# wrong meg channel

**URL:** <https://mne.discourse.group/t/wrong-meg-channel/4709>\
**Category:** Support & Discussions\
**Tags:** meg\
**Created:** [April 14, 2022, 9:31am UTC](https://mne.discourse.group/t/wrong-meg-channel/4709 "2022-04-14T09:31:12Z")\
**Posts on this page:** 1\
**Showing post:** 10

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**Author:** ![Janne](https://avatars.discourse-cdn.com/v4/letter/j/f19dbf/32.png) [@Janne](https://mne.discourse.group/u/Janne)\
**Post date:** [April 21, 2022, 7:43am UTC](https://mne.discourse.group/t/wrong-meg-channel/4709/10 "2022-04-21T07:43:31Z")

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Hi Jeff,

Thank you for responding. It is indeed a CTF system.  
Eventually, I changed the channel type to ‘grad’ because I had trouble when computing the adjacency matrix for cluster analysis. I got an error when the channel type was ‘mag’, so I changed the channels to ‘grad’, and then it worked.  
Otherwise, just using them as ‘mag’ in MNE should work fine too.

Thanks again,  
Kind regards,  
Janne

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