Japan Radio Co. JLR-8400, Инструкция по эксплуатации

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4.13.5 Setting Position, Speed, and Course Smoothing

Smoothing can be applied to measured positions, speeds, and courses.

The higher the smoothing value, the smoother the results will be, but the greater time lag.
Conversely, if the smoothing value is set low, a great number of changes will occur, but there will
be little time lag. As such, it is important to choose the optimal value for your own usage situation.

Smoothing values can be set between 0 and 99 seconds.

Smoothing can be set individually for position, speed, and course.
1. Refer to "4.15.1 Changing to a maintenance mode" and display the maintenance menu.
2. Press the key to select "SENSOR" and "SMOOTHING."
(1) When position, speed, and course can be individually set (JLR-4341/4350)
3. Press the key to select "POSITION", "SPEED" or "COURSE", and press the key.
4. Press the key to enter the smoothing value, and press the key.
(2) When position, speed, and course can not be individually set (except JLR-4341/4350)
3. Press the key to enter the smoothing value, and press the key.
4.13.6 Setting RAIM

Receiver autonomous integrity monitoring (RAIM) is an integrity monitoring that determines if GPS
accuracy is within the performance standards to provide an integrity indication.
The integrity indications with a confidence level above 95% for different position accuracy levels
are expressed in two states: "safe" and "unsafe."
In the case of the confidence level under 95%, the indication is expressed "caution."
SAFE: Position error is within the selected accuracy level.
CAUTION: Calculation cannot be performed at the selected accuracy level.
UNSAFE: Position error exceeds the selected accuracy level.

You can set the RAIM accuracy level.

You can select "OFF," "10m," "30m," "50m," or "100m" for accuracy levels.
Set to 30 m or greater when GPS-only positioning is performed.
If GPS-only positioning is performed with a setting of 10 m, then the 95% reliability condition will
not be met, and a "CAUTION" may occur.

If you set accuracy level to "- - -m" is displayed on the screen and the RAIM function will turn off. In
"OFF" status, no calculations as to the integrity status of satellites are made.
1. Refer to "4.15.1 Changing to a maintenance mode" and display the maintenance menu.
2. Press the key to select "SENSOR" and "RAIM ACCURACY."
3. Press the key to select the accuracy level value, and press the key.
Procedure
Procedure

Setting a high smoothing level to position and speed can cause the sensor to react slowly
to fast turns and sudden speed changes. A setting of less than 10 seconds is
recommended for normal circumstances. The default value is 10 seconds. Higher settings
must be used in caution.
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