Audiovox NVX430BT User Manual - Page 68

Off-route sensitivity and Recalculation delay, Off-route sensitivity, Recalculation delay

Get Audiovox NVX430BT PDF manuals and user guides View all Audiovox NVX430BT manuals
Add to My Manuals
Save this manual to your list of manuals

Page 68 highlights

5.6.4.1 Off-route sensitivity and Recalculation delay Depending on the quality of your GPS device, the GPS antenna location in the car and the environment you are driving in, route recalculation can behave differently. The NVX430BT Navigator may think you have departed the proposed route and perform a recalculation even if you have not done so. When the GPS reception is poor (e.g. driving in an urban environment with a low sensitivity GPS), occasional wandering (called position fluctuation) of the calculated GPS position is likely. Although The NVX430BT Navigator employs a sophisticated Lock-on-Road system that will mostly suppress these position errors by aligning your position to the recommended route and the road network of the map, sometimes the errors are too large to correct. To reduce the effect of large errors, you can increase the recalculation tolerance two ways. Off-route sensitivity This is a range of relative values from 0 to 10, telling The NVX430BT Navigator how far the GPS position should be from the recommended route before the program decides to recalculate. Lower values make The NVX430BT Navigator insensitive to position errors; higher values will result in quicker reactions. Recalculation delay This is a setting that helps suppress the effects of position fluctuation. With a few seconds delay in recalculation even large position jumps can be survived without a need for route recalculation. 5.6.4.2 U-turn penalty You can fine-tune the way The NVX430BT Navigator takes u-turns into account when planning a route. You can tell The NVX430BT Navigator how much extra distance you would travel to avoid a u-turn. Note: This value is taken into account only if U-turns are enabled in Route parameters (5.4.4.4). 5.6.4.3 Cross-border planning By default The NVX430BT Navigator plans routes using the border crossing points. However, if you live near the border, you can disable border crossing with this switch to remain within one country. 5.6.4.4 Keep position on road (Lock-on-Road) The NVX430BT Navigator is normally used for vehicle navigation, therefore Lock-onRoad will display the position arrow precisely over roads, seamlessly correcting small 68

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
  • 17
  • 18
  • 19
  • 20
  • 21
  • 22
  • 23
  • 24
  • 25
  • 26
  • 27
  • 28
  • 29
  • 30
  • 31
  • 32
  • 33
  • 34
  • 35
  • 36
  • 37
  • 38
  • 39
  • 40
  • 41
  • 42
  • 43
  • 44
  • 45
  • 46
  • 47
  • 48
  • 49
  • 50
  • 51
  • 52
  • 53
  • 54
  • 55
  • 56
  • 57
  • 58
  • 59
  • 60
  • 61
  • 62
  • 63
  • 64
  • 65
  • 66
  • 67
  • 68
  • 69
  • 70
  • 71
  • 72
  • 73
  • 74
  • 75
  • 76
  • 77
  • 78
  • 79
  • 80
  • 81
  • 82
  • 83
  • 84
  • 85
  • 86
  • 87
  • 88
  • 89
5.6.4.1
Off-route sensitivity and Recalculation delay
Depending on the quality of your GPS device, the GPS antenna location in the car
and the environment you are driving in, route recalculation can behave differently.
The NVX430BT Navigator may think you have departed the proposed route and
perform a recalculation even if you have not done so.
When the GPS reception is poor (e.g. driving in an urban environment with a low
sensitivity GPS), occasional wandering (called position fluctuation) of the calculated
GPS position is likely. Although The NVX430BT Navigator employs a sophisticated
Lock-on-Road system that will mostly suppress these position errors by aligning your
position to the recommended route and the road network of the map, sometimes the
errors are too large to correct.
To reduce the effect of large errors, you can increase the recalculation tolerance two
ways.
Off-route sensitivity
This is a range of relative values from 0 to 10, telling The NVX430BT Navigator how
far the GPS position should be from the recommended route before the program
decides to recalculate. Lower values make The NVX430BT Navigator insensitive to
position errors; higher values will result in quicker reactions.
Recalculation delay
This is a setting that helps suppress the effects of position fluctuation. With a few
seconds delay in recalculation even large position jumps can be survived without a
need for route recalculation.
5.6.4.2
U-turn penalty
You can fine-tune the way The NVX430BT Navigator takes u-turns into account
when planning a route. You can tell The NVX430BT Navigator how much extra
distance you would travel to avoid a u-turn.
Note: This value is taken into account only if U-turns are enabled in Route
parameters (5.4.4.4).
5.6.4.3
Cross-border planning
By default The NVX430BT Navigator plans routes using the border crossing points.
However, if you live near the border, you can disable border crossing with this switch
to remain within one country.
5.6.4.4
Keep position on road (Lock-on-Road)
The NVX430BT Navigator is normally used for vehicle navigation, therefore Lock-on-
Road will display the position arrow precisely over roads, seamlessly correcting small
68