The full NTRIP Setup Guide for DJI RTK Drones

Nice find  and thanks for sharing DA.    The video provides some great cost saving advice.  

Start of the video: throw your base station in the trash, the NTRIP is much better.

End of the video: a base station is still better if you want precision.
And he ends by saying "I am a drone professional".

And I will even add that the argument of get rid of distance issue from base station to rover is to have a poor understanding of what RTK is, especially in vast and sparsely populated regions like Australia.

In short this is a full guide of nothing. Maybe just a start of an explanation of what RTK is, because it must be recognized, even if the information are very succinct for a "full guide", it is +/- correct.

LV_Forestry Posted at 8-24 03:17
Start of the video: throw your base station in the trash, the NTRIP is much better.

End of the video: a base station is still better if you want precision.

Perhaps you could do a better one and share it.   

DowntownRDB Posted at 8-24 03:16
Nice find  and thanks for sharing DA.    The video provides some great cost saving advice.

Yes but now we just need the option enabled on the non enterprise drones.

DAFlys Posted at 8-24 03:29
Perhaps you could do a better one and share it.

Unfortunately, video is not my field. And I don't have time to get started.

On the other hand, I think I have already contributed accurately, especially on this forum to allow me to comment on this kind of video.

I put myself in the shoes of someone who is going to buy thousands of euros of DJI equipment, who is not going to be able to meet the manufacturer's promises in terms of data accuracy.
He will look for a solution on the internet and will certainly come across this kind of video with a very evocative but also very misleading title, and end up wasting 10 minutes of his time.

https://forum.dji.com/thread-285647-1-1.html

DAFlys Posted at 8-24 03:29
Yes but now we just need the option enabled on the non enterprise drones.

Perhaps you will realize that the reason why consumer drones do not have this option is purely and simply hardware.
It is not with this kind of video that we can understand it.

LV_Forestry Posted at 8-24 03:46
Perhaps you will realize that the reason why consumer drones do not have this option is purely and simply hardware.
It is not with this kind of video that we can understand it.

Indeed.  But as prices and size come down they surely will  be the same hardware in there in the future.

LV_Forestry Posted at 8-24 03:44
Unfortunately, video is not my field. And I don't have time to get started.

On the other hand, I think I have already contributed accurately, especially on this forum to allow me to comment on this kind of video.

The free and paid for RTRIP services do say what the offer in terms of accuracy.   And for some that will be enough to not spend thousands on DJI or alternative base stations.

DAFlys Posted at 8-24 03:29
Yes but now we just need the option enabled on the non enterprise drones.

I'm thinking that will not happen as they are reserving that as a draw to buy an enterprise drone.  

DAFlys Posted at 8-24 04:02
The free and paid for RTRIP services do say what the offer in terms of accuracy.   And for some that will be enough to not spend thousands on DJI or alternative base stations.

DA, you are far from having sufficient background to discuss this.
No, NTRIP provider can't guarantee the level of accuracy of the corrections because they depend on the distance from the rover, atmospheric conditions, the quality of the rover receiver itself and the latency of the network through which the corrections pass.

I will go even further in the criticism of the video, it maybe beneficial if someone comes here with real RTK issue, in the video the main topic is that he recommends not to invest in a mobile station to save 3000$ something like that. ok why not.
And at the end of the video he clearly specifies that the use of GCP is essential to obtain a certain quality of geo referencing, which is absolutely a correct statement.

What do you use to survey your GCPs?

... ...

It more appropriate to recommend to not invest in DJI DRTK2 which is a pure crap, but strongly recommended to purchase a receiver like Emlid RS. This is a true advice.

The author himself acknowledges that his video is a bit borderline.

And in case you had any doubts, now there are none at all:

LV_Forestry Posted at 8-24 05:06
DA, you are far from having sufficient background to discuss this.
No, NTRIP provider can't guarantee the level of accuracy of the corrections because they depend on the distance from the rover, atmospheric conditions, the quality of the rover receiver itself and the latency of the network through which the corrections pass.

I never said guarantee.  I said they make clear what they offer.  

LV_Forestry Posted at 8-24 05:38
And in case you had any doubts, now there are none at all:

[view_image]

You seem to be dismissing the RTRIP services out of hand as being totally useless,   whereas to some people that provide as solution to a problem without a massive outlay,  not all jobs are going to require the accuracy or repeatability that the full RTK solution provides.   Of course the full solution is the best approach but it's also massively more expensive than paying out $70 a month for a RTRIP provider for the odd months that you need it.

DAFlys Posted at 8-24 06:07
I never said guarantee.  I said they make clear what they offer.

I don't catch the idea

LV_Forestry Posted at 8-24 06:18
I don't catch the idea

Probably not qualified to catch the idea then.

DAFlys Posted at 8-24 06:15
You seem to be dismissing the RTRIP services out of hand as being totally useless,   whereas to some people that provide as solution to a problem without a massive outlay,  not all jobs are going to require the accuracy or repeatability that the full RTK solution provides.   Of course the full solution is the best approach but it's also massively more expensive than paying out $70 a month for a RTRIP provider for the odd months that you need it.

I'm just making the connection with the number of requests and testimonies received on this subject on the forum and elsewhere.
My point is not that NTRIP is the devil, I use it every day.
What I mean is to recommend to someone, especially someone who is starting out, not to include a base station in their business plan, it's counterproductive.
Especially since when you're starting out in this kind of business, $3,000 is not much.


And then, moreover, much cheaper and extremely effective base station solutions exist. I detailed them in a post:
https://forum.dji.com/forum.php? ... 029&pid=2967568

So far I only have positive feedback whatever the solution chosen, from the cheapest to the deluxe.

DowntownRDB Posted at 8-24 05:04
I'm thinking that will not happen as they are reserving that as a draw to buy an enterprise drone.

Give them time,   just look out how many satellites a modern DJI drone now acquires compared to just a few years ago.

DAFlys Posted at 8-24 06:20
Probably not qualified to catch the idea then.

If you want to play that game,

1st it is not RTRIP but NTRIP.
2nd they say absolutly nothing about accuracy.

LV_Forestry Posted at 8-24 07:44
If you want to play that game,

1st it is not RTRIP but NTRIP.

Actually there the providers do suggest accuracy.

DAFlys Posted at 8-24 07:49
Actually there the providers do suggest accuracy.

[view_image]

Now I see where you're going with this. Wasn't it easier to answer that from the beginning?

In short, it's not the achievable precision that is expressed there. It's what we can hope to have at most. It's a general rule if you prefer.

The most important thing is that it's a value relative to the reference point. The precision with which the position of the base station was measured, and for how long. I'll take the case of RTK2Go, it's a standard NTRIP network different from PointPerfect for example. Very often these are base stations installed by individuals. In my region, farmers do this to be able to guide their tractors. Suffice to say that if you connect to it and you're close enough, yes you'll easily have 1cm of precision...
Compared to the coordinates of this base ! If it itself is offset with the true ECEF coordinates, then your entire project will be offset. And that's the whole problem with using DRTK2. So you see, NTRIP doesnt totaly solve issue encountered with mobile base station.
If you want to know more feel free to ask. You can also rely on the UK governement CORS.
OS Net & GNSS (ordnancesurvey.co.uk)
Which is a professional level NTRIP network. As pro they have the same kind of statement as i.

LV_Forestry Posted at 8-24 08:10
Now I see where you're going with this. Wasn't it easier to answer that from the beginning?

In short, it's not the achievable precision that is expressed there. It's what we can hope to have at most. It's a general rule if you prefer.

Exactly.  I never said it was a guarantee.  

DAFlys Posted at 8-24 08:37
Exactly.  I never said it was a guarantee.

Ok sorry, not native English language user here. I understood it in that way.

Another nice find!

Montfrooij Posted at 9-7 10:18
Another nice find!

cheers Monty.

DAFlys Posted at 9-8 08:01
cheers Monty.

You're welcome!