Add a conversion constant requred for DBT sentences.

All regression tests pass.

1 files changed, 1 insertions, 0 deletions

diff --git a/gps.h b/gps.h
index 7b0bd9f4..6baf2322 100644
--- a/gps.h
+++ b/gps.h
@@ -1753,6 +1753,7 @@ extern double wgs84_separation(double, double);
 /* some multipliers for interpreting GPS output */
 #define METERS_TO_FEET	3.2808399	/* Meters to U.S./British feet */
 #define METERS_TO_MILES	0.00062137119	/* Meters to miles */
+#define METERS_TO_FATHOMS	0.54680665	/* Meters to fathoms */
 #define KNOTS_TO_MPH	1.1507794	/* Knots to miles per hour */
 #define KNOTS_TO_KPH	1.852		/* Knots to kilometers per hour */
 #define KNOTS_TO_MPS	0.51444444	/* Knots to meters per second */