HDM
Heading (Magnetic): HDM>VHW>HDG>VHW>HDM
Course (True):
RMA>RMC>VTG
Course (Magnetic)
VTG>RMA>RMC
Waypoint (L/L, Range, Bearing):
RMB>BWC>BWR
Loran time difference :
RMA>GLC>GTD
Water depth : DPT>DBK, DBS, DBT
Water temperature : MDA>MTW
Time : ZDA
XTE : RMB>XTE>APB
Output
TLL : On using “HM OFF” key.
RSD : A cycle of four seconds
vi
