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5. INITIAL SETTINGS
8
5. Press the [NU/CU ENT] key.
6. Press the [MENU ESC] key.
Manual DGPS setup
Enter four digit ID number, frequency and baud rate of station.
1. Press [MENU ESC], [9] and [7] to display the DGPS SETUP menu.
2. Press
S or T to select DGPS MODE and press W to select “INT BEACON”.
3. Press
S or T to select DGPS Station.
4. Press
W to select Man.
5. Enter four digit ID number. You can clear an entry by the [CLEAR] key.
If there is no ID number, press the [NU/CU ENT] key.
6. Press the [NU/CU/ENT] key.
If the number entered is invalid, the buzzer sounds and the message "INVALID ID" appears
on the display for three seconds.
7. Enter frequency in four digits (283.5 kHz to 325.0 kHz).
8. Press the [NU/CU ENT] key. "Baud Rate" appears in reverse video.
9. Press
W or X to select baud rate; 25, 50, 100 or 200bps.
10. Press the [MENU ESC] key.
DGPS Operation checking
1. Press [MENU ESC] and [7].
2. Press [
] several times to display the following.
MENU:Escape
Jan 21 2005 23:59’59" U
:STATION MESSAGE
DGPS INTEGRITY STATUS
ID: 274
NAME:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
Bit Rate: 200 bps
Sig Strength: 83 dB
Health: 0
Freq: 323.0 kHz
SNR: 21 dB
DGPS DATA: Good
BEACON STATION:
Good
D3D 100m
SAFE
Signal to noise ratio
Beacon signal status
Reference station status
DGPS signal strength
This value is between 1and 84.
The higher the value,
the stronger the signal.
If a noise appears at reception band width,
the value becomes bigger.
This value is between 1 to 22. The higher
the value, the better the reception of
beacon signal. When this value is less
than 20, the error is included in the
correction data. In this time, position
fixing is done by using past position data.
When the ship is in the service area of a
beacon station, this value should be 21 or
22. If not, check as follows.
• Check the grounding.
• Check the radar beam interference.
• Check the noise of power generator of
the ship.
Figure 5-2