# WaterLinked DVL A50 integration not working

**URL:** <https://discuss.bluerobotics.com/t/waterlinked-dvl-a50-integration-not-working/11501>\
**Category:** Sonar and Acoustics\
**Tags:** water-linked, dvl\
**Created:** [February 6, 2022, 3:31pm UTC](https://discuss.bluerobotics.com/t/waterlinked-dvl-a50-integration-not-working/11501 "2022-02-06T15:31:39Z")\
**Posts on this page:** 1\
**Showing post:** 2

<div class="post-metadata">

**Author:** ![EliotBR](https://sea1.discourse-cdn.com/flex019/user_avatar/discuss.bluerobotics.com/eliotbr/32/6937_2.png) [@EliotBR](https://discuss.bluerobotics.com/u/EliotBR)\
**Post date:** [February 6, 2022, 9:42pm UTC](https://discuss.bluerobotics.com/t/waterlinked-dvl-a50-integration-not-working/11501/2 "2022-02-06T21:42:50Z")

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> [@yuki](#):
>
> I think causes of that is we cannot Enable odometry support.
> 
> ```auto
> VISO_TYPE 1
> 
> ```
> 
> We search VISO\_TYPE paramter in [QGC\>Parameters](https://docs.qgroundcontrol.com/master/en/SetupView/Parameters.html), but we cannot find it.

Which version of ArduSub are you using? The [DVL integration requires using the “Beta” release (4.1.0)](https://www.ardusub.com/developers/dvl-integration.html#ardusub-firmware) - it won’t work on the “Stable” release (4.0.3).

> [@yuki](#):
>
> Also we cannnot switch GUIDED mode.

I [searched our docs for “Guided Mode”](https://www.ardusub.com/?q=guided%20mode) and the first result is [this page](https://www.ardusub.com/reference/ardusub/tuning-setup-page.html), which has a note that says

> [@ardusub.com - Tuning Setup Page](#):
>
> **Guided** and **Auto** modes are currently unsupported and some features are disabled in QGC.

There’s some further brief commentary on that [here](https://discuss.bluerobotics.com/t/ardusub-guided-mode-status/9404). Regardless, modes that require a position estimate understandably can’t be switched into without active position measurements, so you’ll need to fix the DVL connection/integration issue first.

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