DIY RTK networks to mainstream receiver/displays

Hi all, Ive seen a few discussions on here about using DIY RTK networks such as reachview RS2, fieldbee or even proper DIY ArduSimple/AGopengps, and they look like a great way of doing it, much better accuracies than range point/centrepoint without ridiculous subscriptions. Are people that are using these managing to get for example a trimble 1050 and nav 900 receiver on a autosteer ready tractor to work seamlessly? Thanks
 

PSQ

Member
Arable Farmer
Location
Scottish Borders
Do these DIY RTK signals all work with radio modules, or are there any options for home-brewed VRS via sim card?

I've got until next summer to find an alternative to paying CNH £650 for their signal to run auto steer via a 372 antenna and (currently) a Sierra Airlink GX450.
 
I spent some time last year trying to format a TSIP feed for an ezguide 500 but I haven't got it working yet.
This is what i was worried about, im not a computer programmer so if i was to go down this route it needs to be fairly straightforward. Anyone using the reachview rs2 with trimble? Was it as easy as getting the trimble screen unlocked to rtk and connecting??
 

Richard Smyth

Member
Arable Farmer
With help from pheasant surprise who isnt here any more ive set up my own base station at home feeding correction data online using an ntrip caster.

i use https://www.use-snip.com/

base station is a topcon hiperv which has a failed uhf transmitter so rather than spending lot to repair i have it feeding online instead.

rover is a ag3000 on a fendt using varioguide and a agi4 with topcon x25 screen.

all works well and accuracy is same as running it via uhf. i have a laptop running snip permantly online uploading and remote access via teamviewer to be able to diagnose and fix any problems.
 
Wish I knew. Owe him a beer or 2 and no chance of paying up if can’t get hold of him.

granted with this Covid rubbish it will be a long time before I’m back in Suffolk I’d guess
Would be great to have a chat with him by the sounds of it, any other rtk experts that could sort us out?
 
Location
North
Better to try to discuss these issues at the forum. There are many experts on board even if not many as experienced as Pheasant Surprise.

Is your Trimble receiver unlocked for RTK? The unlock costs likely more than a complete AgOpenGPS system although I understand AOG is not an option at this stage.

I have very limited knowledge about Trimble but I would suggest you to find someone with a setup that you would find acceptable rather than "blindly" trying to make it work.

Since your receiver is a fresh model, it should accept those modern MSM-messages that most low cost (DIY) base receivers favour. You might still find issues with the lack of RTCM1008 and/or MSM1230 and such. Not necessarily simple to solve without deep knowledge about the base and the rover products.
 
Better to try to discuss these issues at the forum. There are many experts on board even if not many as experienced as Pheasant Surprise.

Is your Trimble receiver unlocked for RTK? The unlock costs likely more than a complete AgOpenGPS system although I understand AOG is not an option at this stage.

I have very limited knowledge about Trimble but I would suggest you to find someone with a setup that you would find acceptable rather than "blindly" trying to make it work.

Since your receiver is a fresh model, it should accept those modern MSM-messages that most low cost (DIY) base receivers favour. You might still find issues with the lack of RTCM1008 and/or MSM1230 and such. Not necessarily simple to solve without deep knowledge about the base and the rover products.
At the moment i have an autosteer ready tractor (CNH) and a fm 750 on rangepoint with only VR and section control unlocked, and im looking to upgrade to the 1050 with autosteer aswell hopefully making use of the sacgs scheme!

So at the moment Its a bit of a clean slate, I don’t think i can go down the agopengps route as i would need VR, section control, and a lot more patience! The 1050 also offers isobus which would be very handy.

Is there a way of feeding an RTK signal into the 1050 without fully unlocking? What set up would you go for?

I’ve looked through some of the emlid forums and it seems like there has been a lot of suggestions to add these rtcm1008 messages but im not sure if they have done it? Is there an option to add these through rtk2go?
 

wuddy

Member
Location
Scottish Borders
Do these DIY RTK signals all work with radio modules, or are there any options for home-brewed VRS via sim card?

I've got until next summer to find an alternative to paying CNH £650 for their signal to run auto steer via a 372 antenna and (currently) a Sierra Airlink GX450.
Worth speaking to precise Soloutions get a dual sim modem and get an rtk signal off our base station.
 

deutz615

Member
Mixed Farmer
With help from pheasant surprise who isnt here any more ive set up my own base station at home feeding correction data online using an ntrip caster.

i use https://www.use-snip.com/

base station is a topcon hiperv which has a failed uhf transmitter so rather than spending lot to repair i have it feeding online instead.

rover is a ag3000 on a fendt using varioguide and a agi4 with topcon x25 screen.

all works well and accuracy is same as running it via uhf. i have a laptop running snip permantly online uploading and remote access via teamviewer to be able to diagnose and fix any problems.
Hi Richard, Keen to hear more about what you've done at the rover end. in particular with the AGI4/X25, I assume the receiver is running the topcon IMU/RTK module, how are you getting the AGI4 to receive NTRIP, Keen to setup the same over a farm wide WIFI network, however not sure how to connect the AGI4 to wifi, even although there is a 'wifi' signal strength shown panel on the monitor, dosn't seam to be any documentation on how to utilise this
 

wuddy

Member
Location
Scottish Borders
Sorry for the slowest reply *ever* @wuddy I missed your reply from 6 months ago... 🤦‍♂️
Is the signal your own, or is it part of Precise Solutions network?
Precise Soloutions network but we have a base station on the farm not sure of full ins and outs have pm’d you!
 
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Location
North
Hi Richard, Keen to hear more about what you've done at the rover end. in particular with the AGI4/X25, I assume the receiver is running the topcon IMU/RTK module, how are you getting the AGI4 to receive NTRIP, Keen to setup the same over a farm wide WIFI network, however not sure how to connect the AGI4 to wifi, even although there is a 'wifi' signal strength shown panel on the monitor, dosn't seam to be any documentation on how to utilise this
WIFI must be from the X25 screen. The AGI-4 does not have built in WIFI support. You would need a compatible radio (Satel or similar) or a SIM card in the AGI-4 modem and use NTRIP over cellular data.

You might be able to build a WIFI receiver that outputs serial correction data for the AGI-4 via the external modem connector. Not exactly straightforward.
 

Wombat

Member
Location
East yorks
WIFI must be from the X25 screen. The AGI-4 does not have built in WIFI support. You would need a compatible radio (Satel or similar) or a SIM card in the AGI-4 modem and use NTRIP over cellular data.

You might be able to build a WIFI receiver that outputs serial correction data for the AGI-4 via the external modem connector. Not exactly straightforward.
I think the latest software has an ntrip client in the console so it can be sent over the one serial to the agi4 so as long as the console has internet you are good to go
 

Rejuvenating swards: Which option is best?

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Written by Brian McDonnell

Maintaining grass quality during mid-season grazing is important. Farmers can maintain quality by entering ideal grazing covers of 1,300 – 1,500kg DM/ha, and grazing down to a residual of 4cm every rotation.

If you are now in a situation where cows are not cleaning out paddocks as well as they should be, leading to the development of steamy grass within the sward, here are some options.

Common options for rejuvenating swards include:

  1. Take a silage cut, probably into bales, remove the material and start again with the aftermath...
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