# Deere Mobile / mRTK RTCM corrections

**URL:** <https://discourse.agopengps.com/t/deere-mobile-mrtk-rtcm-corrections/17034>\
**Category:** Uncategorized\
**Created:** [4 July 2024 19:25 UTC](https://discourse.agopengps.com/t/deere-mobile-mrtk-rtcm-corrections/17034 "2024-07-04T19:25:11Z")\
**Posts on this page:** 17\
**Page:** 2

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**Author:** ![darrenjlobb](https://discourse.agopengps.com/letter_avatar_proxy/v4/letter/d/ecb155/32.png) [@darrenjlobb](https://discourse.agopengps.com/u/darrenjlobb)\
**Post date:** [14 August 2024 20:02 UTC](https://discourse.agopengps.com/t/deere-mobile-mrtk-rtcm-corrections/17034/21 "2024-08-14T20:02:22Z")

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Ah, sorry didnt realise you were so close, in that case would be worth a try…Could you PM me the url etc?

And yes still uisng F9P as base, as used with two tractors using F9P rovers…

Thats intereseting… What a typical issue to happen for no reason, if thats the case than this entire project is largely pointless, as I dont particually want / need RTK on the combine, its just to try and stop the interfearance issue, which this year on some farms has been a nightmare (steering dissconnecting every 10 seconds at times!

Interesting about the antenna thing, what type of antenna are people using? I havent heard about this before…

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**Author:** ![johnharb](https://discourse.agopengps.com/letter_avatar_proxy/v4/letter/j/d78d45/32.png) [@johnharb](https://discourse.agopengps.com/u/johnharb)\
**Post date:** [14 August 2024 20:16 UTC](https://discourse.agopengps.com/t/deere-mobile-mrtk-rtcm-corrections/17034/22 "2024-08-14T20:16:49Z")

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yea no worries

sounds like the exact problem i was experiencing 18 months ago, constant disengaging, oddly it was worse going one way down the field than the other.

I’m trying to find the post, I read about the external antenna. I’m struggling to find it, i will keep looking. sadly i found it after changing it for a 6000, so i never got to try it out. the antenna looked similar to a Trimble Zephyr Model 2. but i guess you could try any antenna you have lying around

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**Author:** ![darrenjlobb](https://discourse.agopengps.com/letter_avatar_proxy/v4/letter/d/ecb155/32.png) [@darrenjlobb](https://discourse.agopengps.com/u/darrenjlobb)\
**Post date:** [14 August 2024 21:02 UTC](https://discourse.agopengps.com/t/deere-mobile-mrtk-rtcm-corrections/17034/23 "2024-08-14T21:02:34Z")

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Thats interesting as I have found the exact same… To be fair 90% of the fields so far this year, not a single problem at all…but a few have been sods… But I have also found going on way most of the time wouldnt dissconnect once, but going the other way would be lucky to go 10 meters, if at all… Absulute nightmare!

I cant picture the antenna connection on the bottom to know what it is, will take another out its shroud to see, ive got two SF300’s as it happens.

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**Author:** ![torriem](https://discourse.agopengps.com/letter_avatar_proxy/v4/letter/t/8dc957/32.png) [@torriem](https://discourse.agopengps.com/u/torriem)\
**Post date:** [14 August 2024 22:28 UTC](https://discourse.agopengps.com/t/deere-mobile-mrtk-rtcm-corrections/17034/24 "2024-08-14T22:28:56Z")

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I guess they do ship a cell module for NTRIP. Radio is pretty easy, though. I use Digi SX modules with a MAX3232 adapter to convert it to RS232 which as I mentioned there’s an internal header that can be used. Everything is tucked inside my receivers with only the antenna poked out the back.

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**Author:** ![brentonholmes1984](https://discourse.agopengps.com/letter_avatar_proxy/v4/letter/b/91b2a8/32.png) [@brentonholmes1984](https://discourse.agopengps.com/u/brentonholmes1984)\
**Post date:** [14 August 2024 22:33 UTC](https://discourse.agopengps.com/t/deere-mobile-mrtk-rtcm-corrections/17034/25 "2024-08-14T22:33:15Z")

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Ok. Was it easy enough for you to do these mods yourself?

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**Author:** ![johnharb](https://discourse.agopengps.com/letter_avatar_proxy/v4/letter/j/d78d45/32.png) [@johnharb](https://discourse.agopengps.com/u/johnharb)\
**Post date:** [15 August 2024 05:53 UTC](https://discourse.agopengps.com/t/deere-mobile-mrtk-rtcm-corrections/17034/26 "2024-08-15T05:53:46Z")

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![Screenshot_20240815_064541_Drive](https://discourse.agopengps.com/uploads/default/original/3X/3/1/31c954578b81bc0fb9c79af5fdc72dfd83a1ceb1.jpeg)

The antenna connection is in the center above the deutsch connector

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**Author:** ![johnharb](https://discourse.agopengps.com/letter_avatar_proxy/v4/letter/j/d78d45/32.png) [@johnharb](https://discourse.agopengps.com/u/johnharb)\
**Post date:** [15 August 2024 07:26 UTC](https://discourse.agopengps.com/t/deere-mobile-mrtk-rtcm-corrections/17034/27 "2024-08-15T07:26:09Z")

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![Screenshot_20240815_082515_Facebook](https://discourse.agopengps.com/uploads/default/original/3X/4/9/492cd82fe8c9f7810509013d3dc5f145d536fb76.jpeg)

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**Author:** ![darrenjlobb](https://discourse.agopengps.com/letter_avatar_proxy/v4/letter/d/ecb155/32.png) [@darrenjlobb](https://discourse.agopengps.com/u/darrenjlobb)\
**Post date:** [15 August 2024 20:36 UTC](https://discourse.agopengps.com/t/deere-mobile-mrtk-rtcm-corrections/17034/28 "2024-08-15T20:36:20Z")

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So sending just RTCM from a radio, into the starfire serial pins gives you an RTK fix no problem? With mobile RTK subscription or not?

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**Author:** ![darrenjlobb](https://discourse.agopengps.com/letter_avatar_proxy/v4/letter/d/ecb155/32.png) [@darrenjlobb](https://discourse.agopengps.com/u/darrenjlobb)\
**Post date:** [15 August 2024 20:37 UTC](https://discourse.agopengps.com/t/deere-mobile-mrtk-rtcm-corrections/17034/29 "2024-08-15T20:37:09Z")

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> [@johnharb](#):
>
> Trimble Zephyr Model 2

Would love to know what that antenna is!

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**Author:** ![johnharb](https://discourse.agopengps.com/letter_avatar_proxy/v4/letter/j/d78d45/32.png) [@johnharb](https://discourse.agopengps.com/u/johnharb)\
**Post date:** [15 August 2024 21:24 UTC](https://discourse.agopengps.com/t/deere-mobile-mrtk-rtcm-corrections/17034/30 "2024-08-15T21:24:03Z")

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> [@johnharb](#):
>
> Trimble Zephyr Model 2

Trimble Zephyr Model 2 is simular to an AG25, found on most trimble systems. Im sure thats what they where using, in the post i read last year.

Im not sure what the one in the photo i pulled from google is. Looks fairly cheap basic one. Im sure any L1 L2 L5 reciver with a good filter should work.

Im using a WiFi NTRIP Master and RS232 converter on a trimble system i have. It would be awsome us it would work with deere aswell. Although £350 for five years licence isnt that bad

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**Author:** ![torriem](https://discourse.agopengps.com/letter_avatar_proxy/v4/letter/t/8dc957/32.png) [@torriem](https://discourse.agopengps.com/u/torriem)\
**Post date:** [16 August 2024 04:16 UTC](https://discourse.agopengps.com/t/deere-mobile-mrtk-rtcm-corrections/17034/31 "2024-08-16T04:16:59Z")

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> [@darrenjlobb](#):
>
> So sending just RTCM from a radio, into the starfire serial pins gives you an RTK fix no problem? With mobile RTK subscription or not?

Sorry no. My comment was in reply to the question about the CRG.receiver.

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**Author:** ![torriem](https://discourse.agopengps.com/letter_avatar_proxy/v4/letter/t/8dc957/32.png) [@torriem](https://discourse.agopengps.com/u/torriem)\
**Post date:** [16 August 2024 04:19 UTC](https://discourse.agopengps.com/t/deere-mobile-mrtk-rtcm-corrections/17034/32 "2024-08-16T04:19:33Z")

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> [@brentonholmes1984](#):
>
> Ok. Was it easy enough for you to do these mods yourself?

Yes not bad. There is a place on the board to solder Gnd, 12V, and RS232 in to (blue wire if I’m not mistaken). I fed 12V into a DC DC converter to power the radio and RS232 adapter with 3.3v. I soldered a DB 9 plug to the one blue wire and plugged that into the TTL to RS232 converter board. 3d printed a little shelf for everything to sit on inside the CRG.

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**Author:** ![Andersonlander](https://discourse.agopengps.com/letter_avatar_proxy/v4/letter/a/3bc359/32.png) [@Andersonlander](https://discourse.agopengps.com/u/Andersonlander)\
**Post date:** [20 March 2025 00:14 UTC](https://discourse.agopengps.com/t/deere-mobile-mrtk-rtcm-corrections/17034/33 "2025-03-20T00:14:07Z")

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How did you connect your base to the custom jdmrtk URL?

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**Author:** ![BGunics](https://discourse.agopengps.com/user_avatar/discourse.agopengps.com/bgunics/32/20565_2.png) [@BGunics](https://discourse.agopengps.com/u/BGunics)\
**Post date:** [20 March 2025 00:16 UTC](https://discourse.agopengps.com/t/deere-mobile-mrtk-rtcm-corrections/17034/34 "2025-03-20T00:16:19Z")

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I purchased jdmrtk.hu domain.  
I have centipede.jdmrtk.hu emlid.jdmrtk.hu etc  
Basically all the bases on those casters are available.

And now centipede also has NEAR

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**Author:** ![Andersonlander](https://discourse.agopengps.com/letter_avatar_proxy/v4/letter/a/3bc359/32.png) [@Andersonlander](https://discourse.agopengps.com/u/Andersonlander)\
**Post date:** [20 March 2025 02:30 UTC](https://discourse.agopengps.com/t/deere-mobile-mrtk-rtcm-corrections/17034/35 "2025-03-20T02:30:29Z")

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I’m running my caster directly through Emlids caster site. Were you able to pick a specific name or are you running a caster through another provider?

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**Author:** ![BGunics](https://discourse.agopengps.com/user_avatar/discourse.agopengps.com/bgunics/32/20565_2.png) [@BGunics](https://discourse.agopengps.com/u/BGunics)\
**Post date:** [22 March 2025 08:01 UTC](https://discourse.agopengps.com/t/deere-mobile-mrtk-rtcm-corrections/17034/36 "2025-03-22T08:01:18Z")

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That’s the reason for registering emlid.jdmrtk.hu alias so you can access your base through emlid but JD thinks it’s their network.

Can’t explain this better

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**Author:** ![charloram](https://discourse.agopengps.com/letter_avatar_proxy/v4/letter/c/a698b9/32.png) [@charloram](https://discourse.agopengps.com/u/charloram)\
**Post date:** [25 March 2025 20:00 UTC](https://discourse.agopengps.com/t/deere-mobile-mrtk-rtcm-corrections/17034/37 "2025-03-25T20:00:23Z")

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How did you registered your own emlid mount point? Emlid caster service already provide mount point, but I cannot change their names.

Edit: I think I find out how. Well see tomorow if it works.

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