Nexus RACE BOX, Инструкция по установке и эксплуатации

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English RaceBox
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USE_NEXUS_DAMP_SCALE_BSP=N
DAMP_LEVEL_BSP=5
5.8 Error Conditions
If the Race Box encounters a condition it can not handle, or is there is an error of some
type with the configuration, it signals this problem by flashing the red error light.
Different flash patterns are used to signal different errors.
Some errors are fatal; the Race Box can not recover from them. Others are temporary
or just a notice, and corrective action can be taken.
Please see Appendix C for a complete list of errors.
6 AVAILABLE DATA FIELDS
This appendix reviews the type of data fields which the Race Box can generate.
The Nexus Race Box is capable of calculating the following data fields and sending
them to the Nexus network:
6.1.1 BIAS – Starting line bias
This field reports the bias, sometimes referred to the “favored end” of the starting line.
Data is reported in plus or minus degrees, such as +3.2 degrees. As such, this field is
best reported on NX2 instruments as CFD and on NXR instruments as one of the ten
custom data lines.
If the number is positive, then the right end of the line is further upwind. A negative
number indicates the left end of the start line is further upwind.
A perfectly square starting line will be 90 degrees relative to true wind. Of course, even
the best race committee often has trouble establishing the perfect line, and even as
they do, slight wind shifts will change the line bias. The number of degrees reports the
number of degrees by which the line is not square. If the BIAS is reported as 5 degrees,
then the angle between the true wind direction and the starting line is 95 degrees. If the
number is -3 degrees, then the angle between true wind direction and the starting line is
87 degrees.
6.1.2 PBS - Polar Boat Speed
Polar Boat Speed is the optimum speed the boat should be traveling given the current
true wind angle (TWA) and true wind speed (TWS).
PBS is typically used on a course other than a windward leeward course or an offshore
race.