Virtual base RTK from JAVAD automates for greater ease

July 2, 2018  - By
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JAVAD GNSS has integrated its Justin software suite, including Verify Base-RTK (VB-RTK) with its Triumph-LS Rover receiver, carrying six different RTK engines, and Triumph-1 or Triumph-2 base units, to make GNSS data collection easier yet more reliable.

The combination of the J-Field onboard data collection of the Triumph-LS working with the Justin reduction software establishes the project coordinate system with little effort and good confidence in the user’s field data, the company said.


The Javad Data Processing Online Service (DPOS), built in the Justin software system, works directly with the National Geodetic Survey’s Continuously Operating Reference Station (NGS CORS) system to calculate and establish the project base station within a known coordinate system.

This system can be based upon the National Spatial Reference System (NSRS) or a localized system. Either way, the user can begin data collection immediately using an autonomous base point, with relative corrections being established to the RTK receiver.

Before VB-RTK, an extra step (and time) was required to occupy the base point, collect a sufficient amount of data, and upload to the NGS Online Positioning Service (OPUS) for data calculations and positional determination. VB-RTK now automates this process, increasing efficiency and reducing errors.

Among the main benefits of the software are the vector data check-verification routines and the ability for the user to easily identify random errors (receiver height input, description codes, and so on).

Justin software enables thorough review of preset parameters and templates to help the user establish a consistent workflow pattern.Additionally, the receiver and software system do not rely on a third-party real-time network (RTN).

Besides knowing exactly where the base station is broadcasting from, there are no data charges from the RTN nor cellular fees. By having the base station within the project area, the system will also provide the user with faster fixes and more accurate information.

About the Author:


Tracy Cozzens has served as managing editor of GPS World magazine since 2006, and also is editor of GPS World’s sister website, Geospatial Solutions. She has worked in government, for non-profits, and in corporate communications, editing a variety of publications for audiences ranging from federal government contractors to teachers.

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