User's Manual

8 Autobase Feature
98 SPSx50 Modular GPS Receiver User Guide
7. The antenna type, antenna height and measurement method used in the
previous setup of this base station are applied.
C
CAUTION – If the antenna height is different to the previous setup, then you must enter
the corrected height for the antenna (using the keypad and display) before starting
measurements. Failure to achieve the correct height position for the antenna results in
errors in heights in subsequent measurements.
8. The receiver begins generating RTK CMR+ corrections.
9. The RTK corrections begin streaming on the radio or port defined in the
application file.
Scenerio Four: Repeat visit to a site with Autobase Warning turned on
The following actions occur when you repeat a base station setup on a point, and the
Autobase Warning is turned on:
1. The receiver is powered on.
2. The receiver begins tracking satellites.
3. The receiver determines the current position.
4. The receiver reviews the base station positions stored in the receiver.
5. The receiver finds a base station position that corresponds to the current
position.
6. Since a base station position is found, the Autobase warning is not displayed.
7. The receiver loads the previous base information.
8. The antenna type, antenna height, and measurement method used in the
previous setup of this base station are applied.
CAUTION – If the antenna height is different to the previous setup, then you must enter
the corrected height for the antennae (using the keypad and display) before starting
measurements. Failure to achieve the correct height position for the antenna results in
errors in heights in subsequent measurements.
9. The receiver begins generating RTK CMR+ corrections.
10. The RTK corrections begin streaming on the radio or port defined in the
previous setup of this base station.
Note – Autobase recalls base station positions that have been stored in the receiver. If the
receiver has been previously set up on a control point but the stored base station position is
not found in the receiver, it is possible that the information may have inadvertently been
deleted. In this case, you should use the display and keypad or the SCS900 system to
manually set up the base station. Make sure that you use the same base latitude, longitude,
and height as in the previous setup. If the same base station latitude, longitude, and height
or a known control point is not used, you will experience position or height errors in all
subsequent measurements.