
Using with Local DGNSS Base Station
When the VBOX 3i is used in conjunction with a local
the positional accuracy can be improved
from the standard 3 m 95 % CEP.
There are two available Base Station options:
40 cm positional accuracy:
If the VBOX 3i is used with a RTCM v2 enabled Base Station then the positional accuracy is increased to 40 cm 95 %
CEP. The height accuracy is improved to 1 m 95 % CEP.
2 cm positional accuracy:
If the VBOX 3i has an RTK upgrade option installed and is used with a RLVBBS4RG or RLVBBS5 then the positional
accuracy is increased to 2 cm.
•
Racelogic
proprietary 2 cm correction (Not compatible with VB3iDR)
•
CMR
2 cm correction (Trimble standard message type)
•
RTCM v3
2 cm correction (RTCM standard message type)
RECOMMENDED
RTCM v3 is recommended as the default RTK 2 cm correction type. This message format is a globally recognised type
and more resilient to data loss caused by radio errors.
Notes:
• RLVB3iR2G2 has a max. log rate of 20 Hz when in RTK mode.
• RLVB3iR10G10 & RLVB3iDR have a max. log rate of 100 Hz when in RTK mode.
• If the VBOX 3i is issued a
(from front panel, software or VBOX Manager) any DGPS settings
will be disabled.
Solution type lookup table
Solution Type
Definition
0
None
1
GNSS only
2
GNSS DGPS (inc RTCMv2 40 cm)
https://en.racelogic.support//Product_Info/VBOX_Data_Loggers/VBOX_3i_Range/VBOX_3i_User_Guide_(All_Variants)/11_-
_VB3i_DGPS_%2F%2F_RTK
51