# correcting for error

**URL:** <https://community.sparkfun.com/t/correcting-for-error/47612>\
**Category:** Kits\
**Created:** [June 21, 2024, 9:57pm UTC](https://community.sparkfun.com/t/correcting-for-error/47612 "2024-06-21T21:57:47Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![alligatorwest](https://avatars.discourse-cdn.com/v4/letter/a/b5ac83/32.png) [@alligatorwest](https://community.sparkfun.com/u/alligatorwest)\
**Post date:** [June 21, 2024, 9:57pm UTC](https://community.sparkfun.com/t/correcting-for-error/47612/1 "2024-06-21T21:57:47Z")

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I have a sparfun rtk express plus kit. V 3.3

It is operating in rover mode with RTK provided by skylark.

Using Fieldgenius software.

When it achieves RTK fixed status it is off by about 3+ feet.

I have verified this by positioning it over known survey monuments. Is there any way to correct for this or could this be a defective unit?

See attached screen shots showing distance from true location of monuments to where RTK express think they are.

Thanks

David

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**Author:** ![aliarifat794](https://avatars.discourse-cdn.com/v4/letter/a/eb8c5e/32.png) [@aliarifat794](https://community.sparkfun.com/u/aliarifat794)\
**Post date:** [June 22, 2024, 10:26am UTC](https://community.sparkfun.com/t/correcting-for-error/47612/2 "2024-06-22T10:26:45Z")

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Hi, maybe you forgot to attach the screenshots.