DJI Mavic 3 Enterprise with RTK Module and D-RTK 2 Workflow

[@tommasocodolo]

super thanks. Easy way to set up DRTK2 and ME2. Super useful

[@lukerietzke182]

Great video and demonstration, would love to see a follow up video of more in depth post processing with "deliverables".

[@TerrestrialImaging]

Thanks for watching. This is something we plan to do. We will eventually have another video for in depth processing.

[@HollandProductions_CA]

Hey Chris very detailed and informative video. Keep up the great work!

[@TerrestrialImaging]

Thanks for watching!

[@Xanngysl]

Hi Chris, may I use my emlid Gnss to use insted DJI RTK Base?

[@TerrestrialImaging]

Hello! Yes you can, you just have to make sure your Emlid base station is set to Local NTRIP mode, at which point on your controller you will have to connect via custom rtk network. You will have to use all of the connection paramaters seen on the emlid app

[@Xanngysl]

@@TerrestrialImaging Nice I will try, Thanks Chris.

[@shahafnansulaiman3652]

Hai. Can i do PPK processing using DJi terra? Because sometimes DRTK is not set on a known point, so we do not get final correction base point coordinate.

[@TerrestrialImaging]

I've never tried it with photogrammetry but I have done it with the L1. You have to take your ppk rinex file and name it with a specific naming scheme. From there you would include it in terra and your good to go.

[@precision_aerial]

Ds there a reason you didn't use the dewarping feature when you were mapping. Sorry the question is not RTK related.

[@testd8430]

Dewarping is suggested to be turned off, because enabling dewarping may lose some information on the edge. DJI Terra prefer original photos to create mapping result.

[@scuddrunner1]

Thank you for the info on NOT using the RTK. All I want is to use my mavic 3 E for month to month construction progression. Thanks!

[@TerrestrialImaging]

Thanks for watching! The camera on the M3E is great for that and you are correct, the RTK module is not necessary for progression pictures.

[@scuddrunner1]

@@TerrestrialImaging Right on, I can save 700 bucks. Thank you!!

[@nicks8484]

@@TerrestrialImaging would you say its necessary for construction progress and initial site reports for larger projects? Would it be useful to prevent warping without the need of setting up dozens of GCPs?

[@maddercat]

I found an rtk2 that says for matrice....will it work with m3e's still or is there some difference?

[@TerrestrialImaging]

there is only 1 DRTK-2, some people label it "for matrice", but it works for the M3E, Matrice 300/350, P4RTK, etc. You will be fine with the DJI D-RTK2 regardless of the title of the listing

[@maddercat]

@@TerrestrialImaging thanks!

[@MicroForestProject]

Hey Chris, thanks for the great video. Do you know if its possible to use the D-RTK 2 as a hand held mapping device (mode 3) with DJI Mavic 3 Multispectral / Enterprise? Trying to use the D-RTK 2 to create some GCPs before flying, but there's not a lot of information out there.

[@TerrestrialImaging]

Hello! this is not possible unfortuantely

[@SteelCityDrones]

What case are you using for the DRTK2 base station and tripod?

[@TerrestrialImaging]

This for the tripod: store.terrestrialimaging.com/dji-d-rtk-2-tripod-bag And we have now switched to using this case for our M3E: store.terrestrialimaging.com/dji-mavic-3-enterprise-surveyor-case-for-dji-drtk-2.html

[@SteelCityDrones]

@@TerrestrialImaging at 1:01 in the video you are using a case with the tripod and the DRTK2 base station but that's different than the links above.

[@MrSovde]

Anyone know how to use a manual input coordinate with the D-RTK2 with the M3E. Need to use a coordinate eith orthometric height, not elliptical. How to proceed after storing a Frequent Coordinate?

[@TerrestrialImaging]

you have to go into the camera view -> 3 dots on the top right -> rtk tab -> connect to DRTK-2 -> advanced settings -> enter the password (default is 12345678 - something like that ) -> then you can enter the lat, long, elevation of the antenna ... keep in mind whatever the elevation of your point is, you have to add 1.801m to it as that is the distance between the bottom tip of the pole and thec enter of the antenna. Also keep in mind these coordinates have to be in WGS84 format using meters as the unit. Best of luck!

[@erickneo]

Hello, I'm new and I've already seen many of your videos. Question: to use the DJI MAVIC 3E+ the RTK Module, is it mandatory to also purchase the D RTK-2? I am thinking about doing topographic surveys, what precision would I obtain with and without RTK.

[@egorchorniy346]

Thank you

[@TerrestrialImaging]

no problem!

[@egorchorniy346]

@@TerrestrialImaging I would just add one info here, if you’re trying to activate d rtk2 for first time sometimes you may need to update it to the last version 1) connect the d rtk to the laptop( cable in the box) 2) download Dji assist 2 (enterprise) 3) you suppose to see the d rtk2 in the app and should be good to update to the latest version

[@TerrestrialImaging]

@@egorchorniy346 All good points!

[@mattbrettle6614]

Hi Chris. Do you know if this set-up can be used without using the planning of flight. I'm making photogrammetric models of complex 3D features (rock cliffs etc) - and I think using a flight plan might be risk the drone having to avoid many obstacles. It would make for a stressful mission than piloting the drone myself. Great video - thanks.

[@TerrestrialImaging]

Hi Matt, yes you can still fly with RTK enabled even if you aren't flying an autonomous mission. You would do all the steps in this video except you would just be flying manually!

[@denaco]

hi buddy. i noticed the 2d map didnt line up well to the google map overlay. i thought that the rtk precision would line it up prefect with the google map? good break down though as i'm contemplating this rtk kit but will definitely need practice if i get it before offering the service. how much is the dji terra subscription? i notice other software providers like dronedeploy charge a hell of a lot per month.

[@TerrestrialImaging]

Google earth satellite imagery is not as accurate as most people expect it to be, and sometimes can be multiple meters off. There is areas though when it could be tighter. The drone imagery collected during the flight is also referencing GPS data collected from the time it was flown where the GPS data from google earth might be a bit older. You shouldn't really expect the google earth data to perfectly line up with your drone data. DJI terra costs $4,000 USD for a perpetual license and If you wish to pay annually it is $1400 USD

[@Xamkoz]

Thank for vid. Liked, commented, sbuscribed)

[@TerrestrialImaging]

Thanks for watching!

[@fabianstevenne]

Hi Chris! Which is European class of the mavic 3 E? Is it an C2?

[@elganjones01]

Hi Chris, I'm curious to know would you normally set gcp's with this setup or do you find the accuracy good enough with this workflow? (without setting any additional gcp).

[@MeMyself_andAI]

Hey man i know you asked this a while ago, but NEVER do a RTK flight without at LEAST 4 GCPs if it is for anything commercial, esp construction related. Preferably 5 GCPs, 4 corners and one in the middle. If you dont do this, you will have huge data loss due to inaccurate measurements. I have tried everything under the sun to avoid doing GCPs, but they are absolutely essential, even with RTK base stations. When i only used the DRTK-2 with no GCPs, it put my entire jobsite off by 1 foot vertically. We ended up just going with a Topcon network subscription because the DRTK-2 wasnt giving us very accurate results, but im sure there has to be something i was doing wrong. For reference, im a full time drone pilot in the construction industry

[@HalfwayAerial]

How would you get a known point to place the RTK station at? If you don't have a known point and just set up the base station how accurate could you expect the data to be? I am trying to decide if I should get the DJI base station or go for an Emlid. Leaning towards the DJI since it is compatible with my T40 as well as my Mavic 3M.

[@TerrestrialImaging]

Im sure you have learned the answer by now as this comment is older, but you would need someone to get a point for you, or use the Emlid to get the point. The emlid can sit on a point for a minimum of 4 hours, and then you can run that data through OPUS to get a known point. If you do not have a known point everything will be relatively accurate but not coordinate level accurate.

[@fillup86]

Does RTK work out of cell service? I map out in the bush, and was curious to know if GCPs are my only option. Thanks for the video!

[@TerrestrialImaging]

Thanks for watching! The DRTK-2 will work outside of cell range, however if you wish to use NTRIP (receiving RTK over the internet) you will need cellular/wifi in order to do so

[@fillup86]

@@TerrestrialImaging awesome thanks!

[@BorrasRenato]

@@TerrestrialImaging thank you for your video. I'm about to buy the Mavic 3E with an RTK unit, but I work in remote areas 100% of my time (no access to internet) I just wanted to be triple sure that ; 1. I should be able to use the RTK module connected to a D-RTK 2.0 station WITHOUT internet, and connection will be fine, right? and 2.- I noticed in your video how important was the stability of the RTK station, do you know if it works from Boats or Vessels (which are in constant motion?) thank you so much.

[@TerrestrialImaging]

@@BorrasRenato 1) The D-RTK 2 can be used without internet connection. 2) The base station will not help if it is in constant movement. It is not supposed to be moved at all and ideally should be on a known point. Please reach out to our team at terrestrialimaging.com if you have more questions and need help purchasing the right equipment.

[@refugioffernandez2729]

Do you know where I can get the hard case for the antena?

[@TerrestrialImaging]

That hardcase is a nanuk hard case! Sorry for the delay!

[@Logypierogi]

Do you recommend? D-RTK 2 Ground Station Over Emlid ??

[@TerrestrialImaging]

The Emlid offers more, as it can be used to mark GCPs. The DJI DRTK-2 is super convenient. Just turn it on and go for the most part.

[@KTHKUHNKK]

That's pretty darn awesome. I was wondering do you still have any Typhoon H 480 Parts or 480s in Stock ? Thanks Keith

[@TerrestrialImaging]

Hey Keith, hope all is well! Thanks for watching. All Typhoon related parts that we have can be found on our store, store.terrestrialimaging.com/search.asp?keyword=typhoon&search= When it comes to the drone itself, we not longer sell Yuneec drones.

[@volcanesdelecuador]

Very intersting video. What is the maximum distance the drone can be from the base ?

[@TerrestrialImaging]

12km or 7.5 miles. This is in perfect conditions with no obstructions. Thanks for watching!

[@KTHKUHNKK]

Thanks for sending me the parts list you have on the Typhoon H What happened to Yuneec did they stop making drones. ? You guys have some great videos on it. Keith

[@baileystark7629]

So when you buy the D-RTK 2 do you need to purchase a subscription to some sort of DJI RTK satellite service or is it a plug and play solution? And is the purpose of it to increase the accuracy of measurements on your map? Does this eliminate the need for ground control points? Great video btw.

[@TerrestrialImaging]

So, there is no additional costs or subscriptions. You will pay $3,600 for the RTK device and $250 for the tripod. From there its plug and play forever. The purpose of it is to utilize two GPS systems in order to make sure your drone is writing the most accurate GPS meta data to the images you are taking. DJI says that if the base station is on a known point, you can expect an absolute accuracy of 3cm and you can achieve this without ground control points, however, on a surveying job I reccomend GCPs Thanks for watching!

[@baileystark7629]

@@TerrestrialImaging Awesome. So what GCPs do you recommend? And for really large swaths of land how many would you recommend?

[@TerrestrialImaging]

@@baileystark7629 www.amazon.com/gp/product/B07PHLYTCS/ref=ppx_yo_dt_b_search_asin_title?ie=UTF8&psc=1 These are affordable enough and get the job done. And I dont really have a true formula, but Id want a minimum of 3. One at the highest point, one at the lowest point and then one somewhere in the middle. But 3-5 should suffice. Again these have to be put on a location that you or a surveyor has marked. These do nothing if you just toss them on the ground.

[@houssienemad7606]

Can i use my topcon GR5 as abase station instead of D-RTK 2

[@TerrestrialImaging]

So long as your base station can output RTK corrections over Local NTRIP, you can!

[@guillaumeberthier915]

Can you explain why you skipped that you have to set the DRTK2 above a known point and then input its coordinates on the RC ? Thank you

[@TerrestrialImaging]

This is true! For absolute accuracy purposes you would set the DRTK-2 on a known point and then input the coordinates and height offset in the RC. For this video we were demonstrating a general workflow purpose for the DRTK-2 and M3E so people can can an idea of what the general setup and workflow feels like. Anyone using this for survey grade accuracy would input the known point

[@oscarleonc.]

Great video and great job done, thank you very much. I only have to ask how I can find the DRTK-2 suitcase ?

[@TerrestrialImaging]

Check out store.terrestrialimaging.com. We have a few different storage options for the D-RTK 2.

[@garyrendano4717]

are you able to move the D-RTK2 around to get some other GCPs?

[@TerrestrialImaging]

The DRTK-2 can not be used to create GCPS. For this, I would reccomend the Emlid RS3 for its price point and ease of use. The Emlid RS3 can set GCPs, Check points, Known points, and can be used as an RTK base station.

[@LindsayPalermo]

@@TerrestrialImaging if we are using this D-RTK-2 station (which my company has), is it still recommended to set GCPS? New to this area and trying to figure this out. If we do still have to set them, when would we use just the D-RTK-2 station then?

[@TerrestrialImaging]

@@LindsayPalermo The DRTK-2 mobile station will give you absolute accuracy as low as below 3cm so long as the base station is on a known point. If it is in an arbitrary spot, you will only have relative accuracry to where the base station thinks it is. I would always reccomend using some GCPs regardless, as it just helps with accuracy checks and aligning your data better if need be. For example, if you are not terrain following and you have a GCP up on the hill and a GCP at "0 elevation", the GSD for images taken at the hill and at "0 elevation" will be different, and the GCPs can be used to check accuracy and adjust Its key that the GCPs/Checkpoints are also on marked points to help you truly assert your accuracy

[@BNIRc]

I'm trying to map a solar farm , and the RtK is off compared to n-trip , is that because I need to set it up on a known point ?

[@TerrestrialImaging]

When setting up the base station you need to do 2 things: 1. Put it on a known point for absolute accuracy. If it is not on a known point you will only have relative accuracy, meaning everything in the ortho will be accurate relative to other things in the ortho, but not exactly accurate from a coordinate stand point 2. You need to get the Z coordinate for the known point and go into the rtk advanced settings, and set the height of your pole by adding 1.801m + Z coordinate height in meters. Your coordinates need to be in WGS84 format when using the DJI base station

[@BNIRc]

@@TerrestrialImaging thanks for help

[@TerrestrialImaging]

@@BNIRc, no problem!

[@UniquePilots-fn1ek]

Can the D-RTK 2 work with the Mavic 3 Thermal? or is it just Enterprise

[@TerrestrialImaging]

Hey sorry we must have missed your message. It can work with any Mavic 3 Enterprises series drone so long as that drone has an RTK module attached to the PSK port on top

[@BermudaDrift]

Can I buy those vests online?

[@TerrestrialImaging]

Yes, we have them in our store. store.terrestrialimaging.com

[@ansariflightplan5814]

Hai can it connet 2 m3e simutialy

[@TerrestrialImaging]

One D-RTK 2 Mobile Station can link with up to five remote controllers

[@shivrajpatil6723]

can we use a dgps base as an RTK base?

[@TerrestrialImaging]

If your device is able to cast RTK data locally, and have a connection based on a mount point, ip, etc. It should work.

[@roymercer22]

Did you not need ground control points for this project?

[@TerrestrialImaging]

This video was to demenstrate the workflow for using the RTK module. GCPs will always increase your accuracy so we reccommend using them on a real job whenever possible

[@roymercer22]

@@TerrestrialImaging Excellent. Can you show a full workflow of how all of that is connected. Really trying to gather the entire process

[@TerrestrialImaging]

@@roymercer22 It is definitely on the list of videos to make!

[@roymercer22]

@@TerrestrialImaging I'll be looking for it. Thank you for the response.

[@Kumarswamy_Hosmath]

Can you make comparison of drone rtk with base station and without base station?

[@TerrestrialImaging]

Do you mean like without the DJI D-RTK2? This drone requires RTK data to perform an RTK flight. It would need a base station/NTRIP account/3rd party base casting locally

[@Kumarswamy_Hosmath]

@@TerrestrialImaging thanks for the response. So without a base station the flying with rtk module on drone is useless?

[@TerrestrialImaging]

@@Kumarswamy_Hosmath Correct. The RTK module does absolutely nothing without an RTK connection to a base station, NTRIP, etc. As a matter of fact, with RTK toggled on, the drone will not even take off and fly without a connection to an RTK service.

[@Kumarswamy_Hosmath]

@@TerrestrialImaging i am still left some doubt on "connection"....... The source for connection HAS to be RTK Base station? NTRIP or any other services are accessible through internet connection?

[@TerrestrialImaging]

@@Kumarswamy_Hosmath Correct the source is any device that can cast RTK data (a base station, NTRIP, etc)

[@baddogastro]

You never continued with the explaination of setting the pole height. You mnetioned it, but that was it. You also never talk about the Pilot app, does the M3E use the Pilot App or the Pilot 2 app, or are you using DJI Terra for setting up and flying this mission?

[@TerrestrialImaging]

We are using the Pilot 2 app for mission planning which is the default app to control the M3E. No promises, but we may make another video going into more detail. If you are interested in buying, please reach out to our team and we'd be happy to answer all of the questions you may have.

[@SteelCityDrones]

Why did you not show that the base has to be plumbed directly over your known point? Why did you not cover how to add the coordinate of the known point over the tripod into Pilot 2? Without doing that your viewers will think that this is not needed and that the base station and Dataset of the Mavic will have accurate GEO DATA which is not the case.

[@abdulrazaqsalaudeen8682]

Price please

[@TerrestrialImaging]

the ground station is $3,600 and the legs for it are $250, the drone itself is anywhere from $3,500-$5,000 depending on number of batteries and other accessories, care policy, etc