B&G Network GPSplus - Manual (Page 43)

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GOOD SATELLITE GEOMETRY - LOW HDOP (<12)
BAD SATELLITE GEOMETRY - HIGH HDOP (>12)
SETTING THE HDOP ALARM
1. Press
the POS key.
2. Press
the SETUP key until HDOP ALrM is displayed.
3. Press the ENTER key, the display will flash the current
HDOP alarm limit.
4. Use
the ▼ STEP ▲ knob to alter the limit in the range
0.1 to 12.0. NOTE: The value is factory set to 4.0.
5. Press
the ENTER key to memorise your setting. The
display will now flash the current alarm state.
6. Use
the ▼ STEP ▲ knob to select ON or OFF.
NOTE: The HDOP alarm is factory set to OFF.
7. Press
the ENTER key to memorise your setting.
To change the alarm state without adjusting the limit, miss
out step 4.