Setting Descriptions - Leica GR30 Online Help Manual

like MAX or i-MAX rather than single site corrections to improve the accuracy of the position calculation and
the reliability of detecting movements.
In order to obtain a fixed position, the following options are required:
- GRL114 Site Monitor
- GRL119 Dual Frequency for GR10/25 and GM10
- GRL200 Multi-Frequency for GR30/50 and GM30
Without these options only DGPS positions can be obtained.
Using SBAS for DGPS does not require any option. However, all incoming data streams must be deleted if
SBAS should be used for the position calculation.
For activating an incoming Real time data stream, L2C tracking must be disabled for GPS and GLO.

Setting Descriptions

The table below describes the settings that can be configured on the Configure real time in data stream page.
Setting Description
Select the message type and version.
Version and
message type
Message Type
Leica
Leica 4G
CMR
CMR+
RTCM 2.x (Type
1,2)
RTCM 2.x (Type
2,9)
RTCM 2.x (Type
18,19)
RTCM 2.x (Type
20, 21)
110
Description
Leica proprietary real time data format supporting GPS and
GLONASS. This is the best format to use when working
exclusively with Leica reference station units.
Leica proprietary real time data format supporting GPS
(including L5), GLONASS and Galileo. This is the best
format to use when working exclusively with Leica
reference station units that support all available GNSS
signals.
Compacted format used when receiving correction data
from third part receivers.
Compacted formation used when receiving correction data
from third party receivers.
Differential and Delta Differential (Code) GPS corrections.
Used to achieve a DGPS position.
GPS Partial Correction Set and Delta Differential GPS
Corrections. Used to achieve a DPGS position. Used when
a slow data link is n use or interference is expected.
Uncorrected pseudo range and carrier phase
measurement. Used for achieving an RTK position.
Ambiguities will need to be resolved at the GR/GM
receiver.
RTK Carrier phase corrections and high-accuracy pseudo
range correction. Used for achieving an RTK position,
There is negligible difference in the accuracy obtained
using these messages as compared to message 18 and
19.