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H GPS Total Station 4800
H.7 Operational Aspects Specific to the GPS Total
Station 4800
The following sections outline the operational aspects specific to the
4800 receiver.
H.7.1 Submeter Accuracy
H.7.2 Real-Time Input
To achieve accuracy with the 4800 receiver of better than 1 meter
(RMS) +2 ppm times the distance between the base station and the
rover, you must use the following GPS rover options configuration
settings in the Asset Surveyor software, as shown in Table H.1.
Table H.1 Recommended settings
Setting Recommended value
Position mode Overdetermined 3D or Manual 3D
PDOP mask 4.0 or less
SNR mask 6 or more
Elevation mask 15 degrees or more
You must also be using a base station which is logging or transmitting
(in RTCM messages) synchronized measurements, and which is
equipped with a Pro XR, Pro XRS, Pro XL, 4600LS, GPS Total
Station 4700, GPS Total Station 4800, Site Surveyor 4400 or Series
4000 GPS receiver. Your roving receivers must be within 200 km of
your base station. Finally, if you are performing differential correction
by postprocessing your data, you must use the Differential Correction
utility from the GPS Pathfinder Office software suite.
The 4800 receiver with TSC1 Asset Surveyor supports the RTCM
version 2.1 and CMR formats for RTK/RTCM input.
302 TSC1 Asset Surveyor Operation Manual