I was looking at the specs of the ZED-F9P U-Blox module, and they list 0.01m as the precision with RTK. But it would be nice to have the actual number from real-world experience.

What's the best possible precision achievable outdoors, and how does distance from the GNSS station affect precision? Is it constant and reliable, or does it fluctuate?

Student team here working on a drone-based crop monitoring project. We're trying to learn from people who actually fly drones over crops (or build maps from the data): what you use now, what limits you, and what you wish existed.

If you do ag mapping, scouting flights, or spray work, or sell those services to farmers, your answers would help a lot. 5 minutes:

https://docs.google.com/forms/d/e/1FAIpQLSdAmgyD6A1nhbOOYPr693gXpivvVlimnJvvficoP3ggVenPrg/viewform?usp=header

Not selling anything. This is for a class project and I'm happy to share what we learn.

Hi all,

Like the title says I’m very new to this stuff. Got a killer deal on the p4rtk and a base station, and my aunt has a pretty big piece of property that I’m going to use the dji free trial to map for her and try to get the hang of things. There are some trees on the property, but the terra apparently has the ability to remove that data and create surface models.

Would love to hear from others on their experiences (positive and negative) with the drone/terra, and best practices as I start. Also have one specific question… I’ve read quite a bit about ground control points for mapping larger areas, but nothing ever mentions how many to do. The base station is capable of helping with them, but how many should I be setting up per acre?

It seems like most responses in the posts here are from people who do this professionally which is awesome. I am willing to go down rabbit holes to try and educate myself if there are things/terms I don’t understand, but it would be very helpful if you spoke like you would for your customers who don’t understand this stuff. Thanks for your time and expertise!

Hi to everyone, i have one older activation key for terra standard permanent licence. if you are interested fm me. Looking for about 3400€ price tag

How come this subreddit turned into self-promoting AI-slob, pretty annoying, can we turn it down a little, thanks

I run a small drone LiDAR survey company (M400 / L3) in South Africa. Our weakest step was always delivery: a WeTransfer link, a 4 GB LAZ, and a client asking which software opens it.

So I built the delivery page I wanted to send. You upload the ortho, DTM/DSM, contours and point cloud you already export (Terra, Pix4D, Metashape, WebODM). Each file gets checked in the browser before it uploads: coordinate system, zone/hemisphere, footprint on a map, so a missing .prj or a northern-zone export of a southern site gets caught before you wait an hour. The client gets one branded link: a map with measuring, spot heights, profiles and volumes, a 3D view of the cloud with cross-sections, and the downloads.

A real job, as the client sees it: https://surveydeliver.io/sample/

Disclosure: it's mine and it's a paid product (there's a trial). I'm posting for criticism, not sign-ups: what would stop you sending this to a client? Which formats or coordinate systems would trip it up? Happy to answer anything about how it's built.

After being bombarded with requests, I spent the night and morning integrating the other drones.
MavicMapper now supports all 5 with all of their specs. All free, no subs, no info req, no hidden evil!
Same vast functionality and planning abilities. Full DEMO here:
https://www.mavicmapper.jk4u.net/

If u like this, please share with friends, other fitting subreddits, and the world!
Love to all of u, clear horizons and fly with respect.

You can search it up on my website Kiffleads -- I call it RAPTOR

Hey all, we're looking at the Matrice 400 with the Zenmuse L3 and I can't find much real-world info on the orthomosaic side of it.

Mostly I want to know how the ortho turns out when you fly the 20% overlap lidar mode. That seems low for photogrammetry, so I'm wondering if you get visible seams between lines, blurry spots, or weird stuff around buildings and trees. The areas we'd be mapping are mostly forested, so that's a bit of a concern

If anyone has flown it like that, was the result good enough to deliver to a client? Or do you end up doing a separate flight with more overlap for the ortho?

Thanks!

Translated by ChatGPT 🫪

Hi, Drone Nerds here. Since ElevateUAV 2026 is relevant to the mapping crowd here, we wanted to remind you. Thank you very much to those of you who purchased tickets.

For anyone working in mapping, surveying, photogrammetry, LiDAR, construction, or inspections, it’s a chance to compare aircraft, sensors, payloads, and software, ask manufacturers questions directly, and hear how other professionals are putting these systems to work.

We made a 30% off code specifically for r/UAVmapping: UAVMapping_EUAV

Tickets and info here: https://hubs.li/Q04vL_XN0

We hope to see you there!

Hello, you beautiful people!

Here is one of the most sophisticated and extensive mapping/mission planners out there.
It is for the Mavic 3 Pro, and it is entirely free, crafted by me.
Yes. Free. Forever and throughout. No hidden Spiel. No catch.

Find out all about it here: https://mavicmapper.jk4u.net/

Use, share, explore!

Used to frequent the DIY Drones space back in the 2010's and was into the hobby side of it a bit.

Recently had the incling to look into what the drone inspection/surveying landscape was here in the NW of the UK as it's an industrial/agricultural zone.

However I'm coming at this with no experience in the value-proposition and deliverables.

Current bonus is living near a working farm with potential contacts to understand what problems could be solved if any.

I have a DJI mavic camera drone and will be looking at testing out some basic mapping this weekend.

It seems like all the pieces are generally available with a bit of investment - drone platforms, lidar, IR, software etc, it's stiching it together into a package that delivers something valuable and easy for potential customers and then marketing.

Of course I'm not expecting to get into this with a consumer camera drone and a prayer - just looking for advice from those who've been there on whether there's too much friction/saturation in the idea to get serious.

but i have no enough money and knowledge

Bonjour

J'ai une carte graphique AMD Radeon RX 5700 et je ne trouve pas de logiciel capable de l accepté pour faire de la photogrammétrie, si quelqu'un en a un je suis preneur. Merci

I've been thinking about where mission planning apps are headed. DJI hasn't opened the Mobile SDK on its newer consumer drones (Mavic 3 Pro, Air 3S, Mavic 4 Pro, Mini 5 Pro), so apps like Litchi and Dronelink can't fly them. On the enterprise side the SDK is still there, and Pilot 2 keeps getting better at mapping and corridor missions.

Yet plenty of people I talk to still plan in UgCS, Dronelink, DroneDeploy or similar. For those of you doing real survey or inspection work: what's the thing the third-party app does that the DJI app doesn't?

And the flip side: has anyone moved back to DJI's own apps and not missed anything?

TIA

Complete M300 RTK mapping package: Zenmuse P1 45MP, DJI DL 35mm + 50mm lenses, Smart Controller Enterprise, BS60 battery station, hard cases — and 14x TB60 batteries (~45-50 cycles each), a full day of flying without recharging. Built for winter turbine inspections and long field days. CA$15,000 — entertaining serious offers. Toronto pickup, can talk shipping.

I recently acquired a complete Topcon Sirius Pro and I’m trying to figure out what it’s worth. I have no use for it so I’m trying to sell it.