Introduction
Welcome to the SmartFix Reference station newsletters. The newsletters are designed to better understand the feature and functions of the Real Time SmartFix Reference Station’s. Whether you are already familiar with reference stations or a relative newcomer to reference stations, the aim is that everybody will learn something from reading the news letters.
Real Time Reference Station corrections
No matter who supplies your GNSS equipment you can connect on to the SmartFix network, all that is required in a GNSS receiver capable of receiving an NTRIP (international standard) correction. For information how to connect please email info@globalsurvey.co.nz
Single Base vs Network Solution
Single Base solutions work using the same principles as the traditional Base and Rover concept. However the base is permanent and the connection is by cellular rather than radio. Single Base station corrections have a distance error component of around 1mm per km from the base station. Errors in height and position grow proportionally in relationship with distance from the base.
A Network Solution samples the corrections from a number of base stations and provides an even, consistent, high accuracy performance over the entire network region. There is no distance dependant error when working inside the network. The advantages can be seen from the in results of the test of the Waikato Network below
Welcome to the SmartFix Reference station newsletters. The newsletters are designed to better understand the feature and functions of the Real Time SmartFix Reference Station’s. Whether you are already familiar with reference stations or a relative newcomer to reference stations, the aim is that everybody will learn something from reading the news letters.
Real Time Reference Station corrections
No matter who supplies your GNSS equipment you can connect on to the SmartFix network, all that is required in a GNSS receiver capable of receiving an NTRIP (international standard) correction. For information how to connect please email info@globalsurvey.co.nz
Single Base vs Network Solution
Single Base solutions work using the same principles as the traditional Base and Rover concept. However the base is permanent and the connection is by cellular rather than radio. Single Base station corrections have a distance error component of around 1mm per km from the base station. Errors in height and position grow proportionally in relationship with distance from the base.
A Network Solution samples the corrections from a number of base stations and provides an even, consistent, high accuracy performance over the entire network region. There is no distance dependant error when working inside the network. The advantages can be seen from the in results of the test of the Waikato Network below
Recent testing of the Waikato Network Solution reported the following errors.
The nearest Base to the solution = 51km. The WORST reported spread in results where as follows, N = 0.028m, E = 0.018m, Ht = 0.043m.
With the typical spread being N= 0.015m, E = 0.015m, Ht = 0.035m.
Relative accuracy test = mean was 0.02m for position and 0.03m for ht (between known marks)
In a single Base Station solution 50Kms from the base errors would be at least in the order of 0.07m for position and 0.14m for ht.
