Range point or centrepoint

[Northern farmer]

I'll still stick to my 5cm pass to pass all day long. heheee
Not fussed if it moved if your away from the field or it wont be in the same place next year
All very easy to correct & at no extra COST !!!

Guidance is very nice to have but why is it dearer year after year the technology is getting better & more n more are using it shouldnt it be going the other way?

I'll set mine up when i do rolling this spring & see how close i can get the bugger pass to pass

Not sure if you noticed but we have pretty much the same opinion. I (or Brian) never claimed 50 cm was the pass-to-pass error (that you care). The 15 cm RMS at 95% confidence likely turns to something like 5 cm pass-to-pass at 75% confidence. So we agree with Trimble too. You don't care about the 50 cm figure but "we all three" probably agree with that too.

Now the importance of year-on-year repeatability is personal matter. We have to accept that some farmers do not care, some do.

Considering costs, the tractor equipment from the factory have not become much cheaper but if we talk about correction signal options, the private RTK base cost has come down a lot!

 

[Northern farmer]

This is drilled with the Rangepoint RTX £290 subscription and there are 4 points that come to mind:
- It's 1st cousin to arrow straight.
- 'Pass to pass' is very good for the low investment in hardware (2nd hand Trimble FM-750 and an old EZ-Steer). There is a slight mismatch in the hollow but its cosmetic.
- It's far superior to using side markers, especially in low light situations where staring into the gloaming leaves you 'fair fudgeed' at the end of a shift.
- Upgrading to 'Centrepoint' (or full blown RTK) would marginally improve the cosmetic appearance of the crop, but it wouldn't add a penny to the bottom line, it would have quite the opposite effect unless it was for precision veg.
[It also shows the southerners what a 3rd week September sown wheat crop looks like ?, and before someone points it out, no it didn't get it's pre-em.]

PSQ, looks very nice. It also looks exactly the same as a photo posted earlier on this forum and the field had been drilled on EGNOS!

I believe we both are of the opinion that there is a significant difference between EGNOS and Rangepoint (or RTK). It just isn't easy to prove with a single photo.

 

[JCfarmer]

This is drilled with the Rangepoint RTX £290 subscription and there are 4 points that come to mind:
- It's 1st cousin to arrow straight.
- 'Pass to pass' is very good for the low investment in hardware (2nd hand Trimble FM-750 and an old EZ-Steer). There is a slight mismatch in the hollow but its cosmetic.
- It's far superior to using side markers, especially in low light situations where staring into the gloaming leaves you 'fair fudgeed' at the end of a shift.
- Upgrading to 'Centrepoint' (or full blown RTK) would marginally improve the cosmetic appearance of the crop, but it wouldn't add a penny to the bottom line, it would have quite the opposite effect unless it was for precision veg.
[It also shows the southerners what a 3rd week September sown wheat crop looks like ?, and before someone points it out, no it didn't get it's pre-em.]
View attachment 854431

Is that drilled with a trailed drill?

 

[Farma Parma]

Ney wonder Guidance is getting dearer the unlock codes for diff options went up 40% at the start of Jan so ive learnt today.

 

[Farma Parma]

This is drilled with the Rangepoint RTX £290 subscription and there are 4 points that come to mind:
- It's 1st cousin to arrow straight.
- 'Pass to pass' is very good for the low investment in hardware (2nd hand Trimble FM-750 and an old EZ-Steer). There is a slight mismatch in the hollow but its cosmetic.
- It's far superior to using side markers, especially in low light situations where staring into the gloaming leaves you 'fair fudgeed' at the end of a shift.
- Upgrading to 'Centrepoint' (or full blown RTK) would marginally improve the cosmetic appearance of the crop, but it wouldn't add a penny to the bottom line, it would have quite the opposite effect unless it was for precision veg.
[It also shows the southerners what a 3rd week September sown wheat crop looks like ?, and before someone points it out, no it didn't get it's pre-em.]
View attachment 854431

Very Tidy drilling that.
I have the odd line like that but its few n far between.
RTK & all its costs wont make the drilling any better

 

[PSQ]

PSQ, looks very nice. It also looks exactly the same as a photo posted earlier on this forum and the field had been drilled on EGNOS!

I believe we both are of the opinion that there is a significant difference between EGNOS and Rangepoint (or RTK). It just isn't easy to prove with a single photo.

It might be the same field but I doubt it's the same photo, as it was taken last Wednesday ?
We used Egnos between 2010 and whenever RTX was first released (2015?). The only times we've used Egnos since is when the RTX sub runs out, and It automatically defaults back to Egnos

Is that drilled with a trailed drill?

Trailed 4m Sprinter.

 

[clbarclay]

One way of testing for yourself if and how quickly your signal drifts is to drill every other pass across a field and then see how it matches up while infilling back across the field.

I use rangepoint and have my nudge increment set to 5cm. That is as course it can be while still being fine enough to always nudge to within an inch of where it should be.

When I do the above test I find I tend to have been infilling for half an hour before I do the first nudge. So drift rate has been about 5cm per hour.

That is without doing anything like loosing signal under trees etc. The most noticeable drift has always been while the signal is still converging. Start working while that is happening and it can seem diabolical on occasions.

Long term drift, I haven't drilled a tramline for a few years now. Generally when spreading, I rarely have to nudge more than 20cm and quite often don't nudge at all. However in some fields I have had it where I have to consistently nudge a bit in the same place every pass through that crop which indicates there was a convergence or drift issue while I put the tramline in the first time, which is annoying.

Rangepoint is plenty good enough to consistently show up mistakes.

 

[Briantee]

There was the comment earlier about the tech improving and costing more etc. Well, the tech really hasn't changed that much, We have a 20 year old Outback with RTK that is just as good as any RTK system today. Certainly it costs more today, there are subscriptions, maybe looks a little prettier, but the overall tech is practically identical.

The limitation is based on corrections, and how well it does it. That hasn't changed in 25 years no matter how fancy of a name the marketing department comes up with for the same old tech they been overcharging for. Thank goodness there are new players in the GPS world demonstrating just how ridiculously priced 1/2 meter GPS actually is.

 

[manttys]

does anybody know how much is Trimble GX-450 RTK VRS modem? Considering upgrading to RTK