Furuno FAR-1513-BB Operator's Manual page 179

Units of measurement
Abbreviation
deg Degree(s)
H Hour(s)
KM Kilometer(s)
KYD Kiloyard(s)
m Meter(s)
NM Nautical miles
SM Statute mile(s)
Word Abbreviation
ft
km
kn
min
MHz
sec
°
APPENDIX 5 ABBREVIATIONS
Word
Foot/feet
Kilometer(s)
Knot(s)
Minute(s)
Megahertz
Second(s)
Degree(s)
AP-21