Furuno GP-90 - Powering the Device On and Off

1. OPERATION
1-2
1.2 Turning On and Off the
Power
The GP-90 takes about 90 seconds to find
position when turned on for the very first time.
Thereafter it takes about 12 seconds to find
position each time the power is turned on.
Turning on the power
Press the [POWER] key.
The unit tests the PROGRAM MEMORY,
SRAM and battery for proper operation and
shows the results on the display. If equipped
with the internal beacon receiver, "BEACON
RCVR INSTALLED" appears at the bottom of
the display. The unit starts up with the last
used display mode.
PROGRAM MEMORY = OK
SRAM = OK
Internal Battery = OK
--- °
7°
D3D 100m
SAFE
34 ° 23.456· N 135 ° 45.678· E
BRG
RNG
123
12.3
SOG
kt
COG
[01]
30
40
20
50
H
2nm
BEACON RCVR INSTALLED
DATA 3 : DATA OUTPUT
GPS receiving
condition
Several seconds
later
WGS84
nm
Figure 1-2 Appearnace of display when
turning on the power
When turning on the power the following
occurs:
12 seconds after turning on the power,
accurate position (in latitude and longitude)
appears on the display.
If position could not be found, "NO FIX"
appears at the GPS receiving condition
window. When PDOP value exceeds 6 in the
3D mode or HDOP value exceeds 4 in the 2D
mode, "DOP" appears to indicate abnormal
fixing and the position indication could not be
updated.
When the satellite signal is being received
normally, one of the indications shown in
Table 1-1 appears depending on equipment
setting and GPS receiver state.
Table 1-1 GPS receiver indication
Equipment
setting
GPS receiver state
indication
2D 2D (normal)
3D 3D (normal)
Differential 2D D2D (normal)
Differential 3D D3D (normal)
WAAS 2D W2D (normal)
WAAS 3D W2D (normal)
Note 1: When PDOP value exceeds 6 in the
3D mode, the position fixing method
is automatically changed to 2D.
Note 2: The "DEMO" icon appears when the
display is in the demonstration mode.
To return to normal mode, turn off
the power and turn it on while
pressing and holding down the
[NU/CU ENT] key.
Turning the power off
Press the [POWER] key.
The next time you turn on the power the unit
starts up with the last used display mode.