GLOBALSAT GB-580 User manual - Manual (Page 37)

GB-580
Page 37
11.4.4 Baro Setting
[MAIN MENU] > [CONFIGURATION] > [ACCESSORIES] > [BARO SETTING]
Before getting training, it is recommended to
calibrate the barometer in order to come out reliable
value of altitude. There are two way to calibrate:
1. Auto Calibration: It is recommended to use.
System will calibrate sensor upon GPS signal
when the signal is reliable. It always calibrate
one times after power on.
2. Manually calibration; you may go on government
weather bureau to get your local Sea Level
Pressure and then put in. System will accord to
the value to come out the current altitude.
11.4.5 Set Compass
[MAIN MENU] > [CONFIGURATION] > [ACCESSORIES] > [SET COMPASS]
z Calibration
Electronics compass can assist GPS and improve the
unreliable problem from stationary. You have to calibrate
before use that. You may follow instruction to calibrate.
z Declination
The practical magnet pole of Earth is ellipsoid, not ideal
circus. You may manual input the declination value or set
as auto calibration. It is recommended as AUTO.
z Follow Bearing
The bearing angle means the included angle between
North and target point. You may perform as a real
compass without GPS to reduce power consumption.