# \#fcal

**URL:** https://discourse.slicer.org/tag/fcal/506.md

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## [PlusToolkit with GE Ultrasound using AppAPI + OpenIGTLink](https://discourse.slicer.org/t/plustoolkit-with-ge-ultrasound-using-appapi-openigtlink/47133)

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**Author:** [@nicxo99](https://discourse.slicer.org/u/nicxo99)\
**Replies:** 0\
**Last updated:** [May 24, 2026, 8:34am UTC](https://discourse.slicer.org/t/plustoolkit-with-ge-ultrasound-using-appapi-openigtlink/47133 "2026-05-24T08:34:32Z")

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Hello! I am trying to connect a GE ultrasound machine to the Plus framework for free-hand calibration (fCal). I am using Slicer to check that the data is valid. I wrote a small program in C++ that sends image data using…

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## [Tracker device error - Data collector configuration](https://discourse.slicer.org/t/tracker-device-error-data-collector-configuration/40034)

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**Author:** [@jonortegav](https://discourse.slicer.org/u/jonortegav)\
**Replies:** 0\
**Last updated:** [November 5, 2024, 10:36am UTC](https://discourse.slicer.org/t/tracker-device-error-data-collector-configuration/40034 "2024-11-05T10:36:58Z")

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Hi everyone, I’m attempting to perform spatial calibration with the PLUS Toolkit, but I keep running into issues, and I’m not entirely sure why. Initially, I suspected that the problem was due to the NDI Polaris Spectr…

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## [BUG and spatial calibration in fCal](https://discourse.slicer.org/t/bug-and-spatial-calibration-in-fcal/39938)

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**Author:** [@jonortegav](https://discourse.slicer.org/u/jonortegav)\
**Replies:** 3\
**Last updated:** [November 5, 2024, 8:34am UTC](https://discourse.slicer.org/t/bug-and-spatial-calibration-in-fcal/39938 "2024-11-05T08:34:38Z")

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Hi, I’m experiencing an issue where fCal unexpectedly closes whenever I attempt to use the Spatial Calibration toolbox. I’m not sure why this is happening, and I haven’t been able to identify any specific error messages…

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## [Temporal Calibration](https://discourse.slicer.org/t/temporal-calibration/37324)

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**Author:** [@J.vd.Zee](https://discourse.slicer.org/u/J.vd.Zee)\
**Replies:** 7\
**Last updated:** [July 16, 2024, 3:05am UTC](https://discourse.slicer.org/t/temporal-calibration/37324 "2024-07-16T03:05:28Z")

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Hello, I defined the temporal calibration, in ms, via the Fcal module. However, if I add the TemporalTimeOffsetSec for the trackerstream, nothing happens. Does someone can assist on this topic? I have a delay in the ima…