Geoid Conversion

The *.bos file is what you want for Starnet v8,
Unless you have an older version?
I don;t know if Starnet supported OS grid in previous versions.

using version 8.1, and osgm02.bos

"ERROR -- Station **** Outside of Geoid Model Boundary"

The same error as specifying an invalid file.

Project Options> Modelling> Select Specific Geoid File
Only options are *.ght, *.byn, *.bin

I have checked the coordinates are correct numerous times and also tried specifying them as Geodetic Position.

Type of Adjustment : 3D
Project Units : Meters; DMS
Coordinate System : OSGB-GPS-2002

ETRF89 Referenced OSGB (ETRF89OSGB via OSTN02)

Hello,

On your computer you'll have the directory C:ProgramDataMicroSurveyStarNetV8Mapping or very similar, and in there you should have another directory called "UK", which should contain four files. Copy those files up one level to the main Mapping directory and you should be good to go. A grid shift file is required on top of the geoid for that particular coordinate system.

If you don't have those files, you can download them here http://helpdesk.microsurvey.com/index.php?/default_import/Knowledgebase/Article/View/984

Jacob

select "all files" from the file types drop down, the required BOS files are in the Mapping/UK folder

It is working now!
I moved the 4 files as suggested and configured
Select Specific Geoid File: osgm02.bos

incidentally osgm02.bos and osgm02_GB.bos are identical
also ostn02.bos and ostn02_GB.bos differ only by a few initial characters.

I have another geoid file for my collection! 🙂

Thanks for you help

Hi I'm desperate after osgm02.gff can you please send it to me.? I'm trying now for about 30hr to get it and put it into my controller but could find only conversions and files not supported by topcon, and I nearly broke the computer because of topcon link.please help