Setting The Antenna Mode; Weather Information - JRC JLR-7700MKII Instruction Manual

JLR-7700 MK 2 GPS Navigator
4.6.2.3

Setting the Antenna Mode

Position fixing mode Display on the screen
Automatic 3D/
2D selection
2D only mode
Memo
During DGPS position fixing, "AUTO" is used regardless of selection in ANT MODE.
(1) Press the
Note that the equipment is factory set to [2D].
Memo
Entering an accurate antenna height will ensure a more accurate position fixing in the two-dimension (2D)
mode than the other (automatic) in the three-dimension mode if the equipment is used for marine
applications.
4.6.3

Weather Information

Local weather and sea conditions in coastal sea areas of Japan are observed.
Pressing the menu key on the SAT STATUS screen.
Example of NOJIMAZAKI in CHIBA prefecture
NOJIMA 1355 NE 6m 1023hPa NAMI 3 UNERI 1
Observing Time
(Hours,Minutes)
68
AUTO
2D
key provided on the right hand side of the ANT MODE to select a desired mode.
Wind Velocity Atomospheric
(Direction,Speed)
(m / second)
The equipment offers the following two position fixing modes,
which can be selected on an as required basis.
The position fixing mode will be automatically selected either
from the vise versa depending on the GPS satellite
conditions if the equipment is set to the automatic mode.
The equipment will fix the vessel position in the three-
dimension (3D) mode (latitude, longitude, and height) if the
three-dimension position fixing requirements for the DGPS
receiver are satisfied when the signals are received from
four or more satellites.
The equipment will position the vessel in the two-dimension
(2D) mode (latitude and longitude) if the two-dimension
position fixing requirements for the DGPS receiver are
satisfied when the signals are received from three satellites.
Note that the last antenna height measured in the three-
dimension mode will be used for the subsequent position
fixing in the two-dimension mode.
The position fixing will be made only in the based on the
antenna height, which was input on the initial setting screen.
Waves
Pressure (m)
(hPa)
Description
Swells
(m)