# SparkFun RTK Express Plus Kit

**URL:** <https://community.sparkfun.com/t/sparkfun-rtk-express-plus-kit/45529>\
**Category:** Kits\
**Created:** [May 2, 2023, 8:03pm UTC](https://community.sparkfun.com/t/sparkfun-rtk-express-plus-kit/45529 "2023-05-02T20:03:14Z")\
**Posts on this page:** 5\
**Page:** 1

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**Author:** ![Jeremy\_Crady](https://avatars.discourse-cdn.com/v4/letter/j/a3d4f5/32.png) [@Jeremy\_Crady](https://community.sparkfun.com/u/Jeremy_Crady)\
**Post date:** [May 2, 2023, 8:03pm UTC](https://community.sparkfun.com/t/sparkfun-rtk-express-plus-kit/45529/1 "2023-05-02T20:03:14Z")

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Does this unit measure vertical?

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**Author:** ![TS-Russell](https://yyz1.discourse-cdn.com/sparkfun/user_avatar/community.sparkfun.com/ts-russell/32/6092_2.png) [@TS-Russell](https://community.sparkfun.com/u/TS-Russell)\
**Post date:** [May 2, 2023, 10:24pm UTC](https://community.sparkfun.com/t/sparkfun-rtk-express-plus-kit/45529/2 "2023-05-02T22:24:54Z")

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Sure, ~10mm accuracy with RTK fix - this hookup guide covers the Express and Express Plus [https://learn.sparkfun.com/tutorials/sp … okup-guide](https://learn.sparkfun.com/tutorials/sparkfun-rtk-express-hookup-guide), just note that Plus variant has additional example files that use the IMU

Also see [https://docs.sparkfun.com/SparkFun\_RTK\_Firmware/](https://docs.sparkfun.com/SparkFun_RTK_Firmware/)

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**Author:** ![Jeremy\_Crady](https://avatars.discourse-cdn.com/v4/letter/j/a3d4f5/32.png) [@Jeremy\_Crady](https://community.sparkfun.com/u/Jeremy_Crady)\
**Post date:** [June 1, 2023, 6:22pm UTC](https://community.sparkfun.com/t/sparkfun-rtk-express-plus-kit/45529/3 "2023-06-01T18:22:02Z")

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1. Would like to know if an RTK Express can work as a Base Station for an Express Plus (as Rover).

2. Does the Express allow us to input an exact location and elevation when we put it in base mode? What level of accuracy will that provide?

3. If we don’t have a known point and do a survey in with the base, what level of accuracy could we expect?

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**Author:** ![NORMAP](https://avatars.discourse-cdn.com/v4/letter/n/46a35a/32.png) [@NORMAP](https://community.sparkfun.com/u/NORMAP)\
**Post date:** [August 14, 2023, 5:04pm UTC](https://community.sparkfun.com/t/sparkfun-rtk-express-plus-kit/45529/4 "2023-08-14T17:04:24Z")

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Yes, you get a solid vertical accuracy. If your base is located nearby and not getting distrubed, you can repeat numbers day in and day out. I have been for the past few months and its gorgeous!

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**Author:** ![ruocalgis](https://avatars.discourse-cdn.com/v4/letter/r/3be4f8/32.png) [@ruocalgis](https://community.sparkfun.com/u/ruocalgis)\
**Post date:** [August 31, 2023, 6:54pm UTC](https://community.sparkfun.com/t/sparkfun-rtk-express-plus-kit/45529/5 "2023-08-31T18:54:36Z")

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Can the RTK Express Plus kit be used with QField and implement RTK corrections via Lefebure NTRIP client? Thus far it appears that I cannot connect both my tablet and RTK corrections using bluetooth?