Configuration and Operations
LD900 Installation and Oper ations M anual
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4.6.3 Configuration > GNSS
Within the
GNSS
menu page, changes can be made to the
Elevation Mask
and the
PPS
by clicking on the
corresponding
Edit
options:
4.6.3.1
Configuration > GNSS > Elevation Mask
The
Elevation Mask
defines a value, below which satellites will not be tracked. The system is fixed to only use
satellites above 7° in the active calculation. The default value is set to 0° which VERIPOS have determined to
be the optimal setting.
Press tick to select
Edit
and use the arrow buttons to enter a value between 0° (default) and 89°. Then use the
arrow keys and tick to select
Apply
, right to select
Yes
and tick to apply the change:
4.6.3.2
Configuration > GNSS > PPS
The LD900 allows for the PPS polarity to be configured and set to an increase in pulse from 0v (positive) or a
decrease in pulse to 0v (negative) or turned off. The pulse has a width of 1000 microseconds.
To conf igure PPS click on
Edit
and using the arrow keys select
Off
,
+ Positive
(default) or
- Negative
as
required, followed by tick. Then use the arrow keys and tick to select
Apply
, right to select
Yes
and tick to apply
the change:
