Best GPS Receiver

Question

I am planning to use Field Maps to collect environmental data in a remote area and have two questions based on a recent experience.

1.  What is a good GPS receiver to pair with an iPAD to get at least sub-meter locations in the field, preferably real time using GNSS?  Preferably bluetooth, but open to any suggestions.

2.  Is there a good video tutorial to setting up and using field maps offline?  I need to be able to download background imagery so I don't need to rely on a good mobile connection in the field since coverage is spotty at best.

Cheers,

Justin

Linde_Carmack · Answer

Justin, We have used the Trimble R1s for quite a few years. I've been disappointed in the workflow since moving from Collector to Field Maps with the R1s. We just bought 2 Juniper Geodes and have been much happier with those. Any new devices we buy moving forward will be the Geodes. The entire workflow is simpler and more user friendly, which is important for our users as it's not something they do daily.

DavidTipping-Jsy · Answer

Hi Justin - We opted for the Emlid Reach RS2. This unit is not very expensive considering its capability and has worked fantastically. We get cm accuracy most of the time with differential correction accessed through an onboard SIM. Under canopy in woodlands we achieve about 20cm accuracy on average.

This integrates  well with Survey23

https://emlid.com/how-to-connect-reach-with-arcgis-survey123-a-step-by-step-guide/

BrendonJoyce1 · Answer

We have been using Leica GG04 GNSS Receivers since 2018. We are now up to 5 units and I have been really happy with them. You can't really go wrong with any of the big three options above (Trimble, Leica, Eos). For using realtime RTK corrections and getting to cm accuracy all of the units seem to be around the same price ($8,000+). Well worth it for the ease of use with Field Maps (and formerly Collector). We've collected over 22,000 points with few issues.