MDP-621/641/640 Chapter 10
Operation manual MENU operation
10.6.3 GPS Monitor
Monitors the reception status of the GPS and the beacon receiver.
GPS MONITOR
GPS STATUS : OK
DGPS MODE
: ON
GPS CLOCK : 2003-01-01
00:00:00
Present Position : 36°00.000N
::::
138°30.000E
SHIP SPEED
: 15.0kt
Course
: 340°
CH1 S No. : 02 SN : 15
CH2 S No. : 05 SN : 17
CH3 S No. : 12 SN : 12
CH4 S No. : 20 SN : 13
PECEIVED_SV
: 8
BEACON FREQUENCY : 306.0kHz
BEACON S/N
: 22
0
1
2
NAV Information
GPS Set
GPS Monitor
3
4
Loran C Set
Decca Set
5
6
NMEA Output Data
NMEA Monitor
NAV
Press the RETURN key to return to the MENU screen.
GPS STATUS : If GPS is functioning, displays [OK]. If not functioning displays [BAD].
DGPS MODE : If in DGPS mode, displays [ON]. If not, displays [OFF].
GPS CLOCK : The GPS clock is displayed. 9hrs behind Japanese time.
PRESENT POSITION : The coordinates (lat/lon) of own ship’s present position is displayed.
SHIP SPEED : Own ship’s present speed is displayed.
COURSE : Own ship’s present course is displayed.
CH1〜CH4 : Starting from directly above, the number and the receive SN (Signal to
Noise) ratio of the 4 satellites are displayed. Positioning is deemed OK i
a stable SN ratio of 5 or over is displayed.
RECEIVED SV : The number of satellites the GPS receiver is receiving from is displayed.
Reception status is deemed OK if constantly receiving from 4 or more
satellites.
BEACON FREQUENCY: The beacon receiver frequency is displayed.
BEACON S/N : The beacon receiver signal to noise ratio is displayed. Deemed OK if the
signal to noise ratio is 10 or over.
0093161022-06 10-73
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