How RTK works | Real-Time Kinematic for Precise GNSS Positioning

[@benni2294]

Beautiful animation, keep it up!

[@lp08hopefully]

Best explanation on YT, thanks.

[@m0rz-sc3gd]

My rtk setup currently is not emlid brand, but I inherited it. Perhaps the next one will be. Cool video!!

[@Golfing-Carpenter]

Why are you using a Base and a rover for RTK? In Sweden we only use a GNSS Rover with RTK connection via ex Trimble TDC600. Or a 360-active prisma with totalstation integrated.

[@skydeploy]

Much better, more detailed video!

[@luisramos2521]

Tremendo nice excellent!!! Way to go.

[@gunningopher]

Pretty good simplification of the current state of RTK. I've been using RTK for almost 30 years, have built and operated an RTK network, train people on how to use it and help develop standards for its use with a major state DOT. Your distance error statement was not correct in my opinion, at least for this level of discussion. In my opinion, you should simply have described the distant dependent error. Saying it is good or not at a range depends on the precision/accuracy needed, and that varies. RTK is entirely appropriate at 50im, for certain applications (single or multi-band) Single band RTK isn't just limited to 10km, It has more to do with the integer ambiguity (described) and often having to fix over a known point. Multiband RTK has near instantaneous 'fix' and can better correct for ionospheric error, which does impact the distance dependent error, but not by much for RTK. This is a good quick description overall, and one that I would use if I were to put it in context.

[@cnmuader]

非常好视频，使我卫星旋转🥰

[@BassAnywhere]

Hi, what is the accuracy difference using only one Emlid SR2+ as a rover with RTK via NTRIP (with wifi cellphone) vs one SR2+ as a rover and another one as a base like in the video ?

[@knoblda]

Thank you so much, this helped a lot!

[@evaldaszmitra7322]

S22 supports carrier phase if I am not mistaking. RTCM messages can be received from any free nearby station. Is there nothing preventing my phone from achieving

[@LaylasEncyclopedia]

Great explanation!

[@cjleongson]

Can you like have an rtk drone to aid the rover and base when its hard to find signal because of say vegetation?

[@Emlid]

Hi! It is possible, but if there is dense vegetation, it may be difficult to obtain an accurate drone map too. Photogrammetric software needs contrasting points in photos to tie them together. Trees don't work as points of contrast.

[@cjleongson]

@@Emlid i hope that "weakness" or downside of rtk could be addressed. Gotta go for total station where there is vegetation blocking the signal

[@khaledhafiz]

Very professional. Thanks

[@IanB1015]

With RTK do you need a rover? Or would a Drone with an RTK module count as the rover in this case?

[@Emlid]

Hi there! RTK drone can act as a rover. For example, you can learn how to work with Reach RS2 base and DJI Phantom 4 RTK rover in our docs: docs.emlid.com/reachrs2/tutorials/integration/p4p-rtk/#perform-flight.

[@bhupendrakumar3834]

is it necessary that satellite is same for rover and receiver?

[@ademdingin]

Usually in the rover and base will have same satellite if they have in same area (approximately within 30km radius)

[@bhupendrakumar3834]

@@ademdingin thanks. can we say same for the phone gps? that they will be connected to the same satellite in 30km radius?

[@droneoccitanie]

Great. Is it possible to achieve millimetric precision ?

[@NithinJune]

Lmao you’re so greedy I love it

[@smiauu]

nope. rtk cant reach mm precision but it is possible on relative positioning

[@fatima546]

Well explained

[@blain5827]

How is the known control point determined?

[@stargazer7644]

Base position is known by conventional surveying, or gps averaging. And your rover accuracy relative to the base is good, but the absolute accuracy is only as good as your base position accuracy.

[@Panchobway]

Where do I buy?

[@Emlid]

Hi there! You can place an order at our online store: store.emlid.com/ :) You can also check out the list of dealers in your country: emlid.com/dealers/

[@alhdlakhfdqw]

really incredible videos thank you very much! subbed :)

[@NithinJune]

_centimeter level accuracy_

[@ashfaqahmed5165]

I learned the RTK survey Can anybody help me in pakistan ??

[@bunnysai90]

But we need explanation about static...... Please note NOT PPK.... We need static

[@Emlid]

Hi there, thanks for your request! We'll consider your idea for future tutorials :)

[@doormanfoc]

All the license "professional" surveyors that I hired and personally witnessed stake out a worksite using just the carry around one... I would always double checking their work measuring physicals tools it has always been off by a whole six inches to a foot no matter who I hired. Now watching this video and knowing that none of them use proper equipment to give us accurate information I am fuming at how much money was wasted paying those lazy cheap frauds. Should/can I sue them?

[@adegokeayobami2208]

Is either the site has canopy or the instrument they brought is fault, next time tell them to do test of instrument before site operation

[@MJ-it8ru]

Lol no they are using a remote base through the internet, they don't need to set up their own base station. It's called VRS and it's not going to be 6" off. In my experience 99% of the time some guy with a tape measure is saying that the surveyors are off, he is the one that is wrong.

[@gunningopher]

I can assure that neither I or anyone that works for me would have done that, if it is true. Take your concerns to the registered professional who you should have contracted for the work. If you are not satisfied, take you claim to the state board of registration. If you just hired some hack that isn't licensed (as they are legally required to be in most states) then you get what you pay for. If you are in California, you have a lot of options. If you are in one of those "I hate regulation" states, then you might be screwed.

[@doormanfoc]

@@gunningopher Sadly all these surveyors were licensed, I am in Florida so it seems this is one area that needs better regulated. I think part of the problem is with some of these surveyors the actually licensed person is not actually doing any the work and is sending barely trained field workers out to do the bare minimum to cut cost.

[@gunningopher]

@@doormanfoc take a complaint to the board of registration. It is common practice for the licensed practitioner to be in the office, but that in no way absolves him of responsible charge for the work that they contract.

[@GddbHdhd-gb4wl]

Brown Kenneth Rodriguez Donna Garcia Jessica

[@wuzhai2009]

Doesn't say much.. gloss over many details!

[@stargazer7644]

How RTK works: math and handwaving. This explained nothing. How about explaining those complicated calculations at least a little bit?

[@pedrosmith4529]

I am sorry but that looks like a diaper.

[@aprillakilak]

This is the only explanation I found that actually made sense to my non-surveyor soul 🥲thank you so so much

[@elivan5541]

Beautiful animation, keep it up!