The Surveying kit worked great after updating the firmware. When I received it it was at version 2.2 which meant that internet was not working. I tried using the firmware update tool for windows, and although I could talk to the unit through the port, make changes, etc the firmware upgrade refused to work (Windows 11) . After trying for several hours I gave up and tried doing the firmware upgrade using my Mac Laptop. That worked, and once the firmware was upgraded the full functionality was there and it worked great.

I used it to serve the locations of several field telescopes in Southern Arizona and it worked great despite the fact that the telescopes were surrounded by mountains. Took about 10 minutes to get to 10mm resolution.

So Pros: works great once you get the firmware upgraded. All the instructions and quick setup are written assuming the firmware is upgraded, so if you can't upgrade the firmware, the quick start instructions do not make any sense. There are no instructions to use the device under the old firmware, making it a bit frustrating.

But overall a very good product for the price once you spend a day to so getting it to work properly and be configured properly. The instructions work perfectly if the firmware has been upgraded.

I've been messing around with GPS surveying since the early 1990s, when Selective Availability was still a thing. Getting highly accurate absolute positional data has always been a challenge, one that is generally only solved by the application of large amounts of money. This kit removes that barrier! I use it in conjunction with SW Maps, a great free app (Android only, but no one who's serious about technology uses an iPhone anyway), and the NTRIP Client from Lance Lefebure (also free). I use it for RTK via an NTRIP server to give me corrections, but I'm considering getting a second unit to act as a base station for independence from corrections that are potentially over long baselines.

Very easy to set up, especially if you follow the Sparkfun guides. I added two phone clamps, and survey pole, and a survey level bubble. All up I probably have about $800 invested, which is amazing for the degree of absolute accuracy provided by the system. I pull the exported data into either QGIS or Autocad, depending on project needs. The workflow is simple.

Anyone who is interested in surveying accurately can bring this into their lives and perform great surveys with a minimal (equipment) learning curve - learning about surveying is another topic, but you can get some pretty good tuition online from any number of sources.

RTK Surveying is a cheap and ideal GNSS RTK device to test the MyCumulus Android app. Switching on, Bluetooth pairing, selecting the SparkFun RTK Surveying device in MyCumulus... and within a minute we got centimeter precision thanks to the NTRIP client in MyCumulus, streaming the RTCM correction data over Bluetooth. Especially as software developers, we don't need an expensive device that basically does the same as the SparkFun RTK Surveying.

recibi conforme y vere pronto altas precisiones en mi proyectos personales.

To test its accuracy I took it to a geodetic marker nearby and used free RTK from MACORS to get a position fix. It hit the location pretty much dead on, within the accuracy of the placement of the geodetic marker, plus continental drift since the marker was measured 25 years ago. Easily 10x more accurate than a standard GPS or phone.

It also works well with various PPP services thanks to the antenna being in their databases so they can get very accurate estimates of position, often coming back with 95% certainty of the latitude and longitude within 1cm.

That said, it did need a bit of electrical engineering to get it started, as it initially couldn't see any satellites. On debugging, I found a solder glob between the antenna and ground. Once that was removed it works like a charm.

There's a lot more that could be improved with it, and I expect it'll continue to get better as the firmware is getting regularly updated. One thing it could use is better power draw management when first plugged into a computer as sometimes it draws too much and shuts down the USB port. It would also be nice if it interfaced more directly with the iPhone's location services and/or if there were more apps that worked with it, or if SW Maps (or the internal firmware) knew about this particular antenna so it could do an even better job of giving accurate results.

Oh my, where do I even begin with this wonderful RTK-Surveyor? I mean, I just received it, like so recently, and I'm already having a blast with it. First of all, let's talk about the antenna. It's such a pleasure when it decides to work, but unfortunately, it's as sporadic as the weather these days. So, I did what any normal person would do and went to their forum for help, only to find out that their chat page is just a never-ending loop of links. Joy! But don't worry, Sparkfun came to my rescue with their non-helpful response, followed by an email that just confirmed what I already knew - the antenna was intermittently faulty.

But wait, there's more! Turns out the SD card slot on the board has some special, unique design that matches up perfectly with the case - so perfectly, in fact, that I lost an SD card inside the case. No big deal, right? Just another little feature to keep me on my toes.

So, here I am with a unit that I had to fix myself by buying a replacement antenna cable and digging out an SD card. But hey, it's all worth it when it decides to work and I get to enjoy playing with it. Because, let's be real, who doesn't love fixing their own gadgets? It's such a joyous experience.

came for the documentation, stayed for the ease of use and accuracy.. in a world where there really aren't super cheap options for this kind of thing, i've found that this is one of very few "affordable" options (other than the unbundled board versions from sparkfun, emlid m2, etc..).. really like the switches, leds and overall ease - using a cellphone and new york state's ntrip (many states apparently will give you ntrip correction data for the cost of signing up..) we were able to get to cm accuracy with a cellphone and no sweat.. followed mounting product suggestions and got a jaunty surveying rover pole out of them..

Took a bit to download most recent software. I think instructions can be improved but in general excellent device.

Product is providing the expected features and specs Easy implementation in few minutes Very satisfied of this purchase