Leica GR30 Online Help Manual page 119

Setting Description
Select the message type and version.
Version
and
message
type
Message type
Leica
Leica 4G
CMR
CMR+
RTCM 2.x
RTCM 2.x (Type
1,2)
RTCM 2.x (Type
2,9)
RTCM 2.x (Type
18,19)
RTCM 2.x (Type
20,21)
RTCM 2.x
(Type 1,2,18,19)
RTCM 2.x
(Type 1,2,20,21)
RTCM 3.x
RTCM 3.x GPS/
GLO compact
RTCM 3.x GPS/
GLO compact &
ephemeris
94
Description
The proprietary Leica real time data format supporting GPS and
GLONASS. This is the best format to use when working exclusively
with Leica Viva rovers or other Leica rover units.
Leica proprietary RT format supporting GPS (including L5), GLONASS
and Galileo. This is the best format to use when working exclusively
with Leica rover units which support all available GNSS signals.
Compacted formats used to broadcast data for third party receivers.
Compacted formats used to broadcast data for third party receivers.
Differential and Delta Differential (Code) GPS corrections. Use for
DGPS applications. An accuracy of 0.5-5m rms can be expected at
the Rover.
Additional messages sent: 3
GPS Partial Correction Set and Delta Differential GPS Corrections.
Use for DGPS applications. An accuracy of 0.5-5m rms can be
expected at the Rover. Use this when a slow data link is being used in
the presence of interference.
Additional messages sent:3
Uncorrected pseudorange and carrier phase measurement. Use for
RTK operations where the ambiguities will be resolved at the
Rover (RTK). An accuracy of around 1-5cm (rms) can be expected
after successful ambiguity resolution.
Additional messages sent: 3, 22, 23, 24
RTK Carrier phase corrections and high-accuracy pseudo-range
corrections. Use for RTK operations. There is negligible difference in
the accuracy obtained using these messages as compared to
messages 18 and 19.
Additional messages sent: 3, 22, 23, 24
Output of both Code corrections and uncorrected carrier phase data.
Additional messages sent: 3, 22, 23, 24
Output of both Code and carrier phase corrections.
Additional messages sent: 3, 22, 23, 24
Reduced bandwidth compared to RTCM v2.x, support of Galileo and
BeiDou.
RTCM standard for correction transmission including message types
1003 & 1011. Higher efficiency than RTCM versions 2.x. Supports real
time services with significantly reduced bandwidth.
Additional messages sent:1006, 1008, 1013, 1033, 1230 (if Glonass is
tracked).
RTCM standard for correction transmission including message types
1003 & 1011, satellite ephemeris GPS data (1019) and GLONASS
ephemeris data (1020).
Additional messages sent:1006, 1008, 1013, 1033, 1230 (if Glonass is
tracked).