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3.3
DGPS Operation Checking
1. Press the DISPLAY 1 key several times to select the integrity display.
2. Press the cursorpad (
(1)
(2)
(4)
or
) to select the beacon display.
34° 23. 4567' N
134° 23. 4567' E
Internal (Auto)
E Saki
0609/0697
320.5kHz
19
OK
25
0
(1) Station Health
The message "OK" is shown when beacon is working
properly. If the correction data sent from the beacon
reference station has an error, the message "Unmoni-
tored" or "Don't use" is shown.
(2) Signal Quality SN (Signal Noise)
Shows the signal-to-noise ratio of the received beacon
signal. This value is between 0 and 50. The higher the
value the better the signal. The value is normally 25dB.
(3) SS (Signal Strength)
Shows the electric field intensity of the beacon
signal. This value is between 0 and 100. The higher
the value the stronger the signal.
(4) WER (Word Error Rate)
Shows error ratio. This value is between 0% and
100%. 0% indicates the correction data has no error.
Note: When SN (Signal Noise) is less than 7 or WER
(Word Error Rate) shows 100%, check the following:
- Check the grounding.
- Check for radar interference.
- Check for noise from the ship's mains.
00:18 01/Nov/2013
96
3. ADJUSTMENTS
(3)
3-7
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