# RTK with XLR Xbees

**URL:** <https://discourse.agopengps.com/t/rtk-with-xlr-xbees/11539>\
**Category:** RTK Base Setup\
**Created:** [10 February 2023 18:44 UTC](https://discourse.agopengps.com/t/rtk-with-xlr-xbees/11539 "2023-02-10T18:44:58Z")\
**Posts on this page:** 20\
**Page:** 1

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**Author:** ![Hobbyfarmer](https://discourse.agopengps.com/letter_avatar_proxy/v4/letter/h/779978/32.png) [@Hobbyfarmer](https://discourse.agopengps.com/u/Hobbyfarmer)\
**Post date:** [10 February 2023 18:44 UTC](https://discourse.agopengps.com/t/rtk-with-xlr-xbees/11539/1 "2023-02-10T18:44:58Z")

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Hi I am experimenting with RTK on a set of radios paired by Arudsimple I uploaded the updated Konfig files. The F9Ps and xbee’s seem to be talking as the lights quit blinking if I unplug one. My questions are:

-My “Lost RTK” dialog does not disappear. Is this because the radio are talking direct and don’t see the RTK?  
-What is the radio link dialog in AGOpen? Is this just if the radios are not paired previously?

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**Author:** ![m\_elias](https://discourse.agopengps.com/letter_avatar_proxy/v4/letter/m/94ad74/32.png) [@m\_elias](https://discourse.agopengps.com/u/m_elias)\
**Post date:** [10 February 2023 19:29 UTC](https://discourse.agopengps.com/t/rtk-with-xlr-xbees/11539/2 "2023-02-10T19:29:42Z")

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Can you give more details of your setup? Standard F9P with XBees plugged in directly? Which configs did you upload to the F9P?

The Xbee socket is connected to UART2 on the F9P. I suspect your F9P UART2 is set to 460800 but your Xbee’s are set to 115200 (arduSimple default). You can either use u-center to change F9P UART2 to 115200 on both F9Ps (for dual) or set both Xbee’s serial baud to 460800 with X-CTU software.

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**Author:** ![Hobbyfarmer](https://discourse.agopengps.com/letter_avatar_proxy/v4/letter/h/779978/32.png) [@Hobbyfarmer](https://discourse.agopengps.com/u/Hobbyfarmer)\
**Post date:** [10 February 2023 20:09 UTC](https://discourse.agopengps.com/t/rtk-with-xlr-xbees/11539/3 "2023-02-10T20:09:25Z")

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Yes the xbee is plugged direct into the ardusimple.

According to Ucenter UART2 is set to 115200. I used Ortners Konfig base for base and rover config for rover.

Will the “Lost RTK” disappear when it is working?

EDIT: Then Ardusimple is plugged into computer with USB.

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**Author:** ![m\_elias](https://discourse.agopengps.com/letter_avatar_proxy/v4/letter/m/94ad74/32.png) [@m\_elias](https://discourse.agopengps.com/u/m_elias)\
**Post date:** [10 February 2023 20:19 UTC](https://discourse.agopengps.com/t/rtk-with-xlr-xbees/11539/4 "2023-02-10T20:19:56Z")

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Are you using Dual F9Ps?

Enable msg RXM-RTCM on USB, then look at Messages View (F9) → UBX → RXM → RTCM to see if you’re getting the RTCM messages.

You can also enable msg NMEA GxGSV on USB, then you might see more info about your fix, #sats etc.

The Lost RTK should disappear when you have RTK fix. In AoG click the speed or in AgIO there’s The NMEA to click to see what fix you’re getting.

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**Author:** ![Hobbyfarmer](https://discourse.agopengps.com/letter_avatar_proxy/v4/letter/h/779978/32.png) [@Hobbyfarmer](https://discourse.agopengps.com/u/Hobbyfarmer)\
**Post date:** [10 February 2023 20:28 UTC](https://discourse.agopengps.com/t/rtk-with-xlr-xbees/11539/5 "2023-02-10T20:28:44Z")

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No I am not using Dual

Enable MSGs on both base and rover? From Ucenter?

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<div class="post-metadata">

**Author:** ![m\_elias](https://discourse.agopengps.com/letter_avatar_proxy/v4/letter/m/94ad74/32.png) [@m\_elias](https://discourse.agopengps.com/u/m_elias)\
**Post date:** [10 February 2023 20:30 UTC](https://discourse.agopengps.com/t/rtk-with-xlr-xbees/11539/6 "2023-02-10T20:30:01Z")

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Only the rover is supposed to receive those messages, the base is generating them. Yes, in u-center.

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**Author:** ![Hobbyfarmer](https://discourse.agopengps.com/letter_avatar_proxy/v4/letter/h/779978/32.png) [@Hobbyfarmer](https://discourse.agopengps.com/u/Hobbyfarmer)\
**Post date:** [10 February 2023 20:38 UTC](https://discourse.agopengps.com/t/rtk-with-xlr-xbees/11539/7 "2023-02-10T20:38:04Z")

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To enable RXM - RTCM. Is that under ports in U center?

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**Author:** ![Hobbyfarmer](https://discourse.agopengps.com/letter_avatar_proxy/v4/letter/h/779978/32.png) [@Hobbyfarmer](https://discourse.agopengps.com/u/Hobbyfarmer)\
**Post date:** [10 February 2023 20:47 UTC](https://discourse.agopengps.com/t/rtk-with-xlr-xbees/11539/8 "2023-02-10T20:47:41Z")

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Ok found MSG under config 😵

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<div class="post-metadata">

**Author:** ![Hobbyfarmer](https://discourse.agopengps.com/letter_avatar_proxy/v4/letter/h/779978/32.png) [@Hobbyfarmer](https://discourse.agopengps.com/u/Hobbyfarmer)\
**Post date:** [10 February 2023 21:00 UTC](https://discourse.agopengps.com/t/rtk-with-xlr-xbees/11539/9 "2023-02-10T21:00:18Z")

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RTCM3 is blank

 ![image](https://discourse.agopengps.com/uploads/default/original/2X/2/210f37438f7c9ada097e073a70adb47abcbb357f.jpeg)

Look like the right place? Ucenter is like a kid in a shopping mall too many places to go and lots of stuff to damage b4 you know it.

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<div class="post-metadata">

**Author:** ![Hobbyfarmer](https://discourse.agopengps.com/letter_avatar_proxy/v4/letter/h/779978/32.png) [@Hobbyfarmer](https://discourse.agopengps.com/u/Hobbyfarmer)\
**Post date:** [10 February 2023 21:20 UTC](https://discourse.agopengps.com/t/rtk-with-xlr-xbees/11539/10 "2023-02-10T21:20:38Z")

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Do I need a power supply for xbee as well? See red arrow

 ![image](https://discourse.agopengps.com/uploads/default/original/2X/2/2bd78b6237a928c8bd717ef7dc38ae3dd211ed95.jpeg)

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<div class="post-metadata">

**Author:** ![Hobbyfarmer](https://discourse.agopengps.com/letter_avatar_proxy/v4/letter/h/779978/32.png) [@Hobbyfarmer](https://discourse.agopengps.com/u/Hobbyfarmer)\
**Post date:** [10 February 2023 21:37 UTC](https://discourse.agopengps.com/t/rtk-with-xlr-xbees/11539/11 "2023-02-10T21:37:22Z")

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One thing that seems wrong is on the base station the xbee » gps light blinks on the one they configured as base. The rover is xbee \>\> gps.

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<div class="post-metadata">

**Author:** ![m\_elias](https://discourse.agopengps.com/letter_avatar_proxy/v4/letter/m/94ad74/32.png) [@m\_elias](https://discourse.agopengps.com/u/m_elias)\
**Post date:** [10 February 2023 23:02 UTC](https://discourse.agopengps.com/t/rtk-with-xlr-xbees/11539/12 "2023-02-10T23:02:51Z")

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On the base F9P, GPS \>\> Xbee should be blinking and on the rover F9P, Xbee \>\> GPS. No need for additional USB micro connection, that is one option for powering the whole PCB but it connects to the Xbee serial instead of the F9P USB. If your Base F9P is not sending data to the Xbee then of course your Rover won’t be receiving anything either. Maybe try the F9P base/rover config here. And remember to save the F9P’s settings after loading the configs.

> **[GitHub - farmerbriantee/AgOpenGPS\_Boards: Hardware PCB and firmware for...](https://github.com/farmerbriantee/AgOpenGPS_Boards)**
>
> Hardware PCB and firmware for AgOpenGPS Software. Contribute to farmerbriantee/AgOpenGPS\_Boards development by creating an account on GitHub.

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<div class="post-metadata">

**Author:** ![Hobbyfarmer](https://discourse.agopengps.com/letter_avatar_proxy/v4/letter/h/779978/32.png) [@Hobbyfarmer](https://discourse.agopengps.com/u/Hobbyfarmer)\
**Post date:** [11 February 2023 01:16 UTC](https://discourse.agopengps.com/t/rtk-with-xlr-xbees/11539/13 "2023-02-11T01:16:28Z")

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Thanks Matt, I’m getting closer…  
Ucenter is showing RTCM msgs however Agopen still shows no RTK.  
What are the settings in Agopen for Radio RTK?

-base station led flashes GPS\>XBEE, NO RTK is lit and GPS FIX is off.  
-rover led DOUBLE flashes XBEE\>GPS, GPS FIX blinks once with every Xbee msg, NO RTK stays lit.

I have the antennas in the office by a window could that be an issue?

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<div class="post-metadata">

**Author:** ![m\_elias](https://discourse.agopengps.com/letter_avatar_proxy/v4/letter/m/94ad74/32.png) [@m\_elias](https://discourse.agopengps.com/u/m_elias)\
**Post date:** [11 February 2023 02:26 UTC](https://discourse.agopengps.com/t/rtk-with-xlr-xbees/11539/14 "2023-02-11T02:26:04Z")

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Testing indoor can cause difficulty with getting a position fix. What does u-center show with nmea GxGSV msg enabled on USB? Can you get info like this to show?

 ![gps-ublox-f9p-check-version~2](https://discourse.agopengps.com/uploads/default/original/2X/c/ce7ef2876b8bee4feadb97422083d969b686f911.png)

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<div class="post-metadata">

**Author:** ![Hobbyfarmer](https://discourse.agopengps.com/letter_avatar_proxy/v4/letter/h/779978/32.png) [@Hobbyfarmer](https://discourse.agopengps.com/u/Hobbyfarmer)\
**Post date:** [11 February 2023 04:27 UTC](https://discourse.agopengps.com/t/rtk-with-xlr-xbees/11539/15 "2023-02-11T04:27:04Z")

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Yes I get messages there.

Now I switched to NTRIP. Does the right column mean I am receiving corrections? The LOST RTK still doesn’t leave 🫠

 ![image](https://discourse.agopengps.com/uploads/default/original/2X/b/ba38ead1a66ff83c18df3ef3e956cf5ae1882057.jpeg)

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<div class="post-metadata">

**Author:** ![Hobbyfarmer](https://discourse.agopengps.com/letter_avatar_proxy/v4/letter/h/779978/32.png) [@Hobbyfarmer](https://discourse.agopengps.com/u/Hobbyfarmer)\
**Post date:** [11 February 2023 04:32 UTC](https://discourse.agopengps.com/t/rtk-with-xlr-xbees/11539/16 "2023-02-11T04:32:11Z")

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If the radio is mounted direct to the Ardusimple is there no settings needed in Agopen? NTRIP off?

Does the latest version require IMU for RTK or something goofy…

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<div class="post-metadata">

**Author:** ![m\_elias](https://discourse.agopengps.com/letter_avatar_proxy/v4/letter/m/94ad74/32.png) [@m\_elias](https://discourse.agopengps.com/u/m_elias)\
**Post date:** [11 February 2023 05:15 UTC](https://discourse.agopengps.com/t/rtk-with-xlr-xbees/11539/17 "2023-02-11T05:15:06Z")

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You might still not be getting RTK indoors. What’s the fix type in the nmea?

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<div class="post-metadata">

**Author:** ![Hobbyfarmer](https://discourse.agopengps.com/letter_avatar_proxy/v4/letter/h/779978/32.png) [@Hobbyfarmer](https://discourse.agopengps.com/u/Hobbyfarmer)\
**Post date:** [11 February 2023 05:50 UTC](https://discourse.agopengps.com/t/rtk-with-xlr-xbees/11539/18 "2023-02-11T05:50:40Z")

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I’ll check that tomorrow. I was in the middle of the yard when I took that last photo.

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**Author:** ![Hobbyfarmer](https://discourse.agopengps.com/letter_avatar_proxy/v4/letter/h/779978/32.png) [@Hobbyfarmer](https://discourse.agopengps.com/u/Hobbyfarmer)\
**Post date:** [11 February 2023 17:24 UTC](https://discourse.agopengps.com/t/rtk-with-xlr-xbees/11539/19 "2023-02-11T17:24:17Z")

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So for NTRIP over wifi serial needs to be enabled.

 ![image](https://discourse.agopengps.com/uploads/default/original/2X/9/9a1415df71261b43c0a9a7a7f12da1c065cd7df6.jpeg)

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<div class="post-metadata">

**Author:** ![Hobbyfarmer](https://discourse.agopengps.com/letter_avatar_proxy/v4/letter/h/779978/32.png) [@Hobbyfarmer](https://discourse.agopengps.com/u/Hobbyfarmer)\
**Post date:** [11 February 2023 17:25 UTC](https://discourse.agopengps.com/t/rtk-with-xlr-xbees/11539/20 "2023-02-11T17:25:20Z")

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So does anyone know the NTRIP settings for RTK with Xbees attached to the radios?

[Next page](https://discourse.agopengps.com/t/rtk-with-xlr-xbees/11539.md?page=2)