Furuno GP-150 Installation Manual page 21

5. Press the NU/CU ENT key.
6. Press the MENU ESC key.
Manual DGPS setup
Enter frequency and baud rate of station.
1. Press MENU ESC, 9 and 7 to display the WAAS/DGPS SETUP menu.
2. Press or to select MODE and press
3. Press or to select Ref. Station.
4. Press to select Man.
5. Press to select Freq.
6. Enter frequency in four digits (283.5 kHz to 325.0 kHz).
7. Press the NU/CU ENT key. "Baud Rate" appears in reverse video.
8. Press or to select baud rate; 25, 50, 100 or 200 bps.
9. Press the MENU ESC key.
DGPS Operation checking
1. Press MENU ESC and 7.
2. Press several times to display the following.
Jan 21 2006 23:59'59" U
DGPS INTEGRITY STATUS
NAME:
_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
ID: 274
Bit Rate: 200 bps
Sig Strength: 83 dB
DGPS DATA:
BEACON STATION:
:STATION MESSAGE
MENU:Escape
Reference station status*
Beacon signal status*
DGPS signal strength
This value is between 1 and 84.
The higher the value, the stronger the signal.
If a noise appears at reception bandwidth,
the value becomes bigger.
to select INT BEACON.
D3D 100m
SAFE
Health: 0
Freq: 323.0 kHz
SNR: 21 dB
Good
Good
*It is necessary that GPS is working properly.
When GPS is malfunctioning though DGPS is normal,
the message "No Good" may be shown.
13
6. INITIAL SETTINGS
Signal to noise ratio
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.