How to setup RTK on Mavic 3E, M300, & M350 with Emlid RS2/RS3 and NO internet. 4 Different Scenarios 

Thank you John! I am glad it was helpful.

Glad it was helpful!

Thanks for watching! Glad to be of help.

To clarify, the unit in question is the RS2+.

Hi Daniel, I use Tmobile but you would want to use the carrier that provides the best coverage in your work area. For some that may be ATT, other it could be a local carrier. Hope this helps. I did a newer video that shows the multiple ways to setup RTK using the Emlid Units. There are other brands of GNSS out there that allow this as well.

Good morning. First off if you need an RS3, visit www.DroneMappingTools.com to get a great deal and help our YT channel. Now on to your question. You do NOT need internet service to survey with the RS2 (or any Emlid unit). There are MULTIPLE ways to use RTK when doing surveys with the RS3. One of the most convenient ways is when you do have internet access (either with SIM card in the device or by using a hotspot device). If you are using your RS3 as a Rover to shoot various points in a survey and you want to use NTRIP for RTK, then yes, you must have internet connection. If you are going to use your RS3 as a Rover and you do not have internet, then you can do your survey and then do PPK processing later in the office using Emlid Studio. If you are wanting to use your RS3 as a BASE for RTK with your Drone fight, then you can use NTRIP (via internet connection) OR you can connect your drone controller DIRECTLY to the RS3 (using the RS3 hotspot) and then you do what is called "Local NTRIP". When using Local NTRIP no internet connection is needed. Very nice feature.

@Rogyn987 that is correct. For scenario #2, the RTK is being provided via internet so the RS2/RS3 and the RC Controller do not need to be on the same wifi. They both just need internet and to be setup properly for the Emlid Caster service ( caster.emlid.com/app/mountpoints ). Once you login to the free Caster service, it gives you the NTRIP details for the base and the rover/controller).

Hi nikouer, thanks for watching. The RS2 Rover is acting as a base for the drone. So it must be stationary before the flight and stay in the same location during the flight. You should also go into the BASE SETTINGS and set the RS2 Rover "base location". In this example you would use the "AVERAGE FIX" option and I would set the time to be 3-5 minutes. In this way, the RS2 Rover is tied directly to the RS2 Base which is setup over a known control point. Now your drone which is getting corrections from the RS2 Rover is still tied to the site control point. I hope that helps.

@@DroneMappingTools so actually its just a base where previously have compute its position from another base. Because i thought, using lora radio, it could act as a repeater for the corrections from the original base. Not as GPS base just as a correction repeater. It would be useful if you want to move aware from the base and always have a visual contact with the drone, especially if you are close to obstacles.

@@nikouer So in the case where you need to move above to see the drone, you can move about freely (within 30-60 meters) when you have a very powerful Wifi router. I can move about 30 meters away but to get any further I would need a better wifi router. It is best however, to set the ROVER up in a very good place to fly from. This example was using the scenario that your BASE was occupying a control point that was a very bad place to fly from. So then you would take the Rover and set it up in a very good place to fly from. But if you still needed to move about to see the drone, you would want to have a very good WiFi router that has very good range so you can continue to receive corrections as you move around. The only other option is to have cellular service and receive corrections using the Emlid Caster service which allows you to move anywhere you need to while flying.

@@nikouer But you can also move the Rover after each flight and just update the RS2 Rover (drone base) location each time using LoRa radio. You could just not move it during the flight.

Hi @larissamarques5606. The only purpose in the router is to provide extended range for you to walk around why the drone is flying. If you do not have a router, you can actually connect your Mavic 3E (or M300) controller directly to the Emlid RS2 or RS3 unit and you can do the "local ntrip" RTK that way. I did not demonstrate connecting your RC Controller directly to the RS2/RS3 but it works very nicely!

@@DroneMappingTools I thought so. Thank you for your reply. I am looking on a way of replicate this, but I gave an old TPS T10 antenna which used SurvCE as the data collector software so I am not i can do this through there. I was wondering if you'd have any insight on it. Best regards

@amarques5606I assume this is the model you have? kdgeo.cl/wp-content/uploads/2019/10/T10_DS_EN_20160524_Rev2.pdf This supports NTRIP corrections. You may have a couple of options: 1. Use an online NTRIP Caster Service. Your TPS T10 would upload corrections (output) to the Caster Service and then your Mavic 3E controller would receive those corrections. You would have to use the specified username, password, port, etc for the base AND the rover. Emlid has a free caster service at Caster.Emlid.com . 2. The document suggest you can connect to the T10 as an "access point". So you must find out if the T10 supports "local ntrip"? Local NTRIP is simply a NTRIP caster service that is running directly on the GNSS receiver and you do not have to use an online service like Caster.Emlid.com. I know nothing about the T10 so you will have to do some digging and see if this is an option. If it is, you are set and you can setup the T10 using Local NTRIP just like users can with the Emlid units. 3. If neither of the above are possible, then you could do this with an Emlid M2 and Ardusimple Antenna. You can buy the M2 for $650 at www.DroneMappingTools.com. The antenna can be purchased from mouser.com for about $150