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Chapter 4 Setup Procedure
KGP-922
4-6
0093130022-00
4.2.5 Masking satellite elevation angle
When the satellite is below 5 degrees above the horizon, signal reflection and interference can cause
erroneous positioning. You can improve the positioning accuracy by masking the elevation angle.
However, a large mask value shortens the signal receive time and most satellite combinations are
rejected.
(1) Press key until Menu options 1 to 10 appears.
(2) Press key to select
“
3: GPS
”.
(3) Press key to select
“
5: Elevation mask
”.
(4) Press [ ] or [ ] key to move cursor onto elevation angle masking.
(5) Press key.
Initial setup: 5
°
4.2.6 RAIM
RAIM (Receiver Autonomous Integrity Monitoring) is the function, which supervises whether GPS holds
the accuracy, which the user chose (10m/50m/100m/OFF). And the status is displayed after position fix
is available.
(1) Press key until Menu options 1 to 10 appears.
(2) Press key to select
“
3: GPS
”.
(3) Press key to select
“
6: RAIM Limit
”.
(4) Press [ ] or [ ] key to move cursor onto RAIM limit.
(5) Press key.
Initial setup: 10m
3
5
ENT
MENU
3
ENT
MENU
RAIM limit
RAIM status
Safe
:
When the expected position error is within the RAIM limit.
Caution
: When can not calculate the expected position error.
Unsafe
: When the expected position error exceeds the RAIM limit.
Press
5
Press
6/E
6/E
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